Sulfate (SO4-2), 1000µg/ml in Water, 500ml Back Catalog number: 54506 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended E1368-100ML FE1368 Bismuth ICP 10mg/L ,100LPF Price on request E1267-100ML FE1267Manganese ICP 10g/L ,100LPF Price on request E4007-100ML FE4007 Barium for AAS 1g/L ,100LPF Price on request