BUREAU OF INDIAN STANDARDS ( CENTRAL MARKS DEPARTMENT-III ) Our Ref: CMD-III/16:

Transcription

1 BUREAU OF INDIAN STANDARDS ( CENTRAL MARKS DEPARTMENT-III ) Our Ref: CMD-III/16: Subject: Implementation of Amendment No 2, April 2007 to IS 4985: 2000 Unplasticized PVC Pipes for potable water supplies and revised STI Doc: STI/4985/11. Amendment No 2 April 2007 to IS 4985:2000 For Unplasticized PVC Pipes for potable water supplies has been published (Copy enclosed).in view of the above amendment STI Doc: STI/4985/10 September 2006 have been revised as Doc: STI/4985/11. It has been decided to implement this amendment and revised STI Doc: STI/4985/11 with effect from 1 st. ROs/BOs are requested to inform the licensees of IS 4985:2000 under their jurisdiction about implementation of above amendment and revised STI. Sd/- (NAWAL KISHORE) Scientist B (CMD-III) Encl: As above. Sc.F& H (CMD-III) Sd/- DDGM Sd/- All ROs/BOs, BIS LABS c.c. CMD-1 CED for arranging gazette notification.

2 SCHEME OF TESTING AND INSPECTION FOR CERTIFICATION OF UNPLASTICIZED PVC PIPES FOR POTABLE WATER SUPPLIES ACCORDING TO IS 4985:2000 (Third Revision) (Incorporating Amendment no. 1 & 2) 1. LABORATORY A laboratory shall be maintained which shall be suitably equipped and staffed where different tests given in the specification shall be carried out in accordance with the methods given in the specification. 2. TEST RECORDS - All records of tests, inspection and calibration shall be kept in suitable forms approved by the Bureau. 2.1 All testing apparatus/measuring instruments shall be periodically checked and calibrated and records of such checks/calibration shall be maintained. 2.2 Copies of any records and other connected papers that may be required by the Bureau shall be made available at any time on request. 3. QUALITY CONTROL It is recommended that, as far as possible, Statistical Quality Control (SQC) methods may be used for controlling the quality of the product during production as envisaged in this Scheme [See IS 397(Part 1):2003, to IS 397 (Part 4):2003]. 3.1 In addition, effort should be made to gradually introduce a Quality Management System in accordance with IS/ISO 9001: STANDARD MARK The Pipe shall carry the standard mark as given in column 1 of the first schedule of the licence in the form of a transfix label. The mark may also be applied by engraving in such a manner that it does not impair the strength of the pipe in any way. Marking may also be done by screen printing. 4.1 OTHER MARKING - In addition, each pipe shall be clearly and indelibly marked in colour using ink/paint as per at intervals of not more than 3 meter Alternatively inkjet printing in any contrasting colour can also be used for marking at intervals of not more than 3 meter with the following: a) The manufacturer s name or trade mark b) Outside diameter. c) Class of pipe and pressure rating d) Batch or lot no. e) The word plumbing in the case of plumbing pipes and f) Licence No. (CM/L ) 2

3 4.2 The information according to 13.1 shall be marked in color as indicated below for different classes of pipes (in the case of indelible marking by paint/ink). In the case of inkjet printing, the pipes shall also be provided near the end with a circumferential color band as indicated below for different classes of pipes to identify the class of pipe. Class of Pipe Colour Class 1 Red Class 2 Blue Class 3 Green Class 4 Brown Class 5 Yellow Class 6 Black Plumbing Pipe Pink 5. LEVELS OF CONTROL - The tests, as indicated in Table 1 attached and at the levels of control specified therein, shall be carried out on the whole production of the factory which is covered by this scheme and appropriate records and charts maintained in accordance with paragraph 2.0 above. All the production which conforms to the Indian Standards and covered by the licence shall be marked with certification mark of the Bureau. 5.1 CONTROL UNIT- A Control unit is defined as a continuous extrusion run of one size and class of pipe from one extrusion compound up to a maximum of 48 (forty eight) hours duration. 5.2 RAW MATERIAL- Only those additives shall be added which are needed to facilitate the manufacture of the pipe and the production of sound and durable pipes of good surface finish, mechanical strength and opacity under conditions of use. None of these additions shall produce toxic hazard or impair the strength of the pipes. Manufacturers own rework material (Complying with IS 4985, Cl. 6.2) is permissible. The quantity of rework material used is to be declared by the manufacturer. No other rework material shall be used. 5.3 In case of failure in any of the tests twice the no. of samples be tested for that requirement. If a further failure occurs, the entire lot shall not be marked. 5.4 In respect of all other clauses of the specification and at all stages of production, the factory shall maintain appropriate controls and checks to ensure that their product conforms to various requirements of the specification. 6. REJECTIONS A separate record shall be maintained giving information relating to the rejection of the production not conforming to the requirements of the specification and the method of its disposal. Such material shall in no circumstances be stored together with that conforming to the specification. 7. SAMPLES The licensee shall supply, free of charge, the samples required in accordance with the Bureau of Indian Standards (Certification) Regulations, 1988, as subsequently amended, from the factory or godowns. The Bureau shall pay for the samples taken by it from the open market. 3

