Multi-Element Calibration Standard-4 Back Catalog number: 50013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8712.12-5MG 2,2',3,3',4,4',5',6-Octachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 42740-50-1 Price on request MI504-100 Reagent kit for 100 tests (Free & total chlorine) Contains: 1 x 20 mL DPD1, 1 x 20mL DPD2, 1 x 20mL DPD3 Price on request 674997 PSA-GCB-Mix 14 Price on request