Photometric determination of sulfate. Features: • By the addition of barium salts, sulfate forms hardly soluble Barium sulfate. The generated turbidity is measured photometrically at 585 nm. • Due to the patented reagent mixture (DE 102017200310 B3) a more homogenious precipitate is formed. This allows for more precise results with significantly lower fluctuation rates. • The photometric determination is according to DIN ISO 15923-1:2014-07. Specifications: • REF: 985062 • Type: tube test 0-62 • Range: 20 - 200 mg/L SO42- • Sufficient for: 20 determinations • Shelf life: 3 years • Sea water suitability: no