EPA Method 551.1 Internal Standard Back Catalog number: 30103 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MBP-153 2,2',4,4',5,5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request MI526-100 Powder reagents for free chlorine (100 tests). Contains: 100 sachets Price on request BDE-60 2,3,4,4'-Tetrabromodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request