Total Organic Water Supply (WS) (Kit) Back Catalog number: 38087 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 41001 EPA Method 508/608 Pesticide Standard Price on request 3143.18-K-IO Octadecanoic acid (Stearic), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 57-11-4 Price on request 73574 Benzyldimethyldodecylammonium chloride Price on request