Standard Reference Black 8 Series (SRB8)
ASTM标准参比炭黑SRB8-B
ASTM标准参比炭黑SRB8-C
ASTM标准参比炭黑SRB8-D
ASTM标准参比炭黑SRB8-E
ASTM标准参比炭黑SRB8-F
ASTM标准参比炭黑SRB8-G