ASTM-D4007 2008

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D4007-08 Standard Test Method for Water and Sediment in Crude Oil by the Centrifuge Method (Laboratory Procedure)

Published By	Publication Date	Number of Pages
ASTM	2008	13

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Description

1.1 This test method describes the laboratory determination of water and sediment in crude oils by means of the centrifuge procedure. This centrifuge method for determining water and sediment in crude oils is not entirely satisfactory. The amount of water detected is almost always lower than the actual water content. When a highly accurate value is required, the revised procedures for water by distillation, Test Method D 4006 (API MPMS Chapter 10.2) (Note 1), and sediment by extraction, Test Method D 473 (API MPMS Chapter 10.1), shall be used.

Note 1Test Method D 4006 (API MPMS Chapter 10.2) has been determined to be the preferred and most accurate method for the determination of water.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 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. Specific warning statements appear in 6.1, 8.3, and A1.5.4.

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PDF Pages	PDF Title
1	Scope Referenced Documents
2	Summary of Test Method Significance and Use Apparatus FIG. 1
3	Solvent Sampling Procedure TABLE 1
4	FIG. 2
5	Calculation Precision and Bias Keywords A1. PROCEDURE TO WATER-SATURATE TOLUENE A1.1 Scope A1.2 Significance FIG. 3 TABLE 2
6	A1.3 Reagents A1.4 Apparatus A1.5 Procedure
7	X1. PRECISION AND ACCURACY OF METHODS FOR DETERMINING WATER IN CRUDE OILS X1.1 Summary X1.2 Introduction X1.3 Experimental Procedure FIG. A1.1
8	X1.4 Results and Discussion TABLE X1.1 TABLE X1.2 TABLE X1.3
9	TABLE X1.4 TABLE X1.5
10	TABLE X1.6 TABLE X1.7
11	X1.5 Conclusions and Recommendations FIG. X1.1
12	TABLE X1.8 FIG. X1.2
13	FIG. X1.3 TABLE X1.9

Additional information

Standard Title	D4007-08 Standard Test Method for Water and Sediment in Crude Oil by the Centrifuge Method (Laboratory Procedure)
Published Code	ASTM
Publication Date	2008
Pages Count	13

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ASTM-D4007 2008

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