MODUK - DEF STAN 81-4
Valves, Container, Gas
|Publication Date:||1 January 1992|
This Standard specifies requirements for a range of valves, listed within tables A, B and C, used for transportable gas containers. Valve requirements specified include:
(a) their materials of construction;
(b) their testing, including the quality control measures to be taken during manufacture;
(c) their identification marking.