LOW PRESSURE REGULATORS FOR USE WITH …

1 IS 9798: 1995 LOW PRESSURE REGULATORS FOR USE with liquefied petroleum GAS (LPG) mixtures IS 9798 DRAFT PRODUCT CERTIFICATION MANUAL FOR COMMENTS Our 22 / GZO 12 Dec 2013 Please find enclosed the following draft certification manual : LOW PRESSURE REGULATORS FOR USE with liquefied petroleum GAS (LPG) mixtures SPECIFICATION Kindly examine the draft product certification manual and forward your comments on the draft manuals.

2 Last date for comments: 30 Dec 2013. Comments, if any, may please be made in the format as given below and mailed to GZBO at the following email id: Sl. No. Name of RO / BO Clause/ Sub-clause Paragraph / Figure / Table Type of comment (General / Technical / Editorial) Comments Proposed Change Note: Separate sheets may be attached incase comments are lengthy and cannot be incorporated in the table. IS 9798: 1995 LOW PRESSURE REGULATORS FOR USE with liquefied petroleum GAS (LPG) mixtures IS 9798 PRODUCT MANUAL IS 9798: 1995 LOW PRESSURE REGULATORS FOR USE with liquefied petroleum GAS (LPG) mixtures SPECIFICATION Prepared by Kumar Animesh Sc C, GZO IS 9798.

3 1995 LOW PRESSURE REGULATORS FOR USE with liquefied petroleum GAS (LPG) mixtures IS 9798 FOREWORD The product certification scheme of bureau of Indian standards , now under bureau of Indian standards Act 1986, is in operation for more than 4 decades covering a wide variety of products. The wide experience in the area has brought a fair amount of rationalization in the certification process. This has resulted in the formulation of Operation Manual for product certification prescribing rules and practices generally applicable to all products.

4 Product related rules/guidelines are periodically issued to cover the specific requirements of different products. Still in view of widespread of certification operations, differences are found in application of these guidelines in BIS certification offices in different parts of the country. This manual has been prepared to ensure uniformity in the certification practices in respect of LOW PRESSURE REGULATORS FOR USE with liquefied petroleum GAS (LPG) mixtures SPECIFICATION as per IS 9798.

5 In this manual useful information relating to product characteristics, design aspects, limitation and constraints in its use are included. This manual takes into consideration the generally acceptable practices. IS 9798: 1995 LOW PRESSURE REGULATORS FOR USE with liquefied petroleum GAS (LPG) mixtures IS 9798 PRODUCT MANUAL IS 9798: 1995 LOW PRESSURE REGULATORS FOR USE with liquefied petroleum GAS (LPG) mixtures SPECIFICATION Section I: Product Description 1. Product Description: Low PRESSURE single or two-stage REGULATORS as well as automatic changeover device for use with liquefied petroleum gas cylinders used for various domestic and industrial purposes.

6 This standard specifies materials, construction performance and testing requirements for low PRESSURE single or two-stage REGULATORS and automatic changeover devices for use with liquefied petroleum gas mixtures in vapor phase up to kN/m2 [50 gf/cm2 or 500 mm water column (WC)] outlet PRESSURE . This product comes under list of mandatory product and Regulatory Authority of this product is The Chief Controller of Explosive (CCoE), petroleum and Explosive Safety Organization under Ministry of Commerce & Industry.

7 Being mandatory product, application is processed under normal process only. After scrutinizing the application, the drawings of the product are forwarded to CCoE for their approval. CCoE scrutinize the drawings along with other administrative detail and adhoc permission is given for joint visit at firm s premise. During the joint visit by CCoE & BIS, the firm s manufacturing and testing capabilities are verified and firm are allowed to make a trail batch as per the approved drawing during which stage wise manufacturing and testing process is observed.

8 From this lot, BIS draws samples along with the raw material samples which are sent for independent testing. The license is granted after the receipt of conforming test reports as well as permission of CCoE with approved drawing copy. 2. IS Number: IS 9798: 1995 Product Title LOW PRESSURE REGULATORS FOR USE with liquefied petroleum GAS (LPG) mixtures SPECIFICATION Number of Amendments 3 3. List of referred Indian standards for raw materials / components and test methods: IS 319 : 1989 Free cutting brass, rods and sections IS 410 : 1977 Cold rolled brass sheet, strip and foil IS 554 : 1999 Pipe threads where PRESSURE tight joints are made on the threads Dimensions, tolerances and designation IS 742 : 1981 Zinc base alloy die castings IS 2643.

9 1999 Pipe threads where PRESSURE tight joints are not made on the threads Dimensions, tolerances and designation IS 3400 (Part 2) : 1995 Methods of test for vulcanized rubbers : Part 2 Hardness IS 3400 (Part 4) : 1987 Methods of test for vulcanized rubbers : Part 4 Accelerated ageing IS 4218 (Part 1) : 2001 ISO general purpose metric screw threads : Part 1 Basic profiles IS 4218 (Part 2) : 2001 ISO general purpose metric screw threads : Part 2 General plan IS 4218 (Part 3) : 1999 ISO general purpose metric screw threads : Part 3 Basic dimensions IS 4218 (Part 4) : 2001 ISO general purpose metric screw threads : Part 4 Selected sizes for screws, bolts and nuts IS 5116 : 1996 Domestic and commercial equipment for use with LPG General requirements IS 6009 : 1970 Method for evaluation of results of accelerated corrosion test IS 6912.

10 1985 Copper and copper alloy forging stock and forgings IS 8737 : 1995 Valve fittings for use with liquefied petroleum gas (LPG) cylinders of more than 5-litre water capacity Specification IS 9798: 1995 LOW PRESSURE REGULATORS FOR USE with liquefied petroleum GAS (LPG) mixtures IS 9798 IS 9844: 1981 Specification for methods of testing resistance of electroplated and anodized aluminum coatings by neutral salt spray test. IS 14962 (Part 1) : 2001 ISO general purpose metric screw threads Tolerances : Part 1 Principles and basic detail IS 14962 (Part 2) : 2001 ISO general purpose metric screw threads Tolerances : Part 2 Limits of sizes for internal and external screw threads Medium quality IS 14962 (Part 3) : 2001 ISO general purpose metric screw threads Tolerances : Part 3 Deviations for constructional screw threads IS 14962 (Part 4).