Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. इंटरनेट मानक “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda “Invent a New India Using Knowledge” “प0रा1 को छोड न’ 5 तरफ” Jawaharlal Nehru “Step Out From the Old to the New” “जान1 का अ+धकार, जी1 का अ+धकार” Mazdoor Kisan Shakti Sangathan “The Right to Information, The Right to Live” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता ह ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 10500 (1991, Reaffirmed 2009): Drinking Water--Specification (First Revision). UDC 628.1.033
Transcript
Disclosure to Promote the Right To Information
Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.
इंटरनेट मानक
“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda
“Invent a New India Using Knowledge”
“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru
“Step Out From the Old to the New”
“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan
“The Right to Information, The Right to Live”
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”
“Invent a New India Using Knowledge”
है”ह”ह
IS 10500 (1991, Reaffirmed 2009): DrinkingWater--Specification (First Revision). UDC 628.1.033
Septembe,. J 991
(Reaffirmed 2009) REAFFIUIED 'j q If ~ IS 10500: 1991
'J.flq ff} 4 JjJ 1q; ...... '
tft;t Cf)f qr;fi - ~ III ~
Indian Standard DRINKING WATER- SPECIFICATION
( First Revision)
Eighth Reprint SEPTEMBER 2001 (Including Amendment No. I &. 2)
UDC 628.1.033
C BIS 1991
BUREAU OF INDIAN STANDARDS MANAK BHAVAN. 9 BAHADUR SHAH ZAFAR MARO
NEW DELHI 110002 Prlee Group .. Septembe,. J 991
(Reaffirmed 2009) REAFFIUIED 'j q If ~ IS 10500: 1991
'JflqJJ4 JI/1q; ...... '
tft;t Cf)f qr;ft - ~ III ~
Indian Standard DRINKING WATER- SPECIFICATION
( First Revision)
Eighth Reprint SEPTEMBER 2001 (Including Amendment No. I &. 2)
UDC 628.1.033
C BIS 1991
BUREAU OF INDIAN STANDARDS MANAK BHAVAN. 9 BAHADUR SHAH ZAFAR MARO
NEW DELHI 110002 Prlee Group ..
AMENDMENT NO. 1 JANUARY 1993 TO
IS 10500: 1991 DRINKING WATER-SPECIFICATION
( Fint Revision ) ( Page 2, Table 1, SI No. (xi) ] - Insert tbe following new miner under
respective columns .fter 51 No. (xi) and renumber subsequenl rows: ( I) (2) (3) (4) (S) (6) (7)
xli) MJaanesium 30 EncnlSlalion 10 100 16. 33. 34
(IS Me). Wiler supply of IS 3025:
mgll. MIX slruclure and 1964
adverH erteclS
Oft domestic use
( Page 3, Table I, SI No. (xvi) ] - Shift tbe "latter under respectiVe columns and put .fter 51 No. (ix) under essential characteristics Ind renumber the subsequent rows.
(CHD013 )
I-56 BISfNDI200!
AMENDMENT NO. 1 JANUARY 1993 TO
IS 10500: 1991 DRINKING WATER-SPECIFICATION
( Fint Revision ) ( Page 2, Table 1, SI No. (xi) ] - Insert tbe following new miner under
respective columns .fter 51 No. (xi) and renumber subsequenl rows: ( I) (2) (3) (4) (S) (6) (7)
xli) MJaanesium 30 EncnlSlalion 10 100 16. 33. 34
(IS Me). Wiler supply of IS 3025:
mgll. MIX slruclure and 1964
adverH erteclS
Oft domestic use
( Page 3, Table I, SI No. (xvi) ] - Shift tbe "latter under respectiVe columns and put .fter 51 No. (ix) under essential characteristics Ind renumber the subsequent rows.
(CHD013 )
I-56 BISfNDI200!
AM[NDMENT NO. 2 SEPTEMHER 2003 TO
IS 10500: 1991 DRINKING \VATEI{ -SPECI."'ICATION ( F,r\/ Revt\wlI )
I Page 3. Table I. SI No {X\II}, (0/5. ( 10 be lead alolle: H.t/I! Allle/,t/mew No 1)] - Substitute 'No relaxation' /01 100'
t Page 3 Table 1. SI No (X'HI), (0/1 ( (() be 1t.1Id aloll~ It 1111 AlIIl'lUlml'llt No 1)] - SubstItute '001' /01 '005'
f Page 3. Table I. Sf Nos (XIX), (xx), (J>.XIV). col 6 ( 10 be ,cad 0101",( IVIIIr
[ Page 4. Table 1. SI No (xxx). col 6 ( to be lead along 1\ Itlr Amelldmelll No I) J - SubstJtute 'see Note 2' for '-'
( Page 4. Table I, Note) - Substitute 'Note l' for 'Note'
( Page 4. Table I, NOle ) - Insert the follOWing 'Note 2' after the eXlstmg Note
'Note 1- The .mal),sls for Irw: pesticides shall be conducted by an accredlled laboratory 1.lSing Internatlonally establIshed lest methods
(CHD 13)
2. -56 B1~INDI2008
IIIUII •• tll
Water Sectional Coarmittee, CUD 13
FoaEWORD
Thil Indian Standard ( Fint Revi.ion ) w •• adopted by the Bureau of Indian Standarth) after the draa finalized by (he Wat" Sectional Committee had beeD approved by the Chemical Division Council.
". andaid was originally publiJhed in 1983. The current . reviaioD hu been undertaken to take into account the uptodate informadon available about the nature and effect of various contaminants u .Iso tbe new tedaniquea for identifying and determining their concentration. In this revision bal~d on ~ence lained additional requirements for alkalinity, alumiri"ium and boron have been incorporated and the permiMible Jimitl for dissolved solids. nitrate and pesticides residues have been modified.
A report prepared by the World Health Organization in cooperation with the World Bank showed tb., in 1975, tnme 1 230 million people were witho\lt tafe wat~f supplies. These appalling facts wc-re untral to the United Natiol" decision to declare an International Drinking Water Supply and Sanita .. tiOG decade. brainoing in 1981. Further, the VI Five·Y~ar Plan of India had made a special provision for availabUily of safe drinking water for the masles. 'fhererore, this standard was prepared with the followi .. objoctiva:
a) To .... .e .. the quality of water resourca. and b) To th~k the effectiveness of water treatment and supply by the concerned authorities.
Duria, VII .·ive-Year Plan. 55 mini million ru"fit". were identified with a view to meet supply of water to.U the problem villaga. The VIII Five-V ... a, Plan intends to provide safe drinking water to the rural mUl. It alDo propose to eOlure supply of desired quality and required quantity of drinking waw. Whllt" pl'f'paring thilltandard. the Committee had taken note of the limited testing facilities available In the country. Thil .. andard, thererore, categories various characteri,tics as e!lsential or desirable. The atand.rd ,,'sf) mcmtionl the de~irabJe limit and indicates its background so that the implementing authoritiea may f'xerc:.iae their discretion, keeping in ·,jew the health of the people, adequacy of treatment, dc. All t".~ntial characteristics should be examined in routine. Besides, aU desirable characteristia mould be examined either whm a doubt arilel or the potability of water from a new source il to be •• bI.ed.
It hu been recogniaed that often it i.s neceuary to rdax the specifications, especially when no alternate ~ are available and therefore. to enable thc experts to exercise their discretion a maximum permiMible limit hu allO been given.
In the tue of virological examination, if not eVen one plaque-forming unit ( PFU ) of virus t'an he found in llilre of water, it can reasonably be .uumed that the water is safe to drink. It would, however. be necessary to ~xamine a sample of the order of 10 litre. to obtain a proper estimation of the PFUI at thialevel. Such f'xaminationl cannot be made in ordinary control laboratories but there mould be at lea.t one I_botatory in the country or region capable of carrying out virus examinations sad abo or punuiDI further feteareb on this lubject.
The method. or test for varioUi charactemtia mentioned in this standard arc currently under revuion aDd Ib.cirlatest revitioD mall be used in tatinl.