4 8. REPLACEMENT Whenever a complaint is received soon after the goods with Standard Marks have been purchased and used, and if there is adequate evidence that the goods have not been misused, defective goods or their components are replaced or repaired free of cost by the licensee in case the complaint is proved to be genuine and the warranty period (where applicable) has not expired. The final authority to judge the conformity of the product to the Indian Standard shall be with the Bureau. The firm shall have own complaint investigation system as per IS/ISO In the event of any damages caused by the goods bearing the Standard Mark, or Claim being filed by the Consumers against BIS Standard Mark and not Conforming to the relevant Indian Standard, entire liability arising out of such non conforming product shall be of licensee and BIS shall not in any way be responsible in such cases. 9. STOP MARKING The marking of the product shall be stopped under intimation to the Bureau if, at any time, there is some difficulty in maintaining the conformity of their product to the specification, or the testing equipment goes out of order. The marking may be resumed as soon as the defects are removed under intimation to Bureau. 9.1 The marking of the product shall be stopped immediately if directed to do so by Bureau for any reason. The marking may then be resumed only after permission by the Bureau. The information regarding resumption of markings shall also be sent to the Bureau. 10. PRODUCTION DATA The licensee shall send to BIS as per the enclosed Proforma-1 to be authenticated by a Chartered Accountant, a statement of quantity produced, marked and exported by him and the trade value thereof at the end of each operative year of the licence. Table 1 4

5 Cl. IS 4985:2000 UNPLATICIZED PVC PIPES FOR POTABLE WATER SUPPLIES TABLE 1 LEVELS OF CONTROL (Clause 5 of the Scheme of Testing and Inspection) TEST DETAILS Requirement Test Methods Clause Reference 6 COMPOSITION a) Unplasticized polyvinyl chloride IS 4985: 2000 IS b) Additives 3.7 IS VCM Content & IS 4985: 2000 Annex A No. of samples LEVELS OF CONTROL Frequency Remarks One Each consignment One sample of each consignment shall be tested for ascertaining conformity unless the same is accompanied by test certificate IS PVC resin (K value) IS 4669 One Once in three months 7 Dimensions Diameters & Table Wall thickness 7.1.2& Table Mean OD, OD at any Point & thickness of plumbing Pipe Length: a) Plain ended Pipe Fig 2(a) b) Socketed Pipe for Fig 2(b) elestomeric Sealing Jointing c) Socketed Cement jointing IS 4985: 2000 IS (Pt.1) IS 4985: 2000 One Once in three months 10 Each Control unit 10 -do- IS (Pt.1) Table 2 IS 4985: do- Fig 2(c) IS 4985: do- A test report or conformity certificate may be obtained from the manufacturer for the VCM content and K value resin being used. In case this certificate is not available, test may be carried out at an independent lab. 5

6 IS 4985:2000 UNPLATICIZED PVC PIPES FOR POTABLE WATER SUPPLIES TABLE 1 LEVELS OF CONTROL (Clause 5 of the Scheme of Testing and Inspection) TEST DETAILS LEVELS OF CONTROL Cl. Requirement Test Methods No. of Frequency Remarks Clause Reference samples 7.2 Dimension of sockets Sockets for solvent Cement jointing Table 3 Fig.3 IS 4985: Each control unit Sockets for elastometic sealing Table 4 Fig.4 IS 4985: Each control unit ring joints 9 Pipe ends 9.1, 9.2 & IS 4985: Each control Fig 6 8 Sealing ring 8 IS 5382 (Type1to Type 6) 10.1 Visual appearance 10.1 & IS 4985:2000 adequate Opacity IS (Pt.3) One (thinnest wall section) 10.3 Effect on water IS (Pt.4) & IS 12235(Pt.10) unit 10 Each Consignment Three Once in three months Once in six months (The smallest size of pipe produced ) No testing is required if the Sealing ring is ISI marked Tests shall also be done when the formulation is changed In a year, production from all the machines shall be covered. Further testing shall be done when there is change in formulation, composition or method of manufacture. In a period of 12 months the production of each class shall be covered Reversion test IS 12235(Pt.5/ Section 1 & 2) Three Each control unit Should any test piece fail, the batch shall be retested using further six samples which shall be selected at random. All six samples shall meet the requirements of the standard. Otherwise the control unit shall not be marked. 6

