本标准规定了用于确定玻璃增强热固性塑料（GRP）管道的纵向拉伸性能的三种测试方法。可以确定的性质是: - 纵向拉伸强度; - 极限伸长率; - 纵向弹性模量。方法A用于测试件从管道切割的纵向条带。方法B使用管道整个横截面的指定长度。方法C使用从管壁部分切割的切口板

This standard specifies three test methods for determining the longitudinal tensile properties of pipes of glass-reinforced thermosetting plastics (GRP). The properties which can be determined are: - the longitudinal tensile strength; - the percentage ultimate elongation; - the longitudinal modulus of elasticity. Method A uses for the test piece(s) a longitudinal strip cut from a pipe. Method B uses a specified length of the full cross section of the pipe. Method C uses a notched plate cut from a pipe wall section.