EPA Method 508 Standard Back Catalog number: 92358 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90949 Methylene chloride-d2 Price on request 674910 Alanycarb, 100mg Price on request MBP-157 2,3,3',4,4',5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request