This standard was last reviewed and confirmed in 2018.
Therefore this version remains current.
Abstract
PreviewThe method is applicable to products having carbonyl compounds contents between 0.00025 % (m/m) and 0.01 % (m/m). The principle is based on reaction in acid medium of the carbonyl compounds in a test portion with 2,4-dinitrophenylhydrazine. Formation of the corresponding 2,4-dinitrophenylhydrazones which, after making the solution alkaline, take on a red coloration. Photometric measurement of this red coloration at a wavelength of about 445 nm. - International Standards ISO 1388/1 to 1388/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.
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Status: PublishedPublication date: 1981-12
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Edition: 1Number of pages: 3
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- ICS :
- 71.080.60 Alcohols. Ethers
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| Format | Language | |
|---|---|---|
| std 1 40 | ||
| std 2 40 | Paper |
- CHF40
Life cycle
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Previously
WithdrawnISO/R 1388:1970
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