Acid Surrogate Standard Back Catalog number: 21005 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended BB-31 2,4',5-Tribromobiphenyl, 1.2ml x 50ug/ml, nonane Price on request 10908.12-100-IO 2,3,3',4,4',5-Hexachlorobiphenyl-2',6,6'-d3,100 µg/mL,isooctane,1mL Price on request DPE-15 4,4'-Dichlorodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request