物理安全检测
ISO 13968塑料管道系统.热塑性塑料管.环挠性的测定
ISO 13968塑料管道系统.热塑性塑料管.环挠性的测定—标准名称
ISO 13968 Plastics piping and ducting systems - Thermoplastics pipes - Determination of ring flexibility
ISO 13968塑料管道系统.热塑性塑料管.环挠性的测定
ISO 13968塑料管道系统.热塑性塑料管.环挠性的测定—适用范围
Scope：
This International Standard specifies a method for testing the ring flexibility of a thermoplastics pipe having a circular cross-section. The method enables determination of the deflection, and necessary force, at which physical damage, if any, occurs within the specified diametric deflection.
ISO 13968塑料管道系统.热塑性塑料管.环挠性的测定—引用文件
ISO 9969, Thermoplastics pipes ⎯ Determination of ring stiffness
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