Reference number
ISO 5275:1979
© ISO 2024
ISO 5275:1979
Aromatic hydrocarbons — Test for presence of mercaptans (thiols) — Doctor test
Edition 1
1979-10
Withdrawn
Withdrawn (Edition 1, 1979)

Abstract

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.

General information

  • Status
     : Withdrawn
    Publication date
     : 1979-10
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 2
  • Technical Committee :
    ISO/TC 28
    ICS :
    71.080.15 
  • RSS updates

Life cycle

Got a question?

Check out our Help and Support

  2. Store
  3. Standards catalogue
  4. ICS
  5. 71
  6. 71.080
  7. 71.080.15
  8. ISO 5275:1979