Multi-Element Check Standard Back Catalog number: 59001 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94132 BTEX Standard Price on request 675244 Paraoxon-methyl, 100 µg/ml, Acetonitrile, 5ml Price on request 10628.12-50-T 1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin Price on request