EN ISO 3656:2011 PDF
Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011)
Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011)
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 15
- Дата публикации:
- 1 февраля 2011 г.
- Издание:
- CEN EN 3656 edition 2 version 1
- ICS:
- 67.200.10
ISO 3656:2011 specifies a method for the determination of the absorbance at ultraviolet wavelengths of animal and vegetable fats and oils.
Abstract
Overview
EN - "Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction" specifies a spectrophotometric method for measuring ultraviolet (UV) absorbance of fats and oils. The standard defines how to determine (K values) for animal and vegetable oils using diluted solutions in either or , with measurements made in a 10 mm quartz cell. Results are used as quality, purity and authenticity criteria (e.g., to indicate refining or oxidation).
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