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ASTM D4928

Standard Test Methods for Water in Crude Oils by Coulometric Karl Fischer Titration

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Organization: ASTM
Publication Date: 10 September 2000
Status: inactive
Page Count: 5
scope:

This test method covers the determination of water in the range from 0.02 to 5 mass or volume % in crude oils. Mercaptan (RSH) and sulfide (S or H2S) as sulfur are known to interfere with this test method, but at levels of less than 500 μg/g (ppm), the interference from these compounds is insignificant (see Section 5).

This test method can be used to determine water in the 0.005 to 0.02 mass % range, but the effects of the mercaptan and sulfide interference at these levels has not been determined.

This test method is intended for use with standard commercially available coulometric Karl Fischer reagent.

The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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. For specific hazard statements, see Section 7.

Document History

December 1, 2012
Standard Test Method for Water in Crude Oils by Coulometric Karl Fischer Titration
This test method covers the determination of water in the range from 0.02 to 5.00 mass or volume % in crude oils. Mercaptan (RSH) and sulfide (S− or H2S) as sulfur are known to interfere with this...
December 1, 2012
Standard Test Method for Water in Crude Oils by Coulometric Karl Fischer Titration
This test method covers the determination of water in the range from 0.02 to 5.00 mass or volume % in crude oils. Mercaptan (RSH) and sulfide (S− or H2S) as sulfur are known to interfere with this...
June 1, 2011
Standard Test Method for Water in Crude Oils by Coulometric Karl Fischer Titration
This test method covers the determination of water in the range from 0.02 to 5 mass or volume % in crude oils. Mercaptan (RSH) and sulfide (S− or H2S) as sulfur are known to interfere with this test...
September 10, 2000
Standard Test Methods for Water in Crude Oils by Coulometric Karl Fischer Titration
1. Scope 1.1 This test method covers the determination of water in the range from 0.02 to 5 mass or volume % in crude oils. Mercaptan (RSH) and sulfide (S- or H2S) as sulfur are known to interfere...
September 10, 2000
Standard Test Methods for Water in Crude Oils by Coulometric Karl Fischer Titration
This test method covers the determination of water in the range from 0.02 to 5 mass or volume % in crude oils. Mercaptan (RSH) and sulfide (S- or H(2)S) as sulfur are known to interfere with this...
ASTM D4928
September 10, 2000
Standard Test Methods for Water in Crude Oils by Coulometric Karl Fischer Titration
This test method covers the determination of water in the range from 0.02 to 5 mass or volume % in crude oils. Mercaptan (RSH) and sulfide (S− or H2S) as sulfur are known to interfere with this test...
September 10, 2000
Standard Test Methods for Water in Crude Oils by Coulometric Karl Fischer Titration
This test method covers the determination of water in the range from 0.02 to 5 mass or volume % in crude oils. Mercaptan (RSH) and sulfide (S− or H2S) as sulfur are known to interfere with this test...
December 10, 1996
Standard Test Methods for Water in Crude Oils by Coulometric Karl Fischer Titration
1. Scope 1.1 This test method covers the determination of water in the range from 0.02 to 5 mass % in crude oils. Mercaptan (RSH) and sulfide (S= and H2S) sulfur are known to interfere with this test...
January 1, 1989
Standard Test Methods for Water in Crude Oils by Coulometric Karl Fischer Titration (API MPMS Chapter 10.7) (IP Designation: 386/88)
A description is not available for this item.

References

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