ISO 4437-4:2015 specifies the characteristics of valves made from polyethylene (PE) for piping systems in the field of the supply of gaseous fuels.
It also specifies the test parameters for the test methods referred to in this part of ISO 4437.
Status: PublishedPublication date: 2015-04
Edition: 1Number of pages: 16
Technical Committee: ISO/TC 138/SC 7 Valves and auxiliary equipment of plastics materials
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A standard is reviewed every 5 years
Stage: 90.92 (To be revised)
Will be replaced byUnder development