Diesel Fuel Markers Back Catalog number: 94780 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-I Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane Price on request 674596 Fensulfothion-oxon, 100 µg/ml, Acetonitrile, 5ml Price on request 59628 pH 9.0 Standard @ 25°C Price on request