Gaseous hydrogen. Fuelling stations - Valves1 Scope This document provides the requirements and test methods for the safety performance of high pressure gas valves that are used in gaseous hydrogen stations of up to the H70 designation. This document covers the following gas valves: check valve; excess flow valve; flow control valve; hose breakaway device; manual valve; pressure safety valve; shut off valve.

This European Standard partially supersedes BS EN 50014:1993

Guidelines for further treatment (including heat treatment) in fabrication

The digital interface specified in BS EN 62300 uses wide-band POF that includes both the multi-layer type and the graded index type

maintenance and testing of watermist systems with automatic nozzles installed in residential occupancies not exceeding 20m in height and domestic occupancies

• Bed base impactor

together with their collection and properties

which are advantageous in reducing the self-weight of structures and also have better thermal insulation than normal-weight concrete

ISO 5577 defines the terms used in ultrasonic non-destructive testing and forms a common basis for standards and general use

Producers and suppliers of fuels

connection data

The standard specifies the composition

Non-alloy and alloy case-hardening steels