ISO 3771:1994
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Petroleum products — Determination of base number — Perchloric acid potentiometric titration method
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
08-09-2018
English
04-08-1994
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Cancels and replaces the first edition (1977). Establishes a method for the determination of basic constituents in petroleum products by potentiometric titration with perchloric acid in glacial acetic acid. Two variations of the method are described, using different titration solvent volumes and test sample masses. The ranges of base number values for which precision values for the method have been established are: unused oils - base numbers from 6 to 70; additive concentrates - base numbers from 5 to 300; used oils on which were employed the forward titrations - base numbers from 5 to 27.
| DocumentType |
Standard
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| Pages |
8
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| PublisherName |
International Organization for Standardization
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| Status |
Withdrawn
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| Supersedes |
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