GB/T 6097-2023 in English

《GB/T 6097-2023棉纤维试验取样方法》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委。

Sampling method for testing of cotton fibers

1 Scope

This document describes the sampling and preparation methods for the lot sample, laboratory sample, test sample, and test specimen for testing of cotton fibers. This document is applicable to the sampling for testing of cotton fibers.

2 Normative references

The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB1103.1 Cotton - Part 1: Saw ginned upland cotton
GB1103.2 Cotton - Part 2: Roller ginned upland cotton
GB/T1103.3 Cotton - Natural color uplands cotton
GB/T 19635 Cotton - Sea island cotton

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

3.1
lot sample
one or more cotton samples taken from a batch of cotton according to requirements as a representative or representatives of the batch of cotton to be sampled

3.2
laboratory sample
cotton sample(s) taken from lot sample(s) according to requirements as a representative (representatives) of lot sample(s)

3.3
test sample
cotton sample(s) taken from laboratory sample(s) according to requirements as a representative (representatives) of laboratory sample(s)

3.4
test specimen
cotton fiber(s) taken from laboratory or test sample(s) to be used in a test as a representative (representatives) of laboratory or test sample(s)

3.5
test by batch
behavior of testing one or more samples formed by partial sampling of samples from different bales of the same batch of cotton separately to understand their certain properties or results

3.6
test by sample
behavior of testing samples taken from different bales of the same batch of cotton one by one, or testing a sample combined by all samples to understand their certain properties or results

4 Principle

The sampling method combines all or part of the steps of taking lot sample(s) from a batch of cotton, laboratory sample(s) from lot sample(s), test sample(s) from laboratory sample(s), and one or more test specimens from test sample(s). Each step is to minimize the quantity of cotton fibers while maintaining the representativeness of the cotton fibers under test. See Figure 1 for the sampling flow chart.

Contents
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Instruments and tools
6 Sampling