..SCHEME OF TESTING AND INSPECTION

FOR CERTIFICATION OFCORRUGATED AND SEMI-CORRUGATED ASBESTOS CEMENT

SHEETS ACCORDING TO IS 459:1992~Incorporating Amendment No.2&3)

DOC: STI/459/7February 2012

./

1. Laboratory - A laboratory shall be maintained which shall be suitablyequipped and staffed to carry out the. different tests in accordance withthe methods given in the Indian Standards.

2. Test Record - All records of analysis and tests shall be kept in suitableforms approved by the Bureau of Indian Standards.

2.1 Copies of any records that may be required by BIS shall be madeavailable at any time on request.

2.2 Quality Control - It is recommended that, as far as possible,Statistical Quality Control(SQC) methods may be used for controlling thequality of the products as envisaged in this Scheme [See IS: 397 (Part 1)15:397 (Part-4)].

2.2.1 The test equipment are required to be brought under: calibrationcontrol, as per frequency to be decided depending upon the usage.

2.3 In addition, effort should be made to gradually introduce a QualityManagement System in accordance with IS/ISO 9001.

3. Standard Mark - The Standard Mark(s) as given in Column(l) of thefirst Schedule of the licence shall be marked on corner of each sheetprovided always that the sheet to which this mark is applied conforms toevery requirement of the specification.

3.1 If marking is done at green stage during manufacturing process, itshall be applied in such a manner so as not to affect the minimumthickness requirement. In case the sheet found failing in any of thespecified requirements, the standard mark be removed by grinding orcutting the sheet to non-standard sizes.

4. Marking - In addition, each sheet shall be indelibly marked orstamped with the following information:a) Name of the manufacturer and recognized trade-mark, if any;b) Nominal Thickness;c) Control unit; andd) Year and date of manufacture.e) Licence Number "CM/L-xxxxxxx"f) Pictorial warning signs as given in IS 12081(Part2)

1 ~

DOC: STIj459j7February 2012

~. ..

4.1 All deliveries of asbestos cement she~ts by the manufacturer shall beaccompanied by safety rules sheet as given in IS 11769 (Part 1) andpictorial warning signs giving precautionary notices as given in Fig 1 of IS12081{Part2) shall be printed on literature given to purchaser.

4.2 The manufacturer shall, upon request, furnish the purchase or hisrepresentative with a certificate that the finished product complies withthe requirement of this specification in all respects, specificallymentioning whether optional tests have been carried out or not.

s. Levels of Control - The analysis and tests, as indicated in Table 1 andat the levels of control specified therein, shall be carried out on the wholeproduction of the factory which is covered by this scheme and appropriaterecords and charts maintained in accordance with para 2 above. All theproduction which conforms to the Indian Standard and covered by thislicence shall be marked with the Standard Mark.

6. RAW MATERIALS - Routine analysis of various raw materials goinginto the manufacture of asbestos cement sheet shall be made monthly orwhenever there is a change in the source whichever is earlier andappropriate records of the analysis and of the Physical composition of themixtures shall be maintained.

6.1 Control Unit - For the purpose of this Scheme, all the cementasbestos sheets of same type and thickness made from similarcomposition in one day under similar condition shall constitute a controlunit.

6.1.1 Three sheets selected at random from a control unit shall be testedfor the requirement of load bearing capacity and shall conform to thecriterion mentioned in cl 9.3 of IS 459. Three sheets selected at randomfrom a control unit when tested for impermeability, frost cracking anddensity, the sheet shall conform to the requirements specified in cI 6.2,6.3 & 6.4 respectively of the standard. In case the factory works in threeshifts; one sample shall be drawn from each shift's production for thepurpose of sampling.

6.1.2 Should any of the samples fail to comply with the requirements laiddown in this standard, twice the original number of samples ,shall bedrawn at random and subjected to test in which failure occurred. If theresults obtained from all these repeat tests are satisfactory, the materialrepresented by the test pieces shall be considered fit for being markedwith standard mark otherwise not.

6.2 Composition of Asbestos Cement sheets shall be in accordance with cI3 of the standard.

2t;

DOC: ST1/459/7

~, February 20126.3 In case the pigments embodied in the asbestos for coloring purpose

(See CI 4 of the standard) are used, it shall be of permanent color andshall conform to relevant Indian Standards.

6.4 On the basis of tests and analysis results, the decision regardingconformity or otherwise, of a control unit to a given requirement shall bemade.

7. In respect of all other clauses of the specification the factory willmaintain appropriate controls and checks to ensure that product conformsto the various requirement of the specification.

8. Rejection - A separate record shall be maintained giving informationrelating to the rejection of asbestos cement sheets, which do not conformto the specification and the method of their disposal. Such lots, shall in nocase be stored together with that conforming to the specification.

9. Samples - The licensee shall supply, free of charge, the sample orsamples required in accordance with the Bureau of Indian Standard(Certification) Regulations from his factory or godown. BIS shall pay forthe samples taken by it from the open market.

10. Replacement - Whenever a complaint is received soon after thegoods with the Standard Mark have been purchased and used, and ifthere is adequate evidence that the goods have not b~en misused,defective goods or their components shall be replaced or repaired free ofcost by the licensee in case the complaint is proved to be genuine and thewarranty period (where applicable) has not expired. The final authority tojudge conformity of the product to the Indian Standard shall be with BIS.

