EPA Method 633.1 Analytes Back Catalog number: 40049 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 62232 Aroclor 1232 in Transformer Oil Price on request 680942 Oxytetracycline hydrochloride, 10 µg/ml, Methanol Price on request 31782 EPA Method 507/1656 Nitrogen Phosphorus Price on request