EPA Method 642 - Analytes Back Catalog number: 40057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679732 D3-2-Methyl-4-isothiazolin-3-one hydrochloride, 10 Price on request 71468 2,2',4,6,6'-Pentamethyl-3-heptene (cis,trans) Price on request 93986 WS Disinfection By-Products - Cal Check 4 Price on request