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  • BSI
    BS 2000-149:1993 Methods of test for petroleum and its products - Petroleum products. Lubricating oils and additives. Determination of phosphorus content. Quinoline phosphomolybdate method
    Edition: 1993
    $266.02
    / user per year

Description of BS 2000-149:1993 1993

1.1 This International Standard specifies a quinoline phosphomolybdate method for the determination of the phosphorus content of unused lubricating oil and additive concentrates. The method is applicable to products containing any of the phosphorus compounds in normal use and having phosphorus contents between 0,005 and 10,0 % (m/m).

NOTE – 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 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.

NOTE – Barium, calcium, magnesium, zinc, iron, aluminium, 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 method.



Identical with IP 149/93.

Standard NumberBS 2000-149:1993
TitleMethods of test for petroleum and its products - Petroleum products. Lubricating oils and additives. Determination of phosphorus content. Quinoline phosphomolybdate method
StatusConfirmed
Publication Date1993-02-28
ReplacesBS 7032:1988
Identical National Standard OfISO 4265
DescriptorsTest equipment, Petroleum products, Volumetric analysis, Precipitation methods, Lubricating oils, Reproducibility, Phosphorus, Formulae (mathematics), Oils, Petroleum, Quantitative analysis, Chemical analysis and testing, Lubricant additives, Determination of content, Lubricants
ICS75.100 Lubricants, industrial oils and related products
CommitteePTI/13
ISBN0 580 41695 X
PublisherBSI
Pages6

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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