Multi-Elements Mix Back Catalog number: 50155 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PN-74S 1,2,3,4,5,6,8-Heptachloronaphthalene, 1.2mL x 50ug/mL, nonane Price on request 30114 EPA Method 551.1 Performance Check Soln Price on request GA09000978IO EN 12766/CEN EN 61619 PCB Mix, 10µg/mL in Isooctane, 1ml Price on request