PSA-GCB-Mix 14 Back Catalog number: 674997 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 52118 EPA Method 300.0 Anions Mix A, 1000 µg/mL in Water, 1ml Price on request 30115 EPA Method 551.1 Performance Check Sol’n Price on request 1222.16-1G Di-n-octylsulfide, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 2690-08-6 Price on request