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 E1348-100ML FE1348 Antimony ICP 100mg/L ,100LPF Price on request E1034-100ML FE1034Magnesium ICP 1g/L ,100LPF Price on request E4021-500ML FE4021 Cesium for AAS 1g/L ,500LPF Price on request