IS/ISO 11114 : Part 2 : 2021 Gas Cylinders - Compatibility of Cylinder and Valve Materials with Gas Contents - Part 2 Non-Metallic Materials

ICS 23.020.35

MED 16

NATIONAL FOREWORD

This Indian Standard (Part 2) (Second Revision) which is identical with ISO 11114-2 : 2021 'Gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part 2: Non-metallic materials' published by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Gas Cylinders Sectional Committee and approval of the Mechanical Engineering Division Council.

This standard was first published in 2013 and revised in 2015. The main changes compared with the previous edition are as follows:

a) New materials were added in Table 1; and

b) Table 2, dedicated to the compatibility for liners, was added.

Under the general title 'Gas cylinders - Compatibility of cylinder and valve materials with gas contents', the standard is in six parts, other parts are as following:

Part 1 Metallic materials

Part 3 Autogenous ignition test for non-metallic materials in oxygen atmosphere

Part 4 Test methods for selecting steels resistant to hydrogen embrittlement

Part 5 Test methods for evaluating plastic liners (under process)

Part 6 Oxygen pressure surge testing (under process)

The text of ISO standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminologies and conventions are, however, not identical to those used in Indian Standard. Attention is particularly drawn to the following:

a) Wherever the words 'International Standard' appear, referring to this standard, they should be read as 'Indian Standard'; and

b) Comma (,) has been used as a decimal marker, while in Indian Standards, the current practice is to use a point (.) as the decimal marker.