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Scope

1.1 This test method covers the direct determination of water in the range of 10 to 25 000 mg/kg entrained water in petroleum products and hydrocarbons using automated instrumentation. This test method also covers the indirect analysis of water thermally removed from samples and swept with dry inert gas into the Karl Fisher titration cell. Mercaptan, sulfide (S^- or H₂S), sulfur, and other compounds are known to interfere with this test method (see Section 5).

1.2 This test method is intended for use with commercially available coulometric Karl Fischer reagents and for the determination of water in additives, lube oils, base oils, automatic transmission fluids, hydrocarbon solvents, and other petroleum products. By proper choice of the sample size, this test method may be used for the determination of water from mg/kg to percent level concentrations.

1.3 Values stated in SI units are to be regarded as the standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

coulometric titration; Karl Fischer titration; water; ICS Number Code 71.040.50 (Physicochemical methods of analysis); 75.080 (Petroleum products in general); 75.100 (Lubricants, industrial oils and related products)

To find similar documents by ASTM Volume:

05.02 (Petroleum Products and Lubricants (II): D3711 - D6122)

05.03 (Petroleum Products and Lubricants (III): D6138 - D6971)

To find similar documents by classification:

71.040.50 (Physicochemical methods of analysis Including spectrophotometric and chromatographic analysis)

75.080 (Petroleum products in general)

75.100 (Lubricants, industrial oils and related products Including mineral oils, fluids for metal working and for temporary protection against corrosion Lubrication systems, see 21.260 Insulating oils, see 29.035.40)

To find similar documents by Federal Supply Class Code:

FSC 91GP (Fuels, Lubricants, Oils, and Waxes -- General)

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