ARP1153A - Method for Determining Relative Specific Gravity Polytetrafluoroethylene Tubing

Details Document Number: ARP1153A Revision Number: A Title Method for Determining Relative Specific Gravity Polytetrafluoroethylene Tubing Scope 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 (see 2.3).

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