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ISO 5275:1979

Aromatic hydrocarbons — Test for presence of mercaptans (thiols) — Doctor test ISO 5275:1979

Publication date:   Oct 1, 1979

95.99 Withdrawal of Standard   Jun 18, 2003

General information

95.99 Withdrawal of Standard   Jun 18, 2003

ISO

ISO/TC 28 Petroleum and related products, fuels and lubricants from natural or synthetic sources

International Standard

71.080.15   Aromatic hydrocarbons

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Scope

Specifies the detection of thioalcohols. Hydrogen sulphide can also be detected by the test. Inapplicable in the presence of only traces of peroxides. Shaking of a test portion with sodium plumbite solution (Doctor solution) and observation of the mixture. From its appearence, the presence of thioalcohols, hydrogen sulphide, peroxides or elemental sulphur can be deduced. Confirmation by the addition of sulphur, shaking and observation of the appearance of the final mixture.

Life cycle

NOW

WITHDRAWN
ISO 5275:1979
95.99 Withdrawal of Standard
Jun 18, 2003

REVISED BY

PUBLISHED
ISO 5275:2003