95.99 Withdrawal of Standard Nov 10, 2022
ISO
ISO/TC 138/SC 7 Valves and auxiliary equipment of plastics materials
International Standard
83.140.30 Plastics pipes and fittings for non fluid use | 75.200 Petroleum products and natural gas handling equipment
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.
WITHDRAWN
ISO 10933:1997
WITHDRAWN
ISO 4437-4:2015
95.99
Withdrawal of Standard
Nov 10, 2022
PUBLISHED
ISO 4437-4:2022