Drinking Water Standards Kit Back Catalog number: 53074 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended CA14950020 Metazachlor ethane sulfonic acid (ESA), 10mg Price on request 19162 EPA Method 525.2 - PAH Standard Price on request H293905 Hexahydrocoumarin, 250mg Price on request