10 the formulation of this standard, usistance baa been derived from the follOWing publications!
a) International Standards for Drinking Water issued by World Ilealth Organization, 1984 Geneva;
b) Manual of Standard! nf Quality for Drinking Water Supplies. Indian Council of Medical Research, 1971, New Delhi, and
c:) Manual on Water Supply and Treatment ( ,hi,d rms;'II). Miniltry of Ur~n Development. 1989. New Delhi.
For the purpose of deciding \\fb~ tht"r a particular rrquirement or this standard i, complied wit.h. the final value, observed or CalCUI6t(d, apreuing the rtsult of a test or analysis. shall be rounded off in accordanee with IS 2 : 1960 'Rulea (or rounding off numerical values (rlviSld ) •• The number of li1ni.6ca.:J:del retained in the rounded oft" value showd be the ume aa that of the specified value iD tbia •
Water Sectional Coarmittee, CUD 13
FoaEWORD
Thil Indian Standard ( Fint Revi.ion ) w •• adopted by the Bureau of Indian Standarth) after the draa finalized by (he Wat" Sectional Committee had beeD approved by the Chemical Division Council.
". andaid was originally publiJhed in 1983. The current . reviaioD hu been undertaken to take into account the uptodate informadon available about the nature and effect of various contaminants u .Iso tbe new tedaniquea for identifying and determining their concentration. In this revision bal~d on ~ence lained additional requirements for alkalinity, alumiri"ium and boron have been incorporated and the permiMible Jimitl for dissolved solids. nitrate and pesticides residues have been modified.
A report prepared by the World Health Organization in cooperation with the World Bank showed tb., in 1975, tnme 1 230 million people were withotlt tafe wat~f supplies. These appalling facts wc-re untral to the United Natiol" decisioD to declare an International Drinking Water Supply and Sanita .. tiOG decade. brainoing in 1981. Further, the VI Five·Y~ar Plan of India had made a special provision for availabUily of safe drinking water for the masle.. 'fhererore, this standard was prepared with the followi .. objoctiva:
a) To .... .e .. the quality of water resourca. and b) To th~k the effectiveness of water treatment and supply by the concerned authorities.
Duria, VII .·ive-Year Plan. 55 mini million ru"fit". were identified with a view to meet supply of water to.U the problem villaga. The VIII Five-V ... a, Plan intends to provide safe drinking water to the rural mUl. It alDo propose to eOlure supply of desired quality and required quantity of drinking waw. WhUtt pr'f'paring thilltandard. the Committee had taken note of the limited testing facilities available In the country. Thil .. andard, thererore, categories various characteri,tics as e!lsential or desirable. The atand.rd ,,'sf) mcmtionl the de~irabJe limit and indicates its background so that the implementing authoritiea may f'xerc:.iae their discretion, keeping in ·,jew the health of the people, adequacy of treatment, etc. All t".~ntial characteristics should be examined in routine. Besides, aU desirable characteristia mould be examined either whm a doubt arilel or the potability of water from a new source il to be •• bI.ed.
It hu been recogniaed that often it i.s neceuary to rdax the specifications, especially when no alternate ~ are available and therefore. to enable thc experts to exercise their discretion a maximum permiMible limit hu allO been given.
In the tue of virological examination, if not eVen one plaque-forming unit ( PFU ) of virus ran he found in llilre of water, it can reasonably be ••• umed that the water is safe to drink. It would, however. be necessary to ~xamine a sample of the order of 10 litre. to obtain a proper estimation of the PFU. at thialevel. Such f'xaminationl cannot be made in ordinary control laboratories but there mould be at lea.t one I_botatory in the country or region capable of carrying out virus examinations sad abo or punuiDI further feteareb on this lubject.
The method. or test for varioUi charactemtia mentioned in this standard are currently under revuion aDd Ib.cirlatest revitioD mall be used in tatinl.
10 the formulation of this standard, usistance baa been derived from the follOWing publications!
a) International Standards for Drinking Water issued by World Ilealth Organization, 1984 Geneva;
b) Manual of Standard! nf Quality for Drinking Water Supplies. Indian Council of Medical Research, 1971, New Delhi, and
c:) Manual on Water Supply and Treatment ( ,hi,d rms;'II). Miniltry of Ur~n Development. 1989. New Delhi.
For the purpose of deciding \\fb~ tht"r a particular rrquirement or this standard i, complied wit.h. the final value, observed or CalCUI6t(d, apreuing the rtsult of a test or analysis. shall be rounded off in accordanee with IS 2 : 1960 'Rulea (or rounding off numerical values (rlviSld ) •• The number of .i1ni.6ca.:J:del retained in the rounded oft" value showd be the ume aa that of the specified value iD tbia •
Indian Standard
DRINKING WATER - SPECIFICATION ( First Revision )
1 SCOPS
The standard prC'cribes the requirements for the euential and desirable characteristics required to be tested for ascertaining the suitability of water for drinking purpose.
2 REPERENCES
The Indian Standard listed in Annex A are necessary adjuncts to this standard.
3 CHARACTERISTICS
3.1 The test characteristics are given in Table I.
3.2 Bacterialolleal ExamiaadoD
3.2.1 Waler III Dil"ibution System
Ideally. all samples taken from the distrtbution system including consumers' premises, should be free from coliform organisms. I n practice, this is nOl ah",ays attainable, and 'he following standard ff)r water collected in thr. distribution system is then-tore recommended whf"U tested in accordance with IS 1622 : 1981.
a) Throughout any year, 95 percent of sampk!l should not contain any coliform organisms in lOu ml;
b) No sample should contain E. Coli in 100 mli
c-) No sample should contain more than In coliform organisms per 100 mit and
d) Coliform organisms should not Le delectable in lOO ml of any two consecutive sampJts.
3.2.1.1 If any coliform organisms are found the minimum action requirrd is immediate resampling. Th~ repeated finding of 1 to lO coliform organisms i~ 100 ml or the appearance of higher numbers in individual samples sug~("SlS that undf'siralJle mate~ riaJ i~ gaining accc!;s to the water and measures should at once be takc'n to discover and remov('" the source of the pollution.
3.7.2 UnpifUd Walry Supplir.\
\Vhcre it is impracticahle to supply waler to e'mSllntt"'U through a pipt:d distribution net\\ ork allli \\·ht n° untre.lted sourer!, such as wdl!4, bort"hoh'" and springs which may not be nalUrall¥ pure, have to Uf' u'it"c1, the requirement!!. for pip~d supplies may not hr attain'Lblt~. In such circumstano's, disinf~ction although desirahle is nOl a/ways practicable, and runsidcrable reliance has
3--56 BI~DV2001
to be placed on sanitary inlpeet.ioo and not exclusively on the results of bacteriological examination. Everything possible should be done to prevent pollution of the wat~r. Obvious sourcel of contamination should be removed from the immediate catchment area, speCIal attention being gi.ven to the safe disposal of excrement. We lis and storage tanks should be protected by lining a::ld covering, surface drainage should be dl\,prtt'd, erosion prevented and the surrounding area p.Jved Access of man and animals should be r~nrlned hy fencing. alld should be so dc<,jgned that fouling is prevented when dra.wing ~ater. A !though not supplied through pipes, water from such sourc~S is IIkdy to UOdf"1 gu further deterioration in quality durmg transplI(t or storage befor~ dl inkirt~ Containers u!ed foc water should he kq>t dean, covert"d and dear of the floor. The most important faclor in achleving these objectives is to ("nsure the cooperalion of the local r.ommulIilY. and the importance of education in simple sanitary hygiene should be strongly stres!oed. In h05pital~ or medical clinics with such sHpplie~. the value of some form of treatment is ~tressed.
3.2.7.1 Bacteriologically, the objective should be to reduce the coliform count to less than 10 per 100 ml, but more importantly. to ensure the ahs("nce of faecal coliform organisms. If these organisms are repeatedly found, or if sanitary inspection reveals obvious sources of pollution whIch cannot be avoided, then an alternative source of drinking water would be sought, when("ver possible. Greater use should be made of protected ground ... wat~r sources and raw-water catchm~nt which are more Jikely to meet requiremt=nt, for potable water quality.
