Calibration Standard Mix 5 Back Catalog number: 53047 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 62254 Aroclor 1254 in Transformer Oil Price on request 92798 Aroclor 1248 Price on request MDF-1234789 1,2,3,4,7,8,9-Heptachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene Price on request