BS ISO 22621-5-2010 最大操作压力达到并包括2 MPa(20 bar)的气体燃料供应用塑料管道系统.聚酰胺(PA).系统目的的适合性
Plastics piping systems for the supply of gaseous fuels for maximum operating pressures up to and including 2 MPa (20 bar) - Polyamide (PA) - Fitness for purpose of the system