ISO 5521:1981
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Fruits, vegetables and derived products — Qualitative method for the detection of sulphur dioxide
| Published By | Publication Date | Number of Pages |
| ISO | 1981-08 | 4 |
The method is applicable to products having contents of 2 mg or more per kilogram. It consists in acidification of a test portion and decolourizing by the liberated gas of a starch indicator paper previously coloured blue by a trace of iodine vapour.
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