This standard was last reviewed and confirmed in 2018.
Therefore this version remains current.
Abstract
PreviewThe method consists in extracting the acid from an acidified test portion using diethyl ether, nitrating followed by reduction and Mohler's reaction modified with hydroxylaminehydrochloride, measuring the absorbance of the red complex obtained with a suitable spectrometer. For determining lower concentrations, see ISO 5518.
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Status: PublishedPublication date: 1983-11
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Edition: 1Number of pages: 3
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- ICS :
- 67.080.01 Fruits, vegetables and derived products in general
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en
| Format | Language | |
|---|---|---|
| std 1 40 | ||
| std 2 40 | Paper |
- CHF40
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