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EN ISO 659:2009

Current
Current

The latest, up-to-date edition.

Oilseeds - Determination of oil content (Reference method) (ISO 659:2009)
Published date

01-07-2009

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagent
6 Apparatus
7 Sampling
8 Preparation of test sample
   8.1 Reduction of laboratory sample
   8.2 Predrying
   8.3 Test sample
9 Procedure
   9.1 General
   9.2 Test portion
   9.3 Determination
   9.4 "Oil content" of impurities
10 Expression of results
   10.1 Method of calculation
11 Precision
   11.1 Interlaboratory test programme
   11.2 Repeatability
   11.3 Reproducibility
12 Test report
Annex A (informative) - Results of interlaboratory tests on
        the determination of oil content
Bibliography

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.

Committee
CEN/TC 307
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current

BS EN ISO 658:2002 Oilseeds. Determination of content of impurities
EN ISO 10565:1998 Oilseeds - Simultaneous determination of oil and water contents - Method using pulsed nuclear magnetic resonance spectrometry (ISO 10565:1998)
EN ISO 658 : 2002 OILSEEDS - DETERMINATION OF CONTENT OF IMPURITIES
BS EN ISO 10565:1998 Oilseeds. Simultaneous determination of oil and water contents. Methods using pulsed nuclear magnetic resonance spectrometry
ISO 658:2002 Oilseeds — Determination of content of impurities

ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 664:2008 Oilseeds Reduction of laboratory sample to test sample
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 542:1990 Oilseeds — Sampling
ISO 665:2000 Oilseeds Determination of moisture and volatile matter content
ISO 658:2002 Oilseeds — Determination of content of impurities

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