EPA Method 630/630.1 Stock Solution #1 Back Catalog number: 40024 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11786.10 1,2,3,5,7,8-Hexachloronaphthalene,,,, Price on request 11630-100G 2,2′-Azobis(2-methylpropionitrile), 100g Price on request 59374 Anions Mix #2 Price on request