CONOSTAN 1000ppm Standard, W, 50g Back Catalog number: SCP150-100-745 Manufacturer: SCP SCIENCE Availability: In the manufacturer's stock Price on request - + Recommended 54506 Sulfate (SO4-2), 1000µg/ml in Water, 500ml Price on request VHG-PCRH-100 Cr @ 1000 µg/mL in 5% HCl, 100ml Price on request 50843 Sulfide (S), 1000µg/mL in Tr. NaOH / Water, 3 x 20ml Price on request