3.2.2.2 Although private sources of drinking wakr may he outside the jurisdiction of public health and watt:T supply authorities, such suppJit!s should still be of potable quality. The results of bacterio]ogir.al tests and those of sanitary surveys should tht"r("fore be used to encourage improvem~nt. Partial treatment may be necessuy to remove turhiditv ,.ven when coliform ('ounts are low: and other qual ity criteria may dictate the need for treatment procenes.
3.3 Virological ExamiDadoD
3.3.1 It is theoretically possible that virlls di"('asr. ran be transmitted by water free from coliform ()n~t\nism~, but conclusive evidence, that this has occurred, is lacking.
Indian Standard
DRINKING WATER - SPECIFICATION ( First Revision )
1 SCOPS
The standard prC'cribes the requirements for the euential and desirable characteristics required to be tested for ascertaining the suitability of water for drinking purpose.
2 REPERENCES
The Indian Standard listed in Annex A are necessary adjuncts to this standard.
3 CHARACTERISTICS
3.1 The test characteristics are given in Table I.
3.2 Bacterialolleal ExamiaadoD
3.2.1 Waler III Dil"ibution System
Ideally. all samples taken from the distrtbution system including consumers' premises, should be free from coliform organisms. I n practice, this is nOl ah",ays attainable, and 'he following standard ff)r water collected in thr. distribution system is then-tore recommended whf"U tested in accordance with IS 1622 : 1981.
a) Throughout any year, 95 percent of sampk~ should not contain any coliform organisms in lOu ml;
b) No sample should contain E. Coli in 100 mli
c-) No sample should contain more than In coliform organisms per 100 mit and
d) Coliform organisms should not Le delectable in lOO ml of any two consecutive sampJts.
3.2.1.1 If any coliform organisms are found the minimum action requirrd is immediate resampling. Th~ repeated finding of 1 to lO coliform organisms i~ 100 ml or the appearance of higher numbers in individual samples sug~("SlS that undf'siralJle mate~ riaJ i~ gaining accc!;s to the water and measures should at once be takc'n to discover and remov('" the source of the pollution.
3.7.2 UnpifUd Walry Supplir.\
\Vhcre it is impracticahle to supply waler to Ctm
Sllntt"'U through a pipt:d distribution net\\ ork allli \\·ht n° untre.lted sourer!, such as wdl!4, bnrt"hoh'" and springs which may not be nalUralir pure, have to Uf' u'it"c1, the requirement!!. for pip~d supplies may not hr attain'Lblt~. In such circumstano's, disinf~ction although desirahle is not a/ways practicable, and runsidcrable reliance has
3--56 BI~DV2001
to be placed on sanitary inlpeet.ioo and not exclusively on the results of bacteriological examination. Everything possible should be done to prevent pollution of the wat~r. Obvious sourcel of contamination should be removed from the immediate catchment area, speCIal attention being gi.ven to the safe disposal of excrement. We lis and storage tanks should be protected by lining a::ld covering, surface drainage should be dl\,prtt'd, erosion prevented and the surrounding area p.Jved Access of man and animals should be r~nrlned hy fencing. alld should be so dc<,jgned that fouling is prevented when dra.wing ~ater. A !though not supplied through pipes, water from such sourc~S is IIkdy to UOdf"1 gu further deterioration in quality durmg transpllft or storage befor~ dl inkirt~ Containers u!ed foc water should he kq>t dean, covert"d and dear of the floor. The most important faclor in achleving these objectives is to ("nsure the cooperalion of the local r.ommulIilY. and the importance of education in simple sanitary hygiene should be strongly stres!oed. In h05pital~ or medical clinics with such sHpplie~. the value of some form of treatment is ~tressed.
3.2.7.1 Bacteriologically, the objective should be to reduce the coliform count to less than 10 per 100 ml, but more importantly. to ensure the ahs("nce of faecal coliform organisms. If these organisms are repeatedly found, or if sanitary inspection reveals obvious sources of pollution whIch cannot be avoided, then an alternative sourct: of drinking water would be sought, when("ver possible. Greater use should be made of protected ground ... wat~r sources and raw-water catchm~nt which are more Jikely to meet requiremt=nt, for potable water quality.
3.2.2.2 Although private sources of drinking wakr may he outside the jurisdiction of public health and watt:T supply authorities, such suppJit!s should still be of potable quality. The results of bacterio]ogir.al tests and those of sanitary surveys should tht"r("fore be used to encourage improvem~nt. Partial treatment may be necessuy to remove turhiditv ,.ven when coliform ('ounts are low: and other qual ity criteria may dictate the need for treatment procenes.
3.3 Virological ExamiDadoD
3.3.1 It is theoretically possible that virlls di"('asr. ran be transmitted by water free from coliform ()n~t\nism~, but conclusive evidence, that this has occurred, is lacking.
II_ . .-s
'I.~ ... 11 P __ ... ,*1l1li_ ewrJ1 lub (Datla ...
:u.tt)
o •• u ..... _MCo..w. .........
(2)
E',.,WC ......
i) Colour, H.auIa UBill, Ma
U) Od.our
(3)
ill) T .... Alrl,able
iv) TurbkUey. NTU.,Mu
5
v) ,8 "alu8
"i) Total hard- 300 a_(MCeCO.> fDl/l,M ..
vii} Iro. ( lUI Fe ) 0·3 rnl/l, Ma
"m} Chloride. (u 250 Cl) mlIJ, }.1M
II:) Ruidual, (r .. chloriD., IDIII, Mitl
a) DiIIOlmlO1Wa mill, iii,..
ai) CalciuB fu Ca) mlJl. /tI.
75
I.IIak (4)
Abfw. 5, co_um., aeeepcaDce dec: .. "11ft
Above 5, COIliUmftf acceptaacc dftc" feun
Beyontl tbit faale the watt' wall affect the muc:oul membrane &adl or water supply lIyltem
EaCfultalioa iD water supply dructure aDe advene effect. on dom~ltic: ute
BeyoDd this limit tutt/appt>arau.u are IIIffr(hd, hu adve, .. dfect on domt'8tlC: u ..... ud walfr lupply ,tr\lthtre., and promotes iroD bact.rill
Beyocd I hi. 1imit~ IUle, corro.ion aDd palatibility lin afJcocted
EIKtUI'.'ioD in water Iluppl, Itrudur. aDd .d .. "ene eWtc:g OD ciom .. ,ic un
(5)
25
(6)
3025 ( Put 4 ) : 1983
3025 ( Part 5 ) : 1983
(7)
!ateadeel to 25 OIIly if toaic tubleuc. an _ lUll'plCtecl,
iD abaaee oIait.,.. ... e 1OU1C411
.) Tat cow. Rei wile .. beatad
b) Ted It .. y.ral dihltinl
3025 (Pana 7 Teac to be conduce aDd 8) : 198.. ted _I, after
saf'ety hu be'D elubJilhed
10 3025 ( rart 10) : 198+
No relaxadoD 3025 ( Part II ) : 198f
600 3025 ( Parr. 21 ) : 1983
1'0 32 of 3025 : 1964
1 000 3025 ( P.rt 32 ) :
2000
200
1988
3025 ( Pan 26 ): To b~ applicable 1986 oDly wb~G waeel'
is chlorinated. T~sttd at c"nlumet eDd. Wh.-n proteclioD . _,,,ifill' v,raJ iU'lr .. ~t'on ;11 rfquir~d, it !IIhould be Miff 0'5 m,ll.
3025 ( P.rl 16) : 19M
3025 ( ran 40 ) : 1991
(2) xli) Copper (a. Cu)
mill, Ma
XIII} MaDla .. e,. ( U Mil) mill, Mu
xav) Sulphate (u SO,) mIll. jl,.
