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है”ह”ह

IS 3759 (B) (1987): Specification for blades, skin grafting[MHD 19: Immuno-Biological Diagnostic Kits]

© BIS 2012

B U R E A U O F I N D I A N S T A N D A R D SMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

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Indian StandardSPECIFICATION FOR BLADES, SKIN GRAFTING

( First Revision )

;wMhlh@UDC 615.472.3 : 616.089.843

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Indian StandardSPECIFICATION FOR BLADES, SKIN GRAFTING

( First Revision )

1 SCOPE

Specifies the requirements of skin grafting blades usedin skin grafting knives and dermatomes.

2 SHAPE AND DIMENSIONS

As shown in Fig. 1.

1 dk;Z {k s = k1 dk; Z {k s = k1 dk; Z {k s = k1 dk; Z {k s = k1 dk; Z {k s = k

Ropk jksi.k pkdqvksa vkSj peZ esa iz;qDr Ropk jksi.k CysMksa dhvis{kk,¡ fofufnZ"V djrk gSA

2 vkdkj ,o a vk;ke2 vkdkj ,o a vk;ke2 vkdkj ,o a vk;ke2 vkdkj ,o a vk;ke2 vkdkj ,o a vk;ke

vkÑfr 1 esa fn[kk, x, vuqlkjA

3 lkex z h3 lkex z h3 lkex z h3 lkex z h3 lkex z h

^lkekU; bathfu;fjax iz;ksxukFkZ ;k fuEufyf[kr lfEe{k.kksas osQlkFk mPp dkcZu LVhy osQ fy, dksYM+ jksYM+ ehfM+;e] mPpdkcZu ,oa vYi fefJr LVhy dh fof'kf"V* vkbZ,l 7226 % 1974ds vfHkuke 120lhvkj35 dh vuq:irk ds fy, mPp dkcZuvYi fefJr LVhy%

dkcZu 1-20 μ 1-30 izfr'kreSaxuhT+k 0-20 μ 0-45 izfr'krlhfydkWu 0-10 μ 0-35 izfr'kriQkWliQksjl 0-035 izfr'kr] vfèkdredkcZu 0-025 izfr'kr] vfèkdre

3 MATERIAL

High carbon low alloy steel conforming to designation120Cr35 of IS 7226 : 1974 ‘Specification for cold-rolled medium, high carbon and low alloy steel stripfor general engineering purposes’ or high carbon steelwith the following composition:

Carbon 1.20 — 1.30 percentManganese 0.20 — 0.45 percentSilicon 0.10 — 0.35 percentPhosphorus 0.035 percent, MaxSulphur 0.025 percent, Max

lHkh vk;ke fefyehVjksa esa A

vkÑfr 1 Ropk jksi.k ds fy;s CysM

All dimensions in millimetres.FIG. 1 BLADE, SKIN GRAFTING

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2

vkbZ,l@IS 3759 : 1987

4 HARDNESS

The blades shall be hardened and tempered to 700-800 HV.

5 MANUFACTURE, WORKMANSHIP ANDFINISH

5.1 The blades shall be sharpened along the entire lengthof the cutting edge and shall include an angle of 16 ± 1°.

5.2 The blade shall be perfectly straight and the centresof the holes shall be equidistant from the cutting edge.

5.3 The cutting edge shall be perfectly straight, uniformthroughout, surgically sharp and free from feathers,nicks, high spots and waviness.

5.4 The blades shall be highly polished and free fromany blemishes. All edges, except the cutting edge, shallbe rounded.

6 TESTS

6.1 The cutting edge of the blade shall be examinedunder a magnification of at least 60X in two directionsalong and perpendicular to the plane of the cutting edge,and it shall not reveal any feather edge, nicks, highspots, waviness or undulation.

6.2 The blade shall be tested by shaving a piece ofchamois leather with moderate pressure at least fivetimes. They shall cut easily and cleanly along the entirelength of the cutting edge. On completion of the test,the blade shall show no sign of damage, when examinedin accordance with 6.1.

7 MARKING

7.1 Each blade shall be legibly and indelibly marked withthe manufacturers’ name, initials, or recognized trade-mark.

7.2 Certification Marking — Details available withthe Bureau of Indian Standards.

8 PACKING

8.1 The blades shall be coated with a thin film of asolution containing corrosion inhibitors or plastipeel.Blades shall be individually wrapped in wax paper andpacked in cardboard cartons or plastic cases so that thecutting edge does not get damaged.

9 SAMPLING

Sampling procedure and acceptance criteria forconformity shall be as agreed to between the purchaserand the supplier. A recommended scheme for the sameis given in Appendix A.

