GB/T 10685-2007 in English

《GB/T 10685-2007羊毛纤维直径试验方法 投影显微镜法》由TC513（全国纤维标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本标准规定了用投影显微镜测定羊毛纤维直径的试验方法。 本标准适用于各种类型的毛绒纤维及经受过各种工艺处理后横截面没有明显变型的毛绒纤维，亦适用于横截面接近圆形的其他纤维。

1 Scope

This standard specifies the test methods for the determination of wool fibre diameter by means of the projection microscope.
This standard is applicable to wool fibres in any form and wool fibres without obvious cross-section changes after different kinds of treatment process, and also to other fibres of reasonably circular cross-section.

2 Normative References

The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 6978 Test method for the determination of scoured yield of greasy wool — Drying oven method
GB/T 8170 Rules for rounding off of numberical values
GB/T 14269 The sampling methods for wool testing

3 Terms and Definitions

For the purpose of this standard, the following terms and definitions apply.
3.1
Average diameter
Average value of longitudingal projection width of wool or other fibres.
3.2
Lot sample
As required, one or more of package unit randomly taken from a lot of product and served as the source of laboratory sample.
3.3
Laboratory sample
As required, product unit or partial materials taken from lot sample and served as the source of test sample.

3.4
Test sample