EPA Method 507 - Performance Check Solution Back Catalog number: 19130 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679813 Sulfameter, 100 µg/ml, Methanol, 1ml Price on request 10908.12-100-IO 2,3,3',4,4',5-Hexachlorobiphenyl-2',6,6'-d3,100 µg/mL,isooctane,1mL Price on request 53224 CLP ILM 03.0 Interferents A Price on request