<» I
200
XV) Natrate ( as 4) NO,) m,ll. MG.
live) Fluoride ( al F) I 0 mill, Mu
leVU) Pbenolic cem- 0'001 pound. ( al C.H50Hl ml11, MG.
xYlia) Mprcury ( al 0 00 I HI) mill, AlII.
XIX) Cadmium (u 0'01 Cd), mIll, Max
Xl( SelenIUm ( .. I 0'0 I St. ). mall. MGlt
,(l'I) Arsenac (al AI). mil'. Max
xxii' Cyanide (as eN). mill, Md.
XXIII) Lead ( •• Pb ), mg/l. AIQ"(
Zmc < ar2nJ. mg I, Min
An10l'lie dtte.rgenu ( ~\ MBAS) mll.A#4Jt
Chromaum (I. Cr· ... ) mB')I. MtU
0'05
0'05
005
01
AitriDteat cute, diKol«atioa .cd corrosion cf pip •• , 'vtinc nd ute ... ,', will be cauaed beyond «bit
leyood cbit HaUl tutel appearaDce are affected, bas adverse effect OD domeluc ule' aad water JUppJ) Itructures
Beyond thit caUS'1 ,utre in.enedaa1 .rritatlon whee malnes.urn or sodIum are swr. It'at
Bt') oad tbis melbaemoglobaneml& takes pJace
Fluoride may be kept as low as pofsible. Hash fluoride may cau.e fluorosis
Beyoad thi., it may caule objectionable talle aad odour
8e~oDd tbi,. tbe water becomes toxic
Be~ ond th .. , the water becom f S
IOxic Beyond tb'I, the
wal<et' becomE'S tOXIC
8t'yond thiS, «he watt'f becomes toxic
Beyond Ihis limit. the wat .. , becomes toxic
8eyond thai limit. th~ walf'f bt'comt'S tOlClC
Bt'yond thts IImat It can cause astrmgent taste and an opalesc('nce In wat~r
He) ond thIS lam,l It (.an cause a IJght froth an wat~r
May be. tarcmo. gem~ abo ... ctus liml\
3
.......... u.It ...... 411 ill ••• A .... e •• f Tnt ( Ref Alt __ t.Io~. to II )
(5)
'-5
0'3
(6)
" of 3025 J 1964
SS cf 3025: 196-+
III ... lit •
(7)
400 3025 ( Part 24): May be elltendtd 1986 up to 400 provldtd
( u Me ) dOe! Dot exceed 30
( SII col 7 )
100
"5
3025 ( Part 3. ) : 1988
23 of ~25: 1964
St of 3025 : 1964
No relaxadon (I" Note) Me ... cury lOA analy.e,
No relaaatioD ( SII Nott )
fo bf! ttlc.d wb,.n pollution .1 suspected
To be Itlted "h~n pollutton is susp~· tad
No rtiaxauon 28 of 3023 : 1964 To be t~t~ "ht'n pollu'ioa .8 II.ISptC·
ted
No relaullon 3025 ( Part 37 ) . J988
No relaxation 3025 ( farll 21 ) : 1986
No rclareation ( ~" Note)
To be testtd wh~r. pollution IS sus' pected
To be tested whpn pollution i, suspected
To be tested ",heft poUudoa/plumbo-10lveDcy IS .uspeeted
15 39 of 3025: 196. To be it'$ted wb .. n
10 Methylene.blue f'xtractlon method
poUutloa is IUS
peeted
To ~ tested whrn poUution as .us· peeled
No reluahon 38 or 3025 : 1964 To be lest,d whtn pollution .1 IUSpeeled
( ""'I"ut~ )
(2) xli) Copper (a. Cu)
mill, Ma
XIII} MaDla .. e,. ( U Mil) mill, Mu
xav) Sulphate (u SO,) mIll. jl,.
<» I
200
XV) Natrate ( as 4) NO,) m,ll. MG.
live) Fluoride ( al F) I 0 mill, Mu
leVU) Pbenolic cem- 0'001 pound. ( al C.H50Hl ml11, MG.
xYlia) Mprcury ( al 0 00 I HI) mill, AlII.
XIX) Cadmium (u 0'01 Cd), mIll, Max
Xl( SelenIUm ( .. I 0'0 I St. ). mall. MGlt
,(l'I) Arsenac (al AI). mil'. Max
xxii' Cyanide (as eN). mill, Md.
XXIII) Lead ( •• Pb ), mg/l. AIQ"(
Zmc < ar2nJ. mg I, Min
An10l'lie dtte.rgenu ( ~\ MBAS) mll.A#4Jt
Chromaum (I. Cr· ... ) mB')I. MtU
0'05
0'05
005
01
AitriDteat cute, diKol«atioa .cd corrosion cf pip •• , 'vtinc nd ute ... ,', will be cauaed beyond «bit
leyood cbit HaUl tutel appearaDce are affected, bas adverse effect OD domeluc ule' aad water JUppJ) Itructures
Beyond thit caUS'1 ,utre in.enedaa1 .rritatlon whee malnes.urn or sodIum are swr. It'at
Bt') oad tbis melbaemoglobaneml& takes pJace
Fluoride may be kept as low as pofsible. Hash fluoride may cau.e fluorosis
Beyoad thi., it may caule objectionable talle aad odour
8e~oDd tbi,. tbe water becomes toxic
Be~ ond th .. , the water becom f S
IOxic Beyond tb'I, the
wal<et' becomE'S tOXIC
8t'yond thiS, «he watt'f becomes toxic
Beyond Ihis limit. the wat .. , becomes toxic
8eyond thai limit. th~ walf'f bt'comt'S tOlClC
Bt'yond thts IImat It can cause astrmgent taste and an opalesc('nce In wat~r
He) ond thIS lam,l It (.an cause a IJght froth an wat~r
May be. tarcmo. gem~ abo ... ctus liml\
3
.......... u.It ...... 411 ill ••• A .... e •• f Tnt ( Ref Alt __ t.Io~. to II )
(5)
'-5
0'3
(6)
" of 3025 J 1964
SS cf 3025: 196-+
III ... lit •
(7)
400 3025 ( Part 24): May be elltendtd 1986 up to 400 provldtd
( u Me ) dOe! Dot exceed 30
( SII col 7 )
100
"5
3025 ( Part 3. ) : 1988
23 of ~25: 1964
St of 3025 : 1964
No relaxadon (I" Note) Me ... cury lOA analy.e,
No relaaatioD ( SII Nott )
fo bf! ttlc.d wb,.n pollution .1 suspected
To be Itlted "h~n pollutton is susp~· tad
No rtiaxauon 28 of 3023 : 1964 To be t~t~ "ht'n pollu'ioa .8 II.ISptC·
ted
No relaullon 3025 ( Part 37 ) . J988
No relaxation 3025 ( farll 21 ) : 1986
No rclareation ( ~" Note)
To be testtd wh~r. pollution IS sus' pected
To be tested whpn pollution i, suspected
To be tested ",heft poUudoa/plumbo-10lveDcy IS .uspeeted
15 39 of 3025: 196. To be it'$ted wb .. n
10 Methylene.blue f'xtractlon method
poUutloa is IUS
peeted
To ~ tested whrn poUution as .us· peeled
No reluahon 38 or 3025 : 1964 To be lest,d whtn pollution .1 IUSpeeled
( ""'I"ut~ )
.IIO ... ,ftl
Tabl.t
II Mo. • ..... c •• r 81:!i::". V ...... ... CMnctcdllde ( hie doct 0._'.
UMk J tIM D .. I ... bl.
(I) (2)
xxvii) PolyDuclear aroma'ic: hydro--carboDI ( ... PAH) .11. Mu
".vUi) Mlaer.10n mIll, Ma
XlIUIl) Pesticides mill. Ma
.xx) R.acUoactive mattrlall:
a) Alpha emit· ten Bq/., Mu
b) Beta emitUra pd/l t Me.
(3)
001
xxxi) AlkaUDity .,/1, 200 AI ••
xxxii) AlumtaBum (at O'OS AI ). mill, Mo
x.lm) BolOn, mIll: Ma.