7 IS 4985:2000 UNPLATICIZED PVC PIPES FOR POTABLE WATER SUPPLIES TABLE 1 LEVELS OF CONTROL (Clause 5 of the Scheme of Testing and Inspection) TEST DETAILS Cl. Requirement Test Methods Clause Reference 10.5 Vicat softening 10.5 IS 4985:2000 temperature IS 12235(Part 2) Col. 3 Table 14 of IS 4985: Density 10.6 IS 4985: Sulphated Ash content 11 Mechanical Properties Hydrostatic characteristic 11.1 & i) Type test Table 6 & Table 7 of IS 4985: 2000 IS (Part 14) Col. 3 Table 14 of IS 4985:2000 Annex. B & Col. 3 Table 15 of IS 4985:2000 IS (Pt.8/ Sec 1) IS (Pt.8/ Sec 4) No. of samples LEVELS OF CONTROL Frequency Remarks one Once in three months or earlier (No. of test Specimens as specified in test method) one Each Control In case of failure, control unit be rejected. one One Every 5th control unit Once in three months -- One size for each class of pipe shall be tested at least once in 1 ½ years. ii) Acceptance test -do- One Each control unit Acceptance test for plumbing pipe shall be as per cl of IS 4985: Resistance to external blow at 0 C Annex C IS 4985:2000 Sufficien t to complete 25 blows. In case of even single failure, further testing shall be continue d as per Table 11 and Fig 9 of Is 4985: 2000 Each control unit I Initially a minimum of 25 blows shall be made. In case of no failure, the control unit is deemed to have passed the test. In case of four or more failures, the control unit is treated as rejected. The test shall be continued further if one or two or three failuresoccur till the results fall into either region A or region C of Table 11 to arrive at a decision for acceptance or rejection respectively. 2 It is necessary to have achieved at least 25 blows without failure before the test is discontinued. 7

8 PERFORMA - 1 PROFORMA FOR OBTAINING PRODUCTION DETAILS Period covered Name of Licensee CM/L No. Name of Articles (s) Grade/Type/Size/Variety/Class/Rating IS No. 1.1 Brand/Trade/Name(s) of BIS Certification Marked Products 2.0 Total production of the articles(s) licensed for certification marking 2.1 Total production of the article(s) conforming to Indian Standard 3.0 Production covered with BIS Certification Mark and its value a) Quantity b) Value (Rs.) 3.1 Brand Name used on production covered under BIS Certification Mark 3.2 Calculation of marking fee on unit-rate basis; Marking Fee per unit a) Unit b) Quantity covered with BIS Certification Mark c) Marking fee rounded off in whole rupees as obtained by applying unit rates given in (a) on quantity given in (b) Note: Incase a clause is not applicable, suitable remarks may be given against it. 8

9 4.0 Quantity not covered with BIS Certification Mark. If any, and the reasons for such non-coverage 4.1 Brand Name under with non certified goods were sold 5.0 Quantity Exported with BIS Standard Mark and its value 5.1 Brand Name under which BIS Certified goods are exported 6.0 Authentication by Chartered Accountant 9

10 AMENDMENT NO.2 APRIL 2007 TO IS 4985 : 2000 UNPLASTICIZED PVC PIPES, FOR POT ABLE WATER SUPPLIES SPECIFICATION ( Third Revision) (Page 1, clause 3.13, line 1) - Substitute 'six' for 'four'. (Page 10, clause 11.1, line 4) - Substitute 'temperatures, duration and test pressures' for 'temperatures and duration'. (Page 10, clauses 13.1, , and ) - Substitute the following for the existing: 13.1 Each pipe shall be clearly and indelibly marked in colour using ink/paint as per at intervals of not more than 3 meters. Alternatively, inkjet printing in any contrasting colour can also be used for marking at intervals of not more than 3 metres. The markings shall show the following: a) Manufacturer's name or trade-mark, b) Outside diameter, c) Class of pipe and pressure rating, d) Batch or lot number, and e) The word plumbing in the case of plumbing pipes The information according to 13.1 shall be marked in colour as indicated below for different classes of pipes (in the case of indelible marking by ink/paint). In the case of inkjet printing, the pipes shall also be pr~vided near the end with a circumferential colour band as indicated below for different classes of pipes to identify the class of pipe: 10