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Letter to NRCA members regarding ASTM C 1289

letter to members


ASTM C 1289; rigid board polyiso;

The American Society for Testing and Materials (ASTM) has just published a revised and updated edition of its product standard for rigid board, faced, polyisocyanurate insulation. This standard is designated as ASTM C1289, "Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board." NRCA has obtained copyright permission from ASTM to provide you, as an NRCA member, with a copy of this new standard; a copy is enclosed for your review.

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