EPA Method 8141 / 1618 Pesticide Mix B Back Catalog number: 91398 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675367 4-Epitetracycline hydrochloride, 50mg Price on request 31131 2-Chlorotoluene Price on request 1112.20-10MG 6-Nitrobenzo[a]pyrene-d11,neat,neat,10mg, Price on request