This standard was last reviewed and confirmed in 2018.
Therefore this version remains current.
Abstract
PreviewThe specified method is applicable to HCHO contents between 25 5 and 45 %. The field of application may be extended by siutably modifying the mass of the test portion. The principle consists in the reaction of the test solution with a neutral sodium sulphite solution, and acidimetric titration of the liberated sodium hydroxide in presence of thymolphthalein as indicator.
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Status: PublishedPublication date: 1972-12
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Edition: 1Number of pages: 2
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- ICS :
- 71.080.80 Aldehydes and ketones
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| Format | Language | |
|---|---|---|
| std 1 40 | ||
| std 2 40 | Paper |
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