ASTM C 1050 : 1991
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Standard Specification for Rigid Cellular Polystyrene-Cellulosic Fiber Composite Roof Insulation (Withdrawn 1999)
11-10-1999
12-31-2010
CONTAINED IN VOL 04.06 1999 Specifies composition and physical properties of insulating boards of wood fiber board laminated to rigid cellular polystyrene board, flat or tapered, used above structural roof decks for thermal insulation and base for roofing.
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