Tungsten (W) Back Catalog number: 57074 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8978.39-K-T 3-Chloro-1,2-propandiol-distearate-d5 Price on request DF-IS-H40 Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane Price on request 70134 Dichlorodifluoromethane, 1000µg/ml in MeOH, 1ml Price on request