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 VHG-CLOIL-1P-100 Chlorine, 10000µg/g (1.00wt%) in Mineral Oil,100ml Price on request 52145A Method 200.8/1638/1640 Internal Standard, 10µg/ml in 2%-HNO3, 4x25ml Price on request 59927 Fluoride (F-), 10µg/mL in Water, 500ml Price on request