ASTM C35Full Name ASTM C35 – Standard Specification for Inorganic Aggregates for Use in Gypsum PlasterScope This specification covers perlite, vermiculite, natural and manufactured sand for use as gypsum plaster aggregates.Keywords aggregates; gypsum plaster; inorganic; manufactured sand; natural sand; perlite; vermiculiteResourcesASTM International Website: ASTM C35 Need more info? Please submit the following form. We will contact you within one business day. How did you hear about us? Please select an option from the listSearch EngineOnline AdsClient RelationshipReferralOther