ASTM-D1091:2011 Edition

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D1091-11 Standard Test Methods for Phosphorus in Lubricating Oils and Additives

Published By	Publication Date	Number of Pages
ASTM	2011	9

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Category: ASTM

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Description

1.1 These test methods cover the determination of phosphorus in unused lubricating oils and lubricating oil additives and their concentrates. The test methods are not restricted with respect to the type of phosphorus compounds that may be present for example, trivalent or pentavalent phosphorus compounds, phosphines, phosphates, phosphonates, phosphorus sulfides, and so forth since all are quantitatively converted to an aqueous solution of orthophosphate ion by oxidation of the sample during the course of analysis.

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

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.

7.1 This test method covers a procedure for removal of organic material and subsequent conversion of phosphorus to phosphate ion in samples of unused lubricating oils, lubricating oil additives, and their concentrates.

12.1 This test method covers determination of total phosphorus in concentrations of less than two mass % (see Note 6), calculated on the basis of the original test specimen, in samples treated by the acid-oxidation procedure described in Sections 7-11.

Note 6For phosphorus concentrations greater than or equal to two mass %, see Sections 19-25.

19.1 This test method covers the determination of total phosphorus in concentrations of 2 mass % or more, (see Note 10), calculated on the basis of the original sample, in samples treated by the acid-oxidation procedure described in Sections 7-11.

Note 10For phosphorus concentrations less than 2 mass %, see Sections 12-18.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Summary of Test Method Significance and Use Purity of Reagents
2	Sampling Scope Summary of Test Method Apparatus Reagents Procedure TABLE 1
3	Scope Summary of Test Method Apparatus Reagents Calibration and Standardization
4	Procedure Calculation Scope Summary of Test Method Apparatus
5	Reagents Procedure for Samples Containing No Metals Other than Alkali Metals Procedure for Samples Containing Metals Other than Alkali Metals
6	Calculation Quality Control (QC) Reporting Precision and Bias Keywords FIG. 1
7	FIG. 2 FIG. 3
8	X1. QUALITY CONTROL X1.1 X1.2 X1.3 X1.4 X1.5 FIG. 4