1.1本规程为棉花分类仪器的鉴定提供了两个选项:选项1， 新安装的 棉花分类仪器，或选项2， 年度验证 使用评估棉花、垃圾评估图像和颜色评估纤维样品的棉花分类仪器，用于马克隆读数、上半平均长度、均匀性指数、断裂韧性（强度）、Rd（颜色反射率）、+b（颜色黄度）、面积百分比（垃圾）和颗粒计数（垃圾）的纤维测量。 1.2本规程涵盖了验证棉花分类仪器报告数据一致性的技术要求。 1.2.1当安装新设备时，可以使用本规程，也可以使用本规程对报告数据的一致性进行年度验证。 1.2.2本规程可用于使用评估棉花、垃圾评估图像和颜色评估纤维样品鉴定棉花分类仪器。这些数据可用于马克隆读数、上半平均长度、均匀性指数、强度、颜色反射率和杂质的光纤测量。 1.3以英制单位表示的数值应视为标准值。本标准不包括其他计量单位。 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和健康实践，并确定监管限制的适用性。 ====意义和用途====== 本规程的目的是为鉴定棉花分类仪器的评估棉花和评估样品的使用提供指导原则。 根据本规程认证的棉花分类仪器应能够测试马克隆读数、上半平均长度、均匀性指数、断裂韧性（强度）、Rd（颜色）、+b（颜色）、面积百分比（杂质）和颗粒数（杂质）的纤维特性。 本规程为棉花分类仪器的用户提供了进行标准化测试的指南，以确保测试结果在棉花包营销的可接受公差范围内（见下表）。 上半部分平均长度、均匀性指数和断裂韧性（强度）的测试应由两（2）个由自动机械取样器制备的试样的平均值组成。 颜色和杂质测试应包括四（4）次测量的平均值，每个样品上的颜色评估纤维样品在测量之间旋转90度。 马克隆值试验应包括一次测量。

1.1 This practice provides two options for the qualification of cotton classification instruments: option 1, newly installed cotton classification instrumentation, or option 2, annual verification of cotton classification instrumentation using evaluation cottons, trash evaluation images, and color evaluation fiber samples for the fiber measurements of micronaire reading, upper half mean length, uniformity index, breaking tenacity (strength), Rd (color reflectance), +b (color yellowness), percent area (trash), and particle count (trash). 1.2 This practice covers the technical requirements to validate the consistency of data reported by a cotton classification instrument. 1.2.1 The practice can be used when new equipment is installed or it can be used to perform annual verification for consistency of reported data. 1.2.2 The practice can be used to qualify cotton classification instruments using evaluation cottons, trash evaluation images, and color evaluation fiber samples. These data can be used for fiber measurements of micronaire reading, upper half mean length, uniformity index, strength, color reflectance, and trash. 1.3 The values stated in English units are to be regarded as standard. No other units of measurement are included in this 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 and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== The purpose of this practice is to provide guiding principles for the use of evaluation cottons and evaluation samples for the qualification of cotton classification instruments. The cotton classification instruments qualified under this practice shall be capable of testing the fiber properties of micronaire reading, upper half mean length, uniformity index, breaking tenacity (strength), Rd (color), +b (color), percent area (trash) and particle count (trash). This practice provides guidelines for users of cotton classification instruments to perform standardized testing that will ensure that test results are within acceptable tolerances (see tables below) for the marketing of cotton bales. A test of the upper half mean length, uniformity index and breaking tenacity (strength) shall consist of an average of two (2) specimens that are prepared by an automatic mechanical sampler. A test of the color and trash shall consist of an average of four (4) measurements with a 90 degree rotation of the color evaluation fiber samples between measurements on each sample. The micronaire test shall consist of a single measurement.