1.1 This specification covers the types, physical properties, and dimensions of unfaced, preformed rigid cellular polyisocyanurate plastic material intended for use as thermal insulation on surfaces from 297°F (183°C) to 300°F (150°
ASTM
Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
STD-61946
2007
2007-06-01
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