Multi-Element Check Standard Back Catalog number: 59001 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 30130 EPA Method 502/524 Phase V Additionals Price on request 59588 Conductance @ 20°C [3,000 µmho/cm] Price on request 675761 Heptachlor endo-epoxide, 10.0 µg/ml, Ethyl acetat Price on request