EPA Method 526 Standard Back Catalog number: 93199 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2972.14-100-IO 2,4'-DDT-d8, 100µg/ml in Isooctane, 1ml Price on request 2025.6-1ML Pentachlorobenzene, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 608-93-5 Price on request O257503 Octinoxate-d3, 2,5mg Price on request