1.1 本试验方法包括使用雪莉分析仪测定棉花的非皮棉含量。棉花的形式可能是( 1. )原料，即通过轧棉从种子中分离出来的棉纤维；( 2. )部分加工的棉花，如摘棉布或棉条；或( 3. )轧棉或加工废物，如从轧棉、开松和清洁、拣选、梳理或精梳机获得的废物。 1.2 本试验方法特别适用于使用雪莉分析仪测定棉花的非皮棉含量。 1.3 以国际单位制表示的数值应视为标准值。国际单位制后括号中给出的值仅供参考，不被视为标准值。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 有关具体的危险说明，请参阅第节 7. . 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 这种测试棉花非皮棉含量的测试方法被认为是商业装运验收测试的满意方法，因为它是获得客观数据的最佳可用程序。 5.1.1 如果两个实验室（或更多实验室）的报告测试结果之间存在实际意义上的差异，则应进行比较测试，以确定它们之间是否存在统计偏差，并使用适当的统计协助。至少应确保使用的测试样品尽可能均匀，从获得不同测试结果的材料中提取，并以相同数量随机分配给每个实验室进行测试。应使用未配对数据的统计测试，在测试系列之前选择的概率水平上，比较两个实验室的测试结果。如果发现偏差，必须找到并纠正其原因，或者考虑到已知偏差，必须调整该材料的未来测试结果。 5.2 本试验方法给出了原棉非皮棉含量的数据，可作为以下各项的基础:( 1. )估计可从原棉获得的纺织成品的净额；( 2. )预测棉纺织产品的质量，特别是其美学性能；( 3. )在非皮棉含量的基础上组装和混合捆；( 4. )调整轧棉机和纺织加工机，以最大限度地提高清洁皮棉的效率；和( 5. )将棉花的非皮棉含量与最终产品质量和加工效率联系起来。

1.1 This test method covers the determination of the non-lint content of cotton using the Shirley Analyzer. The cotton may be in the form of ( 1 ) raw stock, that is, cotton fiber that has been separated from the seed by ginning; ( 2 ) partially processed cotton, such as picker lap or sliver; or ( 3 ) ginning or processing waste, such as obtained from ginning, opening and cleaning, picking, carding, or combing machines. 1.2 This test method is especially adapted for determining non-lint content of cotton by use of the Shirley Analyser. 1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 7 . 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This test method for testing cotton for non-lint content is considered satisfactory for acceptance testing of commercial shipments since it is the best available procedure for obtaining objective data. 5.1.1 If there are differences of practical significance between reported test results for two laboratories (or more), comparative tests should be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a minimum, ensure the test samples to be used are as homogeneous as possible, are drawn from the material from which the disparate test results were obtained, and are randomly assigned in equal numbers to each laboratory for testing. The test results from the two laboratories should be compared using a statistical test for unpaired data, at a probability level chosen prior to the testing series. If a bias is found, either its cause must be found and corrected, or future test results for that material must be adjusted in consideration of the known bias. 5.2 This test method gives data on the non-lint content of raw cotton which can be used as a basis for: ( 1 ) estimating the net amount of manufactured textile product obtainable from raw cotton; ( 2 ) predicting the quality of cotton textile products, particularly their aesthetic properties; ( 3 ) assembling and blending bales in a mix on a non-lint content basis; ( 4 ) adjusting ginning and textile processing machines for maximum efficiency in cleaning lint; and ( 5 ) relating non-lint content of cotton to end-product quality and processing efficiency.