10.1 In the event of any damages caused by the goods bearing theStandard Mark, or claim ,being filed by the consumers against BISStandard Mark and not "conforming to" the relevant Indian Standard,entire liability arising out of such non conforming product shall be oflicensee and BIS shall not in any way be responsible in such cases.

11. Stop Marking - The marking of the product shall be stopped underintimation to BIS, if at any time, there is some difficulty in maintainingthe conformity of the product to the specification or the testing equipmentgoes out of order. The marking may be resumed as soon as the defectsare removed under intimation to BIS. The marking of the product shall bestopped immediately if directed to do so by BIS for any reason. Themarking may then be resumed only after permission by 6IS. Theinformation regarding resumption of marking shall also be sent to BIS.

12. Production Data - The licensee shall send to BIS as per the enclosedproforma to be authenticated by a Chartered Accountant or by the

3 t;

..'DOC: STI/459/7

February 2012

manufacturer by giving an affidavit / undertaking, a statement ofquantity produced, marked and exported by him and the trade valuethereof end of each operative year of the licence.

4 ~

.-.

IS 459~1992CORRUGATED AND SEMI-CORRUGATED ASBESTOS CEMENT

SHEETSTable 1 Levels of Control

(Para 5 of the Scheme of Testing and Inspection)

DOC: STI/459/7February 2012

*Note 1- These are optional tests and shall be carried out when required by purchaserNote 2- in case of failure as per criterion given in cI 5.1.2.1 frequency shall be increasedto each control unit. Original frequency may be followed if three consecutive controlunits pass the test.

5 ~

Test Details Levels of Control Remarks

Clause Requirements Test MethodFrequency

CI. Ref. No. ofsamples

3 Fly Ash, (if 6&7 IS 3812 one Once a This test shall be carried out

used) (Part 1) month monthly or whenever there ischange in source, whicheveris earlier.

5 Dimension 5.1 IS 459 1 percent Each Records shall be maintained insubject to Control appropriate forms. In case ofminimum unit failure, all defective sheetsof 5 Nos shall be sorted out

6.1 Load Bearing 7 15:5913 Three -do- Refer 6.1.1 for criterion forCapacity conformity & repeat test in

case of failure

6.2 Impermeability 5 -do- Three -do- -do-test*

6.3 Frost Cracking 14 -do- Three Once a -do-test* week

(seenote 2)

6.4 Density* 13 -do- Three Each -do-Control

unit

7 General Visual& Each AllAppearance & templates Sheet SheetsFinish

~.

DOC: STI/459/7February 2012

PROFORMA - 1PROFORMAFOROBTAININGPRODUCTIONDETAILS

Period coveredName of LicenseeCM/LNo.

Name of Articles (s)Grade/Type/Size/Va riety/Class/Rati ng

1.1 Brand/Trade/Name(s) of BIS Certification Marked Products

2.0

2.1

3.0

3.1

3.2

4.0

4.1

5.0

5.1

6.0

IS No.

Total production of the articles(s)licensed for certification marking

Total production of the article(s)conforming to Indian Standard

Production covered with BISCertification Mark and its Valuea) Quantityb) Value (Rs.)

Brand Name used on production covered under BIS CertificationMark

Calculation of marking fee on unit-rate basis; Marking Fee per unita) Unitb) Quantity covered with BIS Certification Markc) Marking fee rounded off in whole rupees as obtained by applyingunit rates given in (a) on quantity given in (b)Note: In case a clause is not applicable, suitable remarks may begiven against it.

Quantity not covered with BIS Certification Mark. If any, and thereasons for such non-coverage

Brand Name under with non certified goods were sold

Quantity Exported with BIS Standard Mark and its value

Brand Name under which BIS Certified goods are exported

Authentication by Chartered Accountant

6 ~

'1£

',-,

DOC: STI/459/7February 2012

PROFORMA - 1PROFORMAFOROBTAININGPRODUCTIONDETAILS

Period coveredName of LicenseeCM/LNo.

Name of Articles (s)Grade/Type/S ize/Variety/ CIass/Rati ng

1.1 Brand/Trade/Name(s) of BIS Certification Marked Products

2.0

2.1

3.0

3.1

3.2

4.0

4.1

5.0

5.1

6.0

IS No.

Total production of the articles(s)licensed for certification marking

Total production of the article(s)conforming to Indian Standard

Production covered with BISCertification Mark and its Valuea) Quantityb) Value (Rs.)

Brand Name used on production covered under BIS CertificationMark

Calculation of marking fee on unit-rate basis; Marking Fee per unita) Unitb) Quantity covered with BIS Certification Markc) Marking fee rounded off in whole rupees as obtained by applyingunit rates given in (a) on quantity given in (b)Note: In case a clause is not applicable, suitable remarks may begiven against it.

Quantity not covered with BIS Certification Mark. If any, and thereasons for such non-coverage

Brand Name under with non certified goods were sold

Quantity Exported with BIS Standard Mark and its value

Brand Name under which BIS Certified goods are exported\

Authentication by Chartered Accountant

6 ~