This document describes a method for determining the specific gravity of tubing, fabricated from polytetrafluoroethylene, after a controlled heating and cooling cycle. The specific gravity obtained by this method is a measure of relative molecular weight of the resin. The measure, termed relative specific gravity (RSG), increases with decreasing molecular weight.
SAE ARP 1153A-1970由美国机动车工程师协会 US-SAE 发布于 1970-02。
SAE ARP 1153A-1970 在中国标准分类中归属于: V21 管件、卡箍、密封件,在国际标准分类中归属于: 49.080 航空航天用流体系统和零部件。
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