Reference number
ISO 1897-6:1977
ISO 1897-6:1977
© ISO 2024
ISO 1897-6:1977
Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use — Methods of test — Part 6: Test for absence of hydrogen sulphide (Cresylic acid and xylenols only)
Edition 1
1977-04
1977-04
Withdrawn
Abstract
simple test which cannot be used to obtain quantitative results. The principle of the method is based on formation of a brown colour on lead acetate paper due to reaction with any hydrogen sulphide present in a test portion. ISO 1897/6 replaces ISO Recommendation R 1908-1971.
Life cycle
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Previously
WithdrawnISO/R 1908:1971
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Now