CLP Pesticide Lab Control Standard Back Catalog number: 21061 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended NK-ST-B2 Native PCDD/PCDF Solution/Mixture, 1.2ml, nonane Price on request 70893 Methyl-3,5-Dichlorobenzoate Price on request 38165 CWA TRPH Price on request