U.k (-l,
May be (Arcino'~Dic:
Beyoaad dais hmil "ad.ir.t .ltj tur. aDd odour aftu cMoriaadOD take place
Toxic
Beyond tbi. limit t .. te becomm •• \I apl.PIot
Cumulath e _«eet is reported to cause demt'Dtia
(5)
0'05
0-001
0°1
600
5
(6) (7)
Gu cbroma,os,.. To be totted wheD phic me.Baod polJutioa is IUS
pected
51 of 3025: 1964
13 of 3025 : J 96f
31 of 3025 : 1964
2t of 3025 : 1964
NOTE - Atomic absorption spectrophotometric method may be used.
3.3.2 None of the generally accepted sewage trea&mcnt methods yield virus.free effluent. AJ· tbough a number of investigators have found aaivated sludge ~re ... tment to be superior to trickling filters from thi. point of view, it seems pOl'ible that chemical precipitation methods will prove to be the mOlt effective.
3.3.3 Virus can be isolated from raw wattr and from .pringa. Enterovirus, reovirus, and adenovi· rus have been found in water t the fir!ll named beinl the most resistant to chJorinatio'l. If entero .. viru1 are abient from chlorinated water. it can be assumed t hat the water is safe to drink. Some uncertainty It ill remains about the virus of infectious bepadtil, since it has not so far been isolated but in view of the morphology and resistance of enterovirus it i. Jilcely that, if they have bf'en inactivated hepadtia virus will have been inactivated also.
3.3.. An e"rnendal relationship exists hetwcen the rate 0 virus inactivation and the redox potential. A redox potential of 650 mV (mea,ured between platinum and calomel elt'ctrodts) will cause almost in.tantaneoUi inactivation of even high concentrations of virus. Such a potential can be obtained with even a low cencentration of
4
free chlorine, but only with an extremely higb concentrauon of combined chlorine. This oxida. tive inactivation may be achieved with a number of other oxidants also, for example. iodine, ozone, and potassium permanganate, but the effect of the oxida.nts will always be counterac;te<! if f~;>.duc .. iog components. which are mainly organic, :tfe
present. As a consequence, the sensitivity of'UI towards desinfectanu will depend on the .~ just as much as on the particular disinfec It used.
3.3.5 Thus, in a water in which free chJori.m! is present. active virus will generally be absent if coliform organisms are absent. In contrast, because the difference between the resistance 0.coliform organisms and of virus to disinfection by oxidants increases with increasing concentration of reducing componenu, for ex~mple. organic matter, it cannot be assumed that the absence of viable coliform organisms implie~ freedom from active virus under clrrumstan~C5 where a free chlorine residual cannot be maintained. Sedimentation and slow sand filtration in themselves may contribute to the removal of virul from water.
3.3.6 In practice, 0'5 mgtl of free chlorine for one hour is sufficient 10 inactivate virua, even :n water that was originally polluted.
.IIO ... ,ftl
Tabl.t
II Mo. • ..... c •• r 81::::-". v ...... ... CMnctcdllde ( hie doct 0._'.
UMk J tIM D .. I ... bl.
(I) (2)
xxvii) PolyDuclear aroma'ic: hydro--carboDI ( ... PAH) .11. Mu
".vUi) Mlaer.10n mIll, Ma
XlIUIl) Pesticides mill. Ma
.xx) R.acUoactive mattrlall:
a) Alpha emit· ten Bq/., Mu
b) Beta emitUra pd/l t Me.
(3)
001
xxxi) AlkaUDity .,/1, 200 AI ••
xxxii) AlumtaBum (at O'OS AI ). mill, Mo
x.lm) BolOn, mIll: Ma.
U.k (-l,
May be (Arcino'~Dic:
Beyoaad dais hmil "ad.ir.t .ltj tur. aDd odour aftu cMoriaadOD take place
Toxic
Beyond tbi. limit t .. te becomm •• \I apl.PIot
Cumulath e _«eet is reported to cause demt'Dtia
(5)
0'05
0-001
0°1
600
5
(6) (7)
Gu cbroma,os,.. To be totted wheD phic me.Baod polJutioa is IUS
pected
51 of 3025: 1964
13 of 3025 : J 96f
31 of 3025 : 1964
2t of 3025 : 1964
NOTE - Atomic absorption spectrophotometric method may be used.
3.3.2 None of the generally accepted sewage trea&mcnt methods yield virus.free effluent. AJ· tbough a number of investigators have found aaivated sludge ~re ... tment to be superior to trickling filters from thi. point of view, it seems pOl'ible that chemical precipitation methods will prove to be the mOlt effective.
3.3.3 Virus can be isolated from raw wattr and from .pringa. Enterovirus, reovirus, and adenovi· rus have been found in water t the fir!ll named beinl the most resistant to chJorinatio'l. If entero .. viru1 are abient from chlorinated water. it can be assumed t hat the water is safe to drink. Some uncertainty It ill remains about the virus of infectious bepadtil, since it has not so far been isolated but in view of the morphology and resistance of enterovirus it i. Jilcely that, if they have bf'en inactivated hepadtia virus will have been inactivated also.
3.3.. An e"rnendal relationship exists hetwcen the rate 0 virus inactivation and the redox potential. A redox potential of 650 mV (mea,ured between platinum and calomel elt'ctrodts) will cause almost in.tantaneoUi inactivation of even high concentrations of virus. Such a potential can be obtained with even a low cencentration of
4
free chlorine, but only with an extremely higb concentrauon of combined chlorine. This oxida. tive inactivation may be achieved with a number of other oxidants also, for example. iodine, ozone, and potassium permanganate, but the effect of the oxida.nts will always be counterac;te<! if f~;>.duc .. iog components. which are mainly organic, :tfe
present. As a consequence, the sensitivity of'UI towards desinfectanu will depend on the .~ just as much as on the particular disinfec It used.
3.3.5 Thus, in a water in which free chJori.m! is present. active virus will generally be absent if coliform organisms are absent. In contrast, because the difference between the resistance 0.coliform organisms and of virus to disinfection by oxidants increases with increasing concentration of reducing componenu, for ex~mple. organic matter, it cannot be assumed that the absence of viable coliform organisms implie~ freedom from active virus under clrrumstan~C5 where a free chlorine residual cannot be maintained. Sedimentation and slow sand filtration in themselves may contribute to the removal of virul from water.
3.3.6 In practice, 0'5 mgtl of free chlorine for one hour is sufficient 10 inactivate virua, even :n water that was originally polluted.
J.t BIolepallDaUudn
'.'.1 BioiolicaJ examination is of ,,·alue in deter .. miniDI the C&uaea' of objecdonable tutes and odoun in water and controlling remedial treatm~ntt, III heJping to interpret the rClulla of various chemical.nalYli •. and in explaining the causes of tlogliftl in distribution pipet and filten. I n some inltlnea. it may be of use in demonstratinlJ that water from one source hu been mixed with that from another.
3.f.2 The biological qualities of a water are of greater importallce when the supply has not undergone the conventional flocculation and filtration procellet. aince increaled I(fowth of methane-utilizing bacteria on biological slimes in pipes may then be expected, and the development of bryozoa! growths luch at Plumllttlla may cause operational difficulties.
3.f .. 3 Some of the aDima1cules found in water mains may be free-living in the water, but others such AI D,tirllfttl and .c4slllus are more or Jess firm'Y attaclled to tbe inside of the mains, AI .. thougb these animalcules are not t hemse]ves pathogenic, they may barbour pathogenic orga .. nisms or virus in their intestines, thus protecting theses patbogtns ftom deatruction by chlorine.
3.f.t Chlorination, at the dosages normally employed in waterworks,· i. ineffective against c~rtain parasites, including amoebic cysts; they can be excluded only by effective filtration or by higher chlorine doses than can be tolerated without subsequent dechlorinAtion. Amolbiasis can be conveyed by water completely free from ent~ric
1110500 I I'll
bacteria; microscopic examination after canten. 1ration is, therefore. the only safe methods of identification.