4 dBk sjrk4 dBk sjrk4 dBk sjrk4 dBk sjrk4 dBk sjrk

CysMksa dks 700&800 ,poh rd dBksj ,oa VSEij fd;ktk,xkA

5 fuek Z.k] dkjhxjh ,oa fiQfu'k5 fuek Z.k] dkjhxjh ,oa fiQfu'k5 fuek Z.k] dkjhxjh ,oa fiQfu'k5 fuek Z.k] dkjhxjh ,oa fiQfu'k5 fuek Z.k] dkjhxjh ,oa fiQfu'k

5-1 5-1 5-1 5-1 5-1 CysMksa dh dfVax èkkj dh iwjh yEckbZ dks rhoz djsaxs rFkk16 ± 1° dk dks.k lfEefyr djsaxsA

5-25-25-25-25-2 CysM iw.kZr% lhèkk jgsxk rFkk Nsnksa osQ dsanz dfVax èkkj lscjkcj dh nwjh ij jgsaxsA

5-35-35-35-35-3 dfVax èkkj iw.kZr% lhèkh] gj rjiQ ls ,d :i lftZdyhrhoz ,oa iryh] [kk¡ps] gkbZ LikWV ,oa ygjjfgr jgsaxhA

5-45-45-45-45-4 CysM vPNh rjg ds ikWfy'k fd, gq, rFkk nks"k jfgr gksaAdfVax èkkjksa dks NksM+dj] lHkh èkkjsa xksykdkj jgsaxhA

6 ijh{k.k6 ijh{k.k6 ijh{k.k6 ijh{k.k6 ijh{k.k

6-16-16-16-16-1 CysMksa dh dfVax èkkj dks Iysu djus ds fy, yEckbZ ,oayEcor~ nksuksa fn'kkvksa esa de ls de 60X ds vkoèkZu dsrgr~ ijhf{kr fd;k tk,xk rFkk blesa dksbZ iryh èkkj] [kk¡ps]gkbZ LikWV] ygjh fn[kkbZ u nsaA

6-2 6-2 6-2 6-2 6-2 CysM dks lk¡Hkj ds peM+s ds VqdM+s ij de ls de ik¡pckjh larqfyr ncko ls 'kso djds ifjf{kr fd;k tk,xkA osdfVax èkkj dh iwjh yEckbZ ds lkFk vklkuh ls vkSj liQkbZ lsdkVsaxsA ijh{k.k dh iw.kZrk ij] tc 6-16-16-16-16-1 ds vuqlkj tk¡p gksxhrks CysM dksbZ uqdlku ugha fn[kk,xkA

7 e qgjk adu7 eqgjk adu7 eqgjk adu7 eqgjk adu7 eqgjk adu

7-1 7-1 7-1 7-1 7-1 izR;sd CysM ij fuekZrk dk uke] vkèkk{kj] ;k ekU;O;kikj&fpÉ Li"Vr% ,oa LFkk;h :i ls eqgjkafdr fd;ktk,xkA

7-27-27-27-27-2 izek.ku eqgjkadu — fooj.k Hkkjrh; ekud C;wjks dsikl miyCèk gSA

8 i S fd ax8 i S fd ax8 i S fd ax8 i S fd ax8 i S fd ax

8-18-18-18-18-1 CysMksa dks la{kkj.k vojksèkdksa ;k IykfLVihy okys lksY;w'kudh iryh ijr ls ysfir fd;k tk,xkA izR;sd CysM dks oSDlokys isijksa esa yisVk tk,xk rFkk dkMZcksMZ dkWVZuksa ;k IykfLVddslksa eas iSd fd;k tk,xk rkfd dfVax èkkj [kjkc u gksA

9 ue wu s9 ue wu s9 ue wu s9 ue wu s9 ue wu s

uewus izfØ;k ,oa vuq:irk ekun.Mksa dh Lohdk;Zrk [kjhnkj,oa forjd ds chp ;Fkk lgefr ds vuqlkj gksxhA blds fy,vuq'kkflr ;kstuk vuqcaèk d esa nh xbZ gSA

3

vkbZ,l@IS 3759 : 1987

ddddd&&&&&1 yk WV1 yk WV1 yk WV1 yk WV1 yk WV

ddddd&1-1 1-1 1-1 1-1 1-1 ,d ijs"k.k esa ,d gh izdkj ds iSVuZ ,oa vk;keksa okyslHkh CysMksa dks ,d lkFk 50 ls vukfèkd ,d ykWV cukus dsfy, lewg esa j[kk tk,xkA bl fof'kf"V dh vis{kkvksa ds fy,izR;sd ykWV dks ifjf{kr fd;k tk,xkA

ddddd&&&&&2 uewuk s a dk Lrj ,oa vuq:irk dk ekin.M2 uewuk s a dk Lrj ,oa vuq:irk dk ekin.M2 uewuk s a dk Lrj ,oa vuq:irk dk ekin.M2 uewuk s a dk Lrj ,oa vuq:irk dk ekin.M2 uewuk s a dk Lrj ,oa vuq:irk dk ekin.M

