WHO 532 Standard Back Catalog number: 94154 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PN-1S 1-Chloronaphthalene, 1.2mL x 50ug/mL, nonane Price on request 79048 d-BHC Price on request 684367 Diflufenican, 100 µg/ml, Acetonitrile, 5ml Price on request