GB/T 13779-2008 in English
ABOLISHEDCotton fibres - Test method for length - Comb sorter method
- Issued on:2008-08-07
- Implemented on:2008-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$117.00
《GB/T 13779-2008棉纤维 长度试验方法 梳片法》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。
本标准于1992年首次发布。本次是第一次修订。本标准规定了用梳片式长度分析仪测定棉纤维长度分布参数的方法。本标准适用于棉纤维长度指标的测定。本标准代替GB/T13779―1992《棉纤维 长度试验方法 梳片法》。本标准与GB/T13779―1992相比,主要变化如下:
a)修改了上四分位长度、质量平均长度等术语和定义(1992版的3.1;本版的3.1至3.4);
b)明确了原有梳片式长度仪的梳片间距(1992版的5.1;本版的5.2);
c)将原来称量用的天平都改用量程≥100mg,分度值≤0.2mg;分度值≤0.05mg的天平(1992版的5.2;本版的5.1);
d)修改了记录单(1992版的第10章;本版的附录A)。
Scope
This standard specifies the method for measuring the length distribution parameters of cotton fibers with a comb-type length analyzer. This standard applies to the determination of cotton fiber length index.

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