Norm

ASTM D4047-13

Standard Test Method for Phosphorus in Lubricating Oils and Additives by Quinoline Phosphomolybdate Method

54,27

Over deze norm

Status Definitief
Aantal pagina's 5
Commissie D02.03
Gepubliceerd op 15-06-2013
Taal Engels

1.1 This test method covers the determination of 0.005 to 10.0 mass % phosphorus in unused lubricating oil and additive concentrates. There is no reason to doubt its applicability to filtered, used lubricating oils, but no systematic study of this application has been made.

1.2 The test method is applicable to samples containing any of the phosphorus compounds in normal use.

Note 1This test method extends the scope of the previous version of IP 149 and replaces IP 148 and the previous version of IP 149 as a referee method.

1.3 This test method is free from most interferences because the high insolubility of the quinoline phosphomolybdate precipitate leads to constant composition and freedom from most adsorbed or occluded impurities, especially from cations which would otherwise interfere in the subsequent titration of the precipitate.

1.4 Barium, calcium, magnesium, zinc, iron, aluminum, alkali salts, citric acid and citrates, chromium up to 18 times the phosphorus content, and titanium up to 3.5 times do not interfere with the test method.

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

1.6 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 6.9.

Details

ICS-code 75.100
Nederlandse titel Standard Test Method for Phosphorus in Lubricating Oils and Additives by Quinoline Phosphomolybdate Method
Engelse titel Standard Test Method for Phosphorus in Lubricating Oils and Additives by Quinoline Phosphomolybdate Method

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