pH 4.0 Standard @ 25°C Back Catalog number: 59468 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 15900-3320-100AN5 Metolachlor, 100µg/ml in Acetonitrile, 5ml Price on request 59986 Metal Mix #2 Price on request DF-123468-S 1,2,3,4,6,8-Hexachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request