ISO 11085:2015 PDF
Cereals, cereals-based products and animal feeding stuffs — Determination of crude fat and total fat content by the Randall extraction method
Cereals, cereals-based products and animal feeding stuffs — Determination of crude fat and total fat content by the Randall extraction method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 16
- Дата публикации:
- 19 августа 2015 г.
- Издание:
- ISO IS 11085 edition 2 version 1
- ICS:
- 67.060
ISO 11085:2015 specifies procedures for the determination of the fat content of cereals, cereal-based products, and animal feeding stuffs. These procedures are not applicable to oilseeds and oleaginous fruits. The choice of procedure to be used depends on the nature and composition of the material analysed and the reason for carrying out the analysis. Procedure A is a method for the determination of directly extractable crude fats, applicable to all materials, except those included within the scope of procedure B. Procedure B is a method for the determination of total fats, applicable to all materials from which the oils and fats cannot be completely extracted without prior hydrolysis. NOTE Most cereals, as well as feeds of animal origin, yeasts, potato protein, compound feeds with milk products, glutens, and products subjected to processes such as extrusion, flaking, and heating, yield significantly higher total fat contents when tested by procedure B than by procedure A. See Annex B.
Abstract
Overview
ISO 11085:2015 specifies laboratory procedures for the determination of crude fat and total fat in cereals, cereal‑based products and animal feeding stuffs using the Randall extraction method (a modified Soxhlet extraction). The standard covers sample preparation, two complementary procedures (Procedure A for directly extractable fats and Procedure B for total fats requiring prior hydrolysis), equipment and reagent requirements, calculation of results, and precision data. Note: ISO 11085:2015 does not apply to oilseeds and oleaginous fruits.
Key topics and technical requirements
- Two procedures
- Procedure A - determination of directly extractable crude fat (no hydrolysis); applicable to most materials unless Procedure B is required.
- Procedure B - determination of total fat after acid hydrolysis to release fats bound in the matrix.
- Sample preparation
- Grind laboratory samples to
Технические детали
- Технический комитет
- ISO/TC 34/SC 4 - Cereals and pulses
- SKU
- ISO 11085:2015
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