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Method for Determination of Total Acid Number in Petroleum Products by Semi-micro Colour Indicator Titration. by BSB is a reference work available to read on EtoBox.

What is Method for Determination of Total Acid Number in Petroleum Products by Semi-micro Colour Indicator Titration. about?

This standard BS 7393:1990 Method for determination of total acid number in petroleum products by semi-micro colour indicator titration is classified in these ICS categories:. 75.080 Petroleum products in general. 1.1. This International Standard specifies a semi-micro colour indicator titration method for the determination of acidic constituents in new or used petroleum products and lubricants soluble in mixtures of toluene and isopropyl alcohol, or capable of existing as suspensions in such mixtures. The method is especially intended for applications in which the amount of sample available to be analyzed is too small to allow accurate analysis by ISO 6619 or ISO 6618. It is applicable to the determination of acids having dissociation constants in water larger than 10. 9. . Extremely weak acids having dissociation constants smaller than 10. 9. do not interfere. Salts titrate if their hydrolysis constants are larger than 10. 9. . 1.2. This method may be used to indicate relative changes in total acid number that occur in an oil during use under oxidizing conditions. Although the titration is made under definite equilibrium conditions, the method does not measure an absolute acidic

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Author

BSB

Publisher

BSI British Standards Institution

Published

1999

Language

EN

ISBN

9780580192524

Category

reference