1.1 本报告颜料细度特性的实施规程旨在适用于大多数情况，其中使用了确定子孔径范围内这些粒度特性的众所周知的方法，例如显微镜法、沉淀法和浊度法；部分采用吸收法和渗透法。 1.2 本规程不考虑具有明确双峰分布的层状、片状颜料和复合颜料。 1.3 参数- 细度特性在以下三个参数中报告: 1.3.1 粒度参数。 1.3.2 粗糙度参数- 一种描述颜料粗糙度特征的参数，利用子孔径范围内的极限值，类似于筛孔范围内的极限值。 1.3.3 色散参数- 描述粒度分布均匀性的参数。 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。 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====== 4.1 这种做法很有价值( 1. )向细颗粒生产商报告颗粒特性的质量控制和( 2. )以确保粒度和粒度分布符合买方的要求。

1.1 This practice for reporting the fineness characteristics of pigments is designed to apply in most cases where well-known methods for determining these particle size characteristics in the subsieve range are employed, such as microscopic, sedimentation, and turbidimetric methods; and partially to absorption and permeability methods. 1.2 Laminar, plate-like pigments and composite pigments having a definite bimodal distribution are not considered within the scope of this practice. 1.3 Parameters— The fineness characteristics are reported in the following three parameters: 1.3.1 Particle Size Parameter. 1.3.2 Coarseness Parameter— A parameter descriptive of the coarseness character of the pigment, making use of a limiting value in the subsieve range similar to that used in the sieve ranges. 1.3.3 Dispersion Parameter— A parameter descriptive of the uniformity of the particle size distribution. 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. 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 ====== 4.1 This practice is of value ( 1 ) to the producer of fine particles as a means of reporting particle characteristics with respect to quality control and ( 2 ) to the buyer to assure that the particle size and particle size distribution meet his requirements.