3.4.5 Strict precautions against backesyphonage and cross-connections are required if amoebic cysts are found in a distribution s),st('m containing tested water.
3. f.6 The cercaria' of schistol'omiasis can be detec. ted by similar microscopic examination, but there is, in any case, no evidence to suggest that this dilt'ate is normaUy spread through piped water supplies.
3.4.7 The cyclops vector of the embroys of Dra(fmCl4lus medi"",s;s which causes dracontiasis or Guin~a·worm disease ran be found in open wells in a numbtr of tropical areas. They are identifiable by microscopic examination. Such well supplies are frequently uled untreated, but the parasilC~ can be relatively easily excluded by sim ple physicaJ improvtments in the form of fur b!. drainage, and apron surrounds and other mrasures which pre\'cnt physical contact with the water source.
3.f.1 The drinking water shall be free from microscopic organisms such all algae, zooplankton., fla~matrs) parasites and toxin·producing organisms. An HJustrati\'(" (and not exhaustive) list is given in Annf'~ B for guidance,
f SAMPLING
Representative samples of water shall be drawn as prucribed i,n IS 1622: 1981 and IS 3l'~3 (Part 1): 1987,
ANNEX Ai
( Clawe 2 )
IS He.
1622 : 1981
3025 : 1964
3025 ( Part 1 ) : 1987
3025 ( Part 4 ) : 1983
LIST OF REFERRED INDIAN STANDARDS
Titl,
Methods of sampling and microbiological examination of water (first revision )
Methods of sampling and test ( phy§ical and chemical) for water used in industry
Methods of sampling and test (physicaJ and chemical) for water and waste w3ter : Part 1 Sampling (firJI rtvision )
Methods of sampling and lest ( physical and chemical) for water and waste water: Part 4 Colour (firJt "vision )
/S ).'e.
3025 ( Part 5 ) : 1983
31)25 ( Part 1 ) : 1984
3025 ( Part 8 ) : 1984
s
Till,
Methods of sampling and tf!st ( physical and chtmical) for water and waste water: Part 5 Odour (firsl r(:;;sion )
MClh('ds of sampling and test ( physical and (h~mical) for \\'atcr aad \\ aSle water: Part 7 Taste thruhold ( firSI revision)
~(tthod, of sampling and tt'st ( ph) sical and chemical) for water and waste water: Part 8 Tast~ rating (filst "vis;on )
J.t BIolepallDaUudn
'.'.1 BioiolicaJ examination is of ,,·alue in deter .. miniDI the C&uaea' of objecdonable tutes and odoun in water and controlling remedial treatm~ntt, III heJping to interpret the rClulla of various chemical.nalYli •. and in explaining the causes of tlogliftl in distribution pipet and filten. I n some inltlnea. it may be of use in demonstratinlJ that water from one source hu been mixed with that from another.
3.f.2 The biological qualities of a water are of greater importallce when the supply has not undergone the conventional flocculation and filtration procellet. aince increaled I(fowth of methane-utilizing bacteria on biological slimes in pipes may then be expected, and the development of bryozoa! growths luch at Plumllttlla may cause operational difficulties.
3.f .. 3 Some of the aDima1cules found in water mains may be free-living in the water, but others such AI D,tirllfttl and .c4slllus are more or Jess firm'Y attaclled to tbe inside of the mains, AI .. thougb these animalcules are not t hemse]ves pathogenic, they may barbour pathogenic orga .. nisms or virus in their intestines, thus protecting theses patbogtns ftom deatruction by chlorine.
3.f.t Chlorination, at the dosages normally employed in waterworks,· i. ineffective against c~rtain parasites, including amoebic cysts; they can be excluded only by effective filtration or by higher chlorine doses than can be tolerated without subsequent dechlorinAtion. Amolbiasis can be conveyed by water completely free from ent~ric
1110500 I I'll
bacteria; microscopic examination after canten. 1ration is, therefore. the only safe methods of identification.
3.4.5 Strict precautions against backesyphonage and cross-connections are required if amoebic cysts are found in a distribution s),st('m containing tested water.
3. f.6 The cercaria' of schistol'omiasis can be detec. ted by similar microscopic examination, but there is, in any case, no evidence to suggest that this dilt'ate is normaUy spread through piped water supplies.
3.4.7 The cyclops vector of the embroys of Dra(fmCl4lus medi"",s;s which causes dracontiasis or Guin~a·worm disease ran be found in open wells in a numbtr of tropical areas. They are identifiable by microscopic examination. Such well supplies are frequently uled untreated, but the parasilC~ can be relatively easily excluded by sim ple physicaJ improvtments in the form of fur b!. drainage, and apron surrounds and other mrasures which pre\'cnt physical contact with the water source.
3.f.1 The drinking water shall be free from microscopic organisms such all algae, zooplankton., fla~matrs) parasites and toxin·producing organisms. An HJustrati\'(" (and not exhaustive) list is given in Annf'~ B for guidance,
f SAMPLING
Representative samples of water shall be drawn as prucribed i,n IS 1622: 1981 and IS 3l'~3 (Part 1): 1987,
ANNEX Ai
( Clawe 2 )
IS He.
1622 : 1981
3025 : 1964
3025 ( Part 1 ) : 1987
3025 ( Part 4 ) : 1983
LIST OF REFERRED INDIAN STANDARDS
Titl,
Methods of sampling and microbiological examination of water (first revision )
Methods of sampling and test ( phy§ical and chemical) for water used in industry
Methods of sampling and test (physicaJ and chemical) for water and waste w3ter : Part 1 Sampling (firJI rtvision )
Methods of sampling and lest ( physical and chemical) for water and waste water: Part 4 Colour (firJt "vision )
/S ).'e.
3025 ( Part 5 ) : 1983
31)25 ( Part 1 ) : 1984
3025 ( Part 8 ) : 1984
s
Till,
Methods of sampling and tf!st ( physical and chtmical) for water and waste water: Part 5 Odour (firsl r(:;;sion )
MClh('ds of sampling and test ( physical and (h~mical) for \\'atcr aad \\ aSle water: Part 7 Taste thruhold ( firSI revision)
~(tthod, of sampling and tt'st ( ph) sical and chemical) for water and waste water: Part 8 Tast~ rating (filst "vis;on )
II 10501 •• Ml
ISNfJ, Tilll
3025 Methods of sampling and test ( Part 10 ) : 1984 (physical and chemical) for
water and waste water : Part 10 Turbidity (first 'ftvisioll )
3025 ( Part II ) : 1983
3025 ( Part 16 ) : 1984
3025 ( Part 21 ) : 1983
3025 ( Part 24 ): 1986
Methods of sampling and test ( phYlical and chemical) for water and waste water: Part 11 pH value Cfin" Ylvis;nn ) Methods of sampling and test ( physical and chemical) for water and wa~te water: Part J 6 Filterable residue (total diuolved solids ) ( first rroision ) Methods of sampling and test (physical and chemical ) for water and waste water: Part 21 Total hardness (firsl revision) Methods of sampling and test ( physical and chemical) for water and waste water : Part 24 Sulphates (first revision )
IS No. Till,
3025 Method. of umpliq ud kit ( Part 26 ) : 1986 (physical aDd cbaDicai ) for
water aDd waite water : Put 26 Chlorine residual ( fir" rmsU)II )
3025 ( Part 27 ) : 1986
3025 ( Part 32 ) : 1988
3025 ( Part 34 ) : 1988
Method, of umplins aDd tat (pbysical aad chemiad ) for water aDd wlUte water : Put 27 Cyanide (first 'Ir}is~" )
Methods or tamplinl and tat ( pbysical and chemical) for water ad wute water: Part 32 Chloride (finl ,GJinofl )
Methoda of wnpliftl and tett ( pbytical and chemical) for water and wute wat~: Part 34 NitrogeG (foil rID;;",,. )
3025 Methodl or u.mpliq and telt ( Part 37 ) : 1988 (phyaical and chemical) for
water and waste water: Part 37 AneDie (firsl ,winDra )
ANNEX B ( Clause 3.4.8 ,
ILLUSTRATIVE LIST OF MICROSCOPIC ORGANISMS WHICH MAY BE PRESENT IN WATER
ClaJJr/lCatioTl of MicrOflOpi( Urganism
( 1 )
ALGAE
Group and Namt of tIlt Organism
(2) a) CMorophycellt
Species of Corlaflrum, GomphOlphtTlUm. Murartinir.m, MougeolrQ, oOCYJliJ, EUQltrum, Setnedtsmus t Aclinaslmm, Go .. nium, Eudor;na Pandorllla. Ptdiaslrum, -<-Jgntlna, GMam)domonar, Caret,ria, Ch/Qrtlla. Ch H'JO(OceU5 t Spimg:lro t Ttl raed,nll. Chlorogonzum, Sli~todo. mum
Species of Plurdorifta, VO{/JOx, G{)mphoJphe',Utn, Slaurallru'fTI, H;dlOd;c'}on, NlltlLa
Species of Rhi-todqflium, Clado· t~'ix, A".islrodtfmur. U1IJtltru, M,CTaslt,itll, Chromul&nQ
Specits of C4/f"lIa, TribonlmfJ. Clostt,iurn, SpirogpfJ, Pa(mtlla
6
Habilal
(3)
Polluted water, im. pounded sources
Polluted waters
Clean water
Polluted waters, impounded sources
E.ltd '!I th, 0,. gaffhmJ and Signifita""
(4)
Impart colouratiol.
