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ASTM D5019是用于單層屋頂薄膜的增強CSM板(氯磺化聚乙烯)的標準規范：

本規范規定了擬用于單層屋頂薄膜的、用氯磺化聚乙烯(CSM)制造的增強非硫化聚合物板空氣曝露測試程序。

ASTM D5019英文簡介

1. Scope

1.1 This specification covers reinforced non-vulcanized polymeric sheet made from chlorosulfonated polyethylene (CSM) and poly-isobutylene (PIB) intended for use as a single-ply roof membrane exposed to the weather. The sheet shall be reinforced with fiber or fabric.

1.1.1 The polymers used in these sheets have thermoplastic characteristics at time of installation. The chlorosulfonated polyethylene will vulcanize in place under ambient conditions on a roof.