美国材料试验学会熔点

ASTM

PVSI；Methylsilicone Rubber with Phenyl and Vinyl Group(ASTM)

HR；Brtyl Rubber,Isprene Isobutylene Copolymer(ASTM)

IR；Isoprene Rubber,Cis 1,4-Polyisoprene Synthetic Natural Rubber(ASTM,BS)

American Standard of Testing Materials(ASTM)

ASTM octane number (research method)

ASTM specifications

ASTM appendix number ASTM