Appendix IX Semi-Volatiles Mix #13 Back Catalog number: 82708 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA15970100CY Pentachlorophenol 13C6, 100 ng/µl, 1.1ml Price on request PCB-SS-A20 Mass-Labelled PCB Solution , 1.2ml x 20ng/ml, nonane Price on request NG-17604-1G Propionic acid sodium salt, 1g Price on request