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ASTM Standard C591-21 Standard specification for unfaced preformed rigid cellular polyisocyanurate thermal insulation

Publication Year

2021

Document Status

Withdrawn

Abstract

Specifies types, physical properties, and dimensions of unfaced, preformed rigid cellular polyurethane modified polyisocyanurate plastic material for use as thermal insulation on surfaces.

Document History

Superseded by ASTM C591-22.

Publisher Information

American Society for Testing and Materials

ASTM International offers global access to standards development for over 140 participating countries.

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