1.1 本试验方法涵盖了通过自动颗粒硬度测试仪测量炭黑单个颗粒硬度的程序。 1.2 以国际单位制表示的值应被视为标准。括号中的值仅供参考。 1.3 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 =====意义和用途====== 4.1 单个颗粒硬度与几个炭黑特性有关。其中包括质量力量和消耗。在一些含有炭黑的混合化合物中获得的后续分散水平可能会受到颗粒硬度的影响。 可接受的颗粒硬度必须得到用户和生产商的同意。

1.1 This test method covers a procedure for measuring individual pellet hardness of carbon black by the automated pellet hardness tester. 1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only. 1.3 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. 1.4 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 Individual pellet hardness is related to several carbon black characteristics. Among these are mass strength and attrition. The subsequent level of dispersion obtained in some mixed compounds containing the carbon black may be affected by pellet hardness. Acceptable pellet hardness must be agreed to by the user and the producer.