Interference Standard 1 Back Catalog number: 52039 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 56050 Tin (Sn) Price on request PN-48S 2,3,6,7-Tetrachloronaphthalene, 1.2ml x 50ug/ml, nonane Price on request MBDE-MXFS Mass-Labelled PBDE Surrogate Stock, 1.2ml, toluene Price on request