SIST EN ISO 659:2009 PDF
Oilseeds - Determination of oil content (Reference method) (ISO 659:2009)
Oilseeds - Determination of oil content (Reference method) (ISO 659:2009)
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 19
- Дата публикации:
- 18 ноября 2009 г.
- ICS:
- 67.200.20
- Технический комитет:
- KŽP - Agricultural food products
ISO 659:2009 specifies a reference method for the determination of the hexane extract (or light petroleum extract), called the “oil content”, of oilseeds used as industrial raw materials. The procedure for sunflower seed is different from those for other seeds as it includes an additional moisture content determination after the seed has been ground to prepare the test sample. The method has been tested on rapeseed, soya beans and sunflower seed. This does not, however, preclude its applicability to other commercial seeds. If required, the pure seeds and the impurities can be analysed separately. In the case of groundnuts, the pure seeds, the total fines, the non-oleaginous impurities and the oleaginous impurities can be analysed separately.
Abstract
Overview
EN ISO 659:2009 (ISO 659:2009) is the CEN-endorsed reference method for the determination of the oil content (hexane extract or light petroleum extract) of oilseeds used as industrial raw materials. The standard describes the principle of solvent extraction, test-sample preparation and measurement, and includes a specific additional step for sunflower seed (a post-grind moisture determination) to correct for moisture loss caused by grinding. The method has been validated on rapeseed, soya beans and sunflower seed, and may be applied to other commercial oilseeds.
Key topics and technical requirements
- Principle: Extraction of oil from a test portion with technical hexane or light petroleum, removal of solvent and weighing of the extract (expressed as percentage by mass).
- Reagent specification: Technical hexane/light petroleum with defined distillation ranges, **bromine value
Технические детали
- SKU
- SIST EN ISO 659:2009
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