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ASTM Cannabis Committee seeds standard for lime-based hempcrete

Sources: ASTM International, West Conshohocken, Pa.; CP staff

ASTM Committee D37 on Cannabis is eyeing development of standards to cover the use of hempcrete, a bio-composite mixture of hemp hurds and lime, in construction and insulation. Work on the proposed WK70549 and WK70550 standards entails, respectively: review of current ASTM International fire resistance and R-value measurement methods’ appropriateness for hempcrete, and establishing unbiased R-value and fire resistance properties for hempcrete insulation materials. 

Committee D37 members see WK70549 and WK70550 supporting final standards suiting manufacturers, laboratories, architects, contractors, and regulatory bodies, especially permitting offices. Committee contact, staff liaison: Robert Morgan, 610/832-9732, [email protected]