GB/T 15687-2008Animal and vegetable fats and oils -- Preparation of test sample (English PDF)

Foreword

This Standard is identical to ISO 661:2003 "Animal and vegetable fats and oils -

Preparation of test sample" (English version).

For convenience of use, this Standard makes the following editorial changes to ISO

661:2003:

-- Delete the foreword of the international standard;

-- Change "this International Standard" into "this Standard";

-- Use the decimal point "." to replace the comma "," in the original text;

This Standard replaces GB/T 15687-1995 "Oils and fats - Preparation of test sample".

The main differences between this Standard and GB/T 15687-1995:

-- Remove definitions;

-- Modify the scope of application of the measurement items of the solid laboratory

sample preparation method;

-- Integrate the storage requirements.

This Standard was proposed by the State Administration of Grain.

This Standard shall be under the jurisdiction of National Technical Committee 270 on

Grain and Oil of Standardization Administration of China.

The drafting organizations of this Standard: Standard Quality Center of State

Administration of Grain, Nanjing University of Finance & Economics.

1 Scope

This Standard specifies methods and procedures for the preparation of a test sample

from a laboratory sample of animal and vegetable fats and oils.

This Standard applies to fats and oils other than emulsified fats (such as butter,

margarine or mayonnaise).

2 Principle

Mix fats and oils, and heat at an appropriate temperature when necessary. If required,

insoluble substances are separated by filtration and water is removed by drying with

anhydrous sodium sulfate.

3 Reagent

Anhydrous sodium sulfate.

4 Apparatus

5 Procedure