EPA Method 524.3 - Surrogate Standard Back Catalog number: 95489 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 55213 Medical Marijuana Heavy Metals Price on request 95662 Pesticide Mix #1 Price on request 680326 2,6-Diethylaniline, 100 µg/ml, Methanol, 1ml Price on request