Quality Control Standard, 1000µg/ml in AC, 1ml Back Catalog number: ISO/DIS9377-4-1 Availability: In the manufacturer's stock Price on request - + Recommended DF-1348-S 1,3,4,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request AE-00049-R1-10X Carcinogenic Aryl Amine Mix, 100µg/mL in Ethyl acetate, 1ml Price on request 92096 EPA 515 Herbicides - Underivatized Price on request