EPA Method 531.1 - Analytes Back Catalog number: 30042R Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93918 Pesticide Mix #1 Price on request 676442 Carazolol, 10mg Price on request S-4675-ASS-10AC ISO 18857-2 4-tert-Octylphenol, Internal standard, assorted in acetone 1446.14 4-tert-Octylphenol 1 µg/mL 3689.16 4-tert-Octylphenol monoethoxylate 1 µg/mL 3753.18 4-tert-Octylphenol diethoxylate 1 µg/mL 3754.20 4-tert-Octylphenol triethoxylate 1 µg/ Price on request