EPA Method 525.1 Standard Back Catalog number: 94572 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91862 Surrogate Standard Price on request 679308 Dimethyldioctadecylammonium chloride, 25mg Price on request 52163A ILM 05.3 ICP-AES ICV Mix, Varied µg/mL in 5%-HNO3 / Water, 4x25ml Price on request