and Reference Guide - Insulation Contractors Supply
Type II—Nonreflective Facing Class A—FS<25 ... Class 9—1200°F (cancelled; no replacement) Form D Type III Class 12—450°F (cancelled; use ASTM C 547)
Crude Perlite Published
Perlite - USGS. The estimated amount ... EXTRAORDINARY [P ART II—SEC. 3(i)] 1. Apatite and Rock Phosphate: (i) Apatite (ii) Rock Phosphate. ... Perlite Replacement ...