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

ASTM-D1091 - 2011 R16 EDITION - CURRENT -- See the following: ASTM-D809
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Standard Test Methods for Phosphorus in Lubricating Oils and Additives




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.


additives; gravimetric; lubricating oils; phosphorus; photometric;; ICS Number Code 75.100 (Lubricants, industrial oils and related products)

To find similar documents by ASTM Volume:

05.01 (Petroleum Products and Lubricants (I): D56 - D3710)

To find similar documents by classification:

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)

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Document Number


Revision Level

2011 R16 EDITION



Modification Type


Publication Date

May 15, 2016

Document Type

Test Method

Page Count

9 pages

Committee Number