EPA Method 300.0 Anions Back Catalog number: 53420 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PN-69S 1,2,3,5,7,8-Hexachloronaphthalene, 1.2ml x 50ug/ml, nonane Price on request 10557.16-1G Indigo dye Price on request 2663.10-100-HX Toxaphene,100 µg/mL,n-hexane,1mL, Price on request