GSO ISO 14828:2012 玻璃增强热塑性管道 潮湿条件下环松弛硬化有效持续时间的估算和湿松弛系数的计算
Glass-reinforced thermosetting plastics (GRP) pipes - Determination of the long-term specific ring relaxation stiffness under wet conditions and calculation of the wet relaxation factor
This International Standard specifies a method for determining both the long-term specific ring relaxation stiffness and the wet relaxation factor for glass-reinforced thermosetting plastics (GRP) pipes.