WS Organic Drinking Water Kit Back Catalog number: 55162 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71407 Nonatriacontane (C39) Price on request 59211 Anion Mix #2 Price on request DF-IS-A200 Mass-Labelled PCDD Internal Standard Solution, 1.2ml x 200ng/ml , nonane Price on request