Produce taste and odour
Indicate .clean condition
Clog fillen and create operational difficul .. ties
II 10501 •• Ml
ISNfJ, Tilll
3025 Methods of sampling and test ( Part 10 ) : 1984 (physical and chemical) for
water and waste water : Part 10 Turbidity (first 'ftvisioll )
3025 ( Part II ) : 1983
3025 ( Part 16 ) : 1984
3025 ( Part 21 ) : 1983
3025 ( Part 24 ): 1986
Methods of sampling and test ( phYlical and chemical) for water and waste water: Part 11 pH value Cfin" Ylvis;nn ) Methods of sampling and test ( physical and chemical) for water and wa~te water: Part J 6 Filterable residue (total diuolved solids ) ( first rroision ) Methods of sampling and test (physical and chemical ) for water and waste water: Part 21 Total hardness (firsl revision) Methods of sampling and test ( physical and chemical) for water and waste water : Part 24 Sulphates (first revision )
IS No. Till,
3025 Method. of umpliq ud kit ( Part 26 ) : 1986 (physical aDd cbaDicai ) for
water aDd waite water : Put 26 Chlorine residual ( fir" rmsU)II )
3025 ( Part 27 ) : 1986
3025 ( Part 32 ) : 1988
3025 ( Part 34 ) : 1988
Method, of umplins aDd tat (pbysical aad chemiad ) for water aDd wlUte water : Put 27 Cyanide (first 'Ir}is~" )
Methods or tamplinl and tat ( pbysical and chemical) for water ad wute water: Part 32 Chloride (finl ,GJinofl )
Methoda of wnpliftl and tett ( pbytical and chemical) for water and wute wat~: Part 34 NitrogeG (foil rID;;",,. )
3025 Methodl or u.mpliq and telt ( Part 37 ) : 1988 (phyaical and chemical) for
water and waste water: Part 37 AneDie (firsl ,winDra )
ANNEX B ( Clause 3.4.8 ,
ILLUSTRATIVE LIST OF MICROSCOPIC ORGANISMS WHICH MAY BE PRESENT IN WATER
ClaJJr/lCatioTl of MicrOflOpi( Urganism
( 1 )
ALGAE
Group and Namt of tIlt Organism
(2) a) CMorophycellt
Species of Corlaflrum, GomphOlphtTlUm. Murartinir.m, MougeolrQ, oOCYJliJ, EUQltrum, Setnedtsmus t Aclinaslmm, Go .. nium, Eudor;na Pandorllla. Ptdiaslrum, -<-Jgntlna, GMam)domonar, Caret,ria, Ch/Qrtlla. Ch H'JO(OceU5 t Spimg:lro t Ttl raed,nll. Chlorogonzum, Sli~todo. mum
Species of Plurdorifta, VO{/JOx, G{)mphoJphe',Utn, Slaurallru'fTI, H;dlOd;c'}on, NlltlLa
Species of Rhi-todqflium, Clado· t~'ix, A".islrodtfmur. U1IJtltru, M,CTaslt,itll, Chromul&nQ
Specits of C4/f"lIa, TribonlmfJ. Clostt,iurn, SpirogpfJ, Pa(mtlla
6
Habilal
(3)
Polluted water, im. pounded sources
Polluted waters
Clean water
Polluted waters, impounded sources
E.ltd '!I th, 0,. gaffhmJ and Signifita""
(4)
Impart colouratiol.
Produce taste and odour
Indicate .clean condition
Clog fillen and create operational difficul .. ties
CI"SliMM"" of Mit'DIUJ1U 0, larU'JIII
(1)
Gro.., ad N."., ",", Or,.,.imt
(2) b) CYMoplt",al
Speciet of An.'JsliJ and C.11 i nd,osptrl'nl4W1
Specie. of Anabena, Plwrmidium, LynghJa. A.rlh'lOspirc, 01&;1i a .. eoria
Species of Allabtna. Anacyslis, A pllt", i ~omtIfO"
Species of Anac.1Jtis, AnabtnQ, CotloJph,rium, GIHt,i,laina, Aphani~DmtnOIl
Species of ..4nacyslu. Riuulario, OscilltlJoritl. /l.nab,"a
Species of Riuularia
Species of AgmtntUum, MicrocoltuS, Lmaanta
c) Diatoms ( Bacillariophyuo.e ) Species of Frag;[laria, Steplumo·
discus, Staulont;r Species of ASlt,iorulia. Tabtl
laria
Species of Syntdra and Fragillavia
Species of }/it:zchia, Gomphontma
Spt'cles of (,)mbtla, Syrttdra, }'t"loJira. )Vovilula, CJdolflla. Fragillaria, Dialoma, PleurO.f6-sigma
Species of Pinmularia, Surinrlla, eyrlottlla, Maidion, Co(ColJris
d) XanlhopnYelae Species of Boty)'ococcUJ
2. ?OOPLAN a) Pfolo(.Oll
KTON Amoeba, Giardia Lamblia Aralia,
DijJfugifJ. AainophrYJ
Endamoeba, HisloiY/lea
b} CilialtJ
Pa,amoClium, VOI/iallo, Cordi'· fium, Stentor, Colpid,um, Co/q; I, EupiOltS, CoJopoda J Bodo
c) Cr!J.slfltla
Bosm;nfA. Daphnia
HabitaJ
(3)
Polluted waters
Pollutt'd waten
Polluted waten. impounded sources
Pol1uted waters
Polluted waters
Calcareous watrrs and also rocks
Clean waters
Hill streams high altitude, torrential and temperate watrfS
Polluted waters
Moderately 'pollutt"d walers
Rivers and streams Impounded soure es
Hill streams, high altitudes and tern· perate walrn
. Pollted waters
Sewage arid ;lrtivaled sludge
HIghly pollu ted w at ers, sewage ano artivatt'd Sludge
Slagnant polluted wattn
II 10500 I 1911
Ell'" Dj thl O"aisms a"J SI,nijica,."
