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Standard Test Method for Phosphorus in Lubricating Oils and Additives by Quinoline Phosphomolybdate Method
Automatische name übersetzung:
Standard Test Method for Phosphor in Schmieröle und Additive von Chinoliniummolybdatophosphat Methode
NORM herausgegeben am 15.6.2013
Bezeichnung normen: ASTM D4047-13
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 15.6.2013
SKU: NS-25840
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
additives, lubricating oils, phosphomolybdate, phosphorous, ICS Number Code 75.100 (Lubricants, industrial oils and related products)
Significance and Use | ||||||
4.1 Knowledge of the phosphorus content, and thus the phosphorus-containing additives, in a lubricating oil or additive can be used to predict performance characteristics. |
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1. Scope | ||||||
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. 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.
IP?148 Test Method for Phosphorous in
Lubricating Oils and Additives Available from Energy Institute, 61
New Cavendish St., London, WIG 7AR, U.K.,
http://www.energyinst.org.uk. Standard Practice for Applying
Statistical Quality Assurance and Control Charting Techniques to
Evaluate Analytical Measurement System Performance (Includes all
amendments and changes 12/12/2023). Standard Specification for Reagent
Water |
Historisch
15.6.2013
Historisch
1.5.2014
Historisch
1.11.2012
Historisch
1.5.2007
Historisch
1.5.2012
Historisch
1.5.2008
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