Interference Standard 3 Back Catalog number: 52050 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 92949 EPA Method 508 Pesticide Standard Price on request 92280 EPA Method 8081A Pesticides QC Mix Price on request 57048 Cadmium (Cd), 1000µg/ml in 2%-HNO3/Water, 100ml Price on request