GB/T 22460-2008 in English

《GB/T 22460-2008动植物油脂 罗维朋色泽的测定》由TC270（全国粮油标准化技术委员会）归口，TC270SC2（全国粮油标准化技术委员会油料及油脂分会）执行，主管部门为国家粮食和物资储备局。
本标准规定了动植物油脂罗维朋色泽测定的方法。本标准适用于动植物油脂色泽的测定。

1 Scope

This standard specifies a method for the determination of the Lovibond colour of animal and vegetable fats and oils.
This standard is applicable to the determination of the colour of animal and vegetable fats and oils.

2 Normative Reference

The following standard contains provision which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding corrigendum), or revisions of, any of these publications do not apply. However, all parties coming to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 15687 Oils and Fats - Preparation of Test Sample (GB/T 15687-1995, eqv ISO 661:1989)

3 Principle

The colour of the light transmitted through a known path length of liquid fat or oil is matched with the colour of the light originating from the same source transmitted through glass colour standards. The results are conventionally expressed in Lovibond units.

Foreword I
1 Scope 1
2 Normative Reference 1
3 Principle 1
4 Apparatus 1
5 Requirements for Operators 3
6 Sampling 3
7 Preparation of Test Sample 3
8 Procedure 3
9 Expression of Results 4
10 Precision 4
11 Test Report 4
Annex A (informative) Results of an Interlaboratory Trial 6