WS Drinking Water Kit Back Catalog number: 38235 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0170.13-500-IO 1,3,7-Trimethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2131-38-6 Price on request 675107 Sodium p-n-tridecylbenzenesulfonate, 100 µg/ml, M Price on request 8479.10-K-IOX5 1-Naphthol-d7, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 124251-84-9 Price on request