Rubber materials for seals and diaphragms for gas appliances and gas equipment1 Scope This document specifies requirements and associated test methods for rubber materials used in gas installations, gas equipment and gas appliances in contact with 1st, 2nd and 3rd family combustible gases as classified in EN 437: 2018, additionally LPG, bio methane and bio LPG, in the same quality, are covered. It also establishes a classification based on temperature range and hardness. This document is applicable to materials from which

BS EN 62740 only covers posterior analyses

dissolved gases or liquefied petroleum gas (LPG)

and the shape and size of the test piece

as well as of other plastics and non-plastics materials

Specific users will be:

flexibility and heat shock

A trustworthy system supporting server signing (TW4S) is a system that offers remote digital signatures as a service

which provides information about specific implementation characteristics of these protocols in order to support the choice of a certain communications profile for the specific requirements of a space mission

5 Abbreviated terms

f) which are declared in the installation instructions to be either a “condensing” boiler or a “low temperature boiler” or a “standard boiler”

Complete names are given in Annex C

qualitative and semiquantitative screening method for vapour-phase organic compounds (volatile and some semi-volatile) released from vehicle trim materials under simulated real-use conditions using micro-scale test chambers