(4)
Cause water bloom and impart colour
Impart colour
Pr educe taste and odour
TO.1lin producing
Clog filters
Bores rocks and calcareous strata and causes matted growth
Indicators of purificatlon
Cause di!coJoration
Taste and odour pro .. duting clog filters
Taste and odour producing
Cause discoloration
Clog fih('r:) and ratJse op~rational difflculties
Ind icators of purification
Produces coloration
Pollution indicators
Parasitic and pat hogenic
Bacteria eaters
Indicators {'If pollution
CI"SliMM"" of Mit'DIUJ1U 0, larU'JIII
(1)
Gro.., ad N."., ",", Or,.,.imt
(2) b) CYMoplt",al
Speciet of An.'JsliJ and C.11 i nd,osptrl'nl4W1
Specie. of Anabena, Plwrmidium, LynghJa. A.rlh'lOspirc, 01&;1i a .. eoria
Species of Allabtna. Anacyslis, A pllt", i ~omtIfO"
Species of Anac.1Jtis, AnabtnQ, CotloJph,rium, GIHt,i,laina, Aphani~DmtnOIl
Species of ..4nacyslu. Riuulario, OscilltlJoritl. /l.nab,"a
Species of Riuularia
Species of AgmtntUum, MicrocoltuS, Lmaanta
c) Diatoms ( Bacillariophyuo.e ) Species of Frag;[laria, Steplumo·
discus, Staulont;r Species of ASlt,iorulia. Tabtl
laria
Species of Syntdra and Fragillavia
Species of }/it:zchia, Gomphontma
Spt'cles of (,)mbtla, Syrttdra, }'t"loJira. )Vovilula, CJdolflla. Fragillaria, Dialoma, PleurO.f6-sigma
Species of Pinmularia, Surinrlla, eyrlottlla, Maidion, Co(ColJris
d) XanlhopnYelae Species of Boty)'ococcUJ
2. ?OOPLAN a) Pfolo(.Oll
KTON Amoeba, Giardia Lamblia Aralia,
DijJfugifJ. AainophrYJ
Endamoeba, HisloiY/lea
b} CilialtJ
Pa,amoClium, VOI/iallo, Cordi'· fium, Stentor, Colpid,um, Co/q; I, EupiOltS, CoJopoda J Bodo
c) Cr!J.slfltla
Bosm;nfA. Daphnia
HabitaJ
(3)
Polluted waters
Pollutt'd waten
Polluted waten. impounded sources
Pol1uted waters
Polluted waters
Calcareous watrrs and also rocks
Clean waters
Hill streams high altitude, torrential and temperate watrfS
Polluted waters
Moderately 'pollutt"d walers
Rivers and streams Impounded soure es
Hill streams, high altitudes and tern· perate walrn
. Pollted waters
Sewage arid ;lrtivaled sludge
HIghly pollu ted w at ers, sewage ano artivatt'd Sludge
Slagnant polluted wattn
II 10500 I 1911
Ell'" Dj thl O"aisms a"J SI,nijica,."
(4)
Cause water bloom and impart colour
Impart colour
Pr educe taste and odour
TO.1lin producing
Clog filters
Bores rocks and calcareous strata and causes matted growth
Indicators of purificatlon
Cause di!coJoration
Taste and odour pro .. duting clog filters
Taste and odour producing
Cause discoloration
Clog fih('r:) and ratJse op~rational difflculties
Ind icators of purification
Produces coloration
Pollution indicators
Parasitic and pat hogenic
Bacteria eaters
Indicators {'If pollution
II 10500 I 1"1
Clasli,fietJIiorr of MjeJostfl" O,gani",.
(1)
Group ."d Nalllt of tIlt OrltJllism
(2) Cyclo;s
3. BOTf .. a) Rotijers FERS
AnuretJ, R()taria \ Pltilodina
b) Flagellatls
Ceratium, Glm?"inium. Pe,idmillm DinobryQn
E".!!lclla. Phacru
c) Mrcrtlla"tou~ O,gan;lms Sf)!)"· ges, Ilydla
Tubift:t, Ern/all f. f:""fJ1lJmid ~
d} Plllmflftll"
IJrtnUf/(I, Aullur
Habi,.,
(3)
Step wells in tropi. cal climate
Polluted and algae laden waten
Rocky strata, iron bearing and acidic waters
Polluted waters
Fresh water
Highly polluted waters, sewage and activated sludge and bottom deposits
Polluted waters
Polluted waters
(4)
Curia' host of guinea worm
Feed on algae
Impart colour and fishy tute
Impart colour
Clog filters and affect purification S) stems
Clog filters and render water unaesthetic
Produces biolugical sli· mes and causes filter operational difficultie,
Harbour pathogenic organisms
II 10500 I 1"1
Clasli,fietJIiorr of MjeJostfl" O,gani",.
(1)
Group ."d Nalllt of tIlt OrltJllism
(2) Cyclo;s
3. BOTf .. a) Rotijers FERS
AnuretJ, R()taria \ Pltilodina
b) Flagellatls
Ceratium, Glm?"inium. Pe,idmillm DinobryQn
E".!!lclla. Phacru
c) Mrcrtlla"tou~ O,gan;lms Sf)!)"· ges, Ilydla
Tubift:t, Ern/all f. f:""fJ1lJmid ~
d} Plllmflftll"
IJrtnUf/(I, Aullur
Habi,.,
(3)
Step wells in tropi. cal climate
Polluted and algae laden waten
Rocky strata, iron bearing and acidic waters
Polluted waters
Fresh water
Highly polluted waters, sewage and activated sludge and bottom deposits
Polluted waters
Polluted waters
(4)
Curia' host of guinea worm
Feed on algae
Impart colour and fishy tute
Impart colour
Clog filters and affect purification S) stems
Clog filters and render water unaesthetic
Produces biolugical sli· mes and causes filter operational difficultie,
Harbour pathogenic organisms
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~ I I I I I I I
I I I I l I I I I I I
I I I I I I
Bureau or Indian Standareb
BIS is a statutory institution established under the Bweau 0/ Indian Standards Act, 1986 to promote harmonIous development of the activities of standardization, mlrking and quality certification -of goods and attendinl to connected matters in the country.
Copyright
BIS has the copyr~t of aU its publications. No part of these publications may be reproduced in In)' ronn without the prior pennission in writing of BIS. This does not preclude the he use, in course of impiementinl the standard, of necessary details. such as symbols and sizes, type or grade desipations. Enquiries re1atinl to copyright be addressed to the Director (Publications), BIS.
Review or Indian Standards
Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of 'BIS Catalogue' and 'Standards: Monthly Additions'.
This Indian Standard has been developed from Doc : No. CHD 13 (0046).
Amendments Issued Since Publication
Amendment No. Date of Issue
BUREAU OF INDIAN STANDARDS Headquarten:
Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110 002 Telephones: 2323 0131,2323 3375,23239402 Website: www.bis.org.in
Regional Omtes:
Central: Manak Bhavsn, 9 Bahadur Shah Zafar Marg NEW DELHI 110002
Eastern: 1114, C.I.T. Scheme VII M, V.I.P. Road, Kankurgachi KOLKA T A 700 054
PRINTED BY 11m QINSItAL MANAOBR OOvPNNENT OP INDIA P'USS. NASHtK
Bureau or Indian Standareb
BIS is a statutory institution established under the Bweau 0/ Indian Standards Act, 1986 to promote harmonIous development of the activities of standardization, mlrking and quality certification -of goods and attendinl to connected matters in the country.
Copyright
BIS has the copyr~t of aU its publications. No part of these publications may be reproduced in In)' ronn without the prior pennission in writing of BIS. This does not preclude the he use, in course of impiementinl the standard, of necessary details. such as symbols and sizes, type or grade desipations. Enquiries re1atinl to copyright be addressed to the Director (Publications), BIS.
Review or Indian Standards
Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of 'BIS Catalogue' and 'Standards: Monthly Additions'.
This Indian Standard has been developed from Doc : No. CHD 13 (0046).
Amendments Issued Since Publication
Amendment No. Date of Issue
BUREAU OF INDIAN STANDARDS Headquarten:
Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110 002 Telephones: 2323 0131,2323 3375,23239402 Website: www.bis.org.in
Regional Omtes:
Central: Manak Bhavsn, 9 Bahadur Shah Zafar Marg NEW DELHI 110002
Eastern: 1114, C.I.T. Scheme VII M, V.I.P. Road, Kankurgachi KOLKA T A 700 054
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