ddddd&2-12-12-12-12-1 ykWV ls vkB CysMksa dk jS.M+e uEcj Vscyksa dk iz;ksxdjds jS.Me esa p;u fd;k tk, (vkbZ,l 4905 % 1968jS.Me uewuksa ds fy, i¼fr;k¡) rFkk vkèkkj ,oa vk;keksa (22222)]lkexzh (33333)] dkjhxjh ,oa fiQfu'k (55555)] eqgjkadu (77777) ,oaiSfdax (88888)] dh vis{kkvksa dk ijh{k.k fd;k tk,xkA dksbZCysM mDr vis{kkvksa esa ls ,d ;k vfèkd vis{kkvksa dks iwjkdjus esa pwdrk gS rks mls nks"kiw.kZ ekuk tk,xkA ;fn bl [kaM+ds rgr dksbZ ykWV LohÑr gksxk rks izR;sd CysM uewus esavuqeR; gksxkA

ddddd&&&&&2-22-22-22-22-2 ddddd&&&&&2-12-12-12-12-1 ds vuqlkj tks ykWV larqf"Vijd ik;k tk,xkrks mls vU; vis{kkvksa ds fy, ijhf{kr fd;k tk,xkA bliz;kstu ds fy, rhu CysMksa dk uewuk fy;k tk,xk vkSj [kk¡ps(5-35-35-35-35-3 ,oa 6-16-16-16-16-1) ,oa dk;Zdkfjrk vis{kkvksa (6-26-26-26-26-2) ds fy,ijhf{kr fd;k tk,xkA ,d CysM dk dBksjrk (44444) ds fy,ijh{k.k fd;k tk,xkA ;fn bl [kaM+ ds rgr ykWV Lohdkjfd;k tkuk gS rks lHkh uewus lacafèkr vis{kk,a ikl djsaA

A-1 LOT

A-1.1 In a consignment, all the blades of the samepattern and dimensions shall be grouped together toconstitute a lot, not exceeding 50. Each lot shall betested for the requirements of this specification.

A-2 SCALE OF SAMPLING AND CRITERIA FORCONFORMITY

A-2.1 Eight blades from the lot shall be selected atrandom by using random number tables (IS 4905 : 1968Methods for random sampling) and tested for therequirements of shape and dimensions (2), material (3),workmanship and finish (5), marking (7), and packing(8). Any blade failing to meet one or more of the aboverequirements shall be termed defective. No defectivesshall be permitted in the sample if the lot is to beaccepted under this clause.

A-2.2 The lot which has been found satisfactory asin A-2.1 shall be tested for other requirements. For thispurpose three blades shall be sampled and tested forfeathers, nicks, etc (5.3 and 6.1) and performancerequirements (6.2). One blade shall be tested forhardness (4). All samples shall pass the respectiverequirements if the lot is to be accepted under thisclause.

vuqcaèk dvuqcaèk dvuqcaèk dvuqcaèk dvuqcaèk d([kaM+ 9)

uewuk ;kstuk ,oa vuq:irk ds fy, ekin.Muewuk ;kstuk ,oa vuq:irk ds fy, ekin.Muewuk ;kstuk ,oa vuq:irk ds fy, ekin.Muewuk ;kstuk ,oa vuq:irk ds fy, ekin.Muewuk ;kstuk ,oa vuq:irk ds fy, ekin.M

APPENDIX A(Clause 9)

SAMPLING PLAN AND CRITERIA FOR CONFORMITY

fuoZpu esa fookn dh fLFkfr esa bl ekud dk vaxzsT+kh ikB gh ekU; gksxkAIn case of dispute in interpretation, English version of this standard shall be authentic.

EXPLANATORY NOTE

In this revised standard, the interchangeable dimensions have been modified in order to meet the universalinterchangeability, besides some other dimensions have also been modified. Additional material requirementconforming to IS 7226 : 1974 has also been specified.

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bl iqujhf{kr ekud esa oSf'od Lrj ij fofues;rk dks iwjk djus osQ fy, fofue; lacaèkh vk;keksa dks la'kksfèkr fd;k x;k gSAblosQ vfrfjDr oqQN vU; vk;keksa dks Hkh la'kksfèkr fd;k x;k gSA vkbZ,l 7226 % 1974 ds vuq:i vfrfjDr lkexzh vis{kkHkh fofufnZ"V dh xbZ gSA

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Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewedperiodically; a standard along with amendments is reaffirmed when such review indicates that no changes areneeded; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standardsshould 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.: CPDC 11 (1953).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

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Published by BIS, New Delhi