GB/T 14269-2008 in English

《GB/T 14269-2008羊毛试验取样方法》由424-fibre（中国纤维检验局）归口，主管部门为国家市场监督管理总局。
本标准代替ＧＢ／Ｔ１４２６９―１９９３《羊毛试验取样方法》。本标准规定了从含脂毛和洗净毛中抽取批样、实验室样品的方法。本标准适用于绵羊毛。 本标准与ＧＢ／Ｔ１４２６９―１９９３相比主要变化如下：
―――增加了含脂毛和洗净毛的术语和定义（本版的２．１和２．２）；
―――修改了批样、实验室样品的术语和定义（１９９３版的３．１和３．２；本版的２．３和２．４）；
―――删除了试验样品、试验试样、多点法和对分减半法的术语和定义（１９９３版的３．３～３．６）；
―――修改了使用仪器和工具的分度值（１９９３版的５．２和５．３）；
―――修改了第６章的全部内容（１９９３版的第６章；本版的第５章）；
―――修改了第７章的部分内容（１９９３版的第７章；本版的第６章）；
―――删除了原标准中的附录Ａ，将其内容编入第６章和第７章（１９９３版的附录Ａ）。

1 Scope

This standard specifies the methods for taking lot sample and laboratory sample from greasy wool and scoured wool.
This standard is applicable to sheep wool.

2 Terminologies and Definitions

For the purposes of this standard, the following terminologies and definitions apply.
2.1
Greasy wool
Wool without treatment of washing, solvent degreasing, carbonization, etc.
2.2
Scoured wool
Wool after treatment of washing, solvent degreasing, carbonization, etc.
2.3
Lot sample
A relatively larger sample taken from one sale lot.
2.4
Laboratory sample
A representative well-mixed sample which is prepared respectively from lot sample or scoured wool lot sample and is used for taking the test sample.

3 Method Summary

Take lot samples from a wool bale by proper tools, and then take laboratory samples from these lot samples. The quantity of wool samples reduces gradually in these procedures, but the representativeness of sample shall be maintained as high as possible.

Foreword I
1 Scope
2 Terminologies and Definitions
3 Method Summary
4 Instruments and Tools
5 Extraction of Lot Samples
6 Extraction of Laboratory Samples from the Lot Samples Obtained by Unpacking Sampling
7 Extraction of Laboratory Samples from the Lot Samples Obtained by Core Sampling