1.1 本试验方法包括测定催化剂和催化剂载体的总孔体积，即孔径在约14µm和0.4 nm（4Å）之间的孔体积。 1.2 单位- 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3 警告- 许多监管机构已将汞指定为一种有害物质，可导致中枢神经系统、肾脏和肝脏损伤。汞或其蒸气可能对健康有害，并对材料具有腐蚀性。处理汞和含汞产品时应谨慎。有关详细信息，请参阅适用的产品材料安全数据表（MSDS）和EPA网站-http://www.epa.gov/mercury/faq.htm-更多信息。用户应意识到，法律可能禁止向您所在的州或国家销售汞或含汞产品，或同时向这两种产品销售。 1.4 本标准并不旨在解决以下所有问题: 本标准的用户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。 具体危险说明见第节 8. .中给出了警告声明 10.1.4 , 10.1.7 和 10.1.11 . 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 本试验方法提供了在催化重要性范围内的孔体积的测量，并可能用于吸附过程。本试验方法要求使用汞进行测量。

1.1 This test method covers the determination of the total pore volume of catalysts and catalyst carriers, that is, the volume of pores having pore diameter between approximately 14 µm and 0.4 nm (4 Å). 1.2 Units— The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 Warning— Mercury has been designated by many regulatory agencies as a hazardous material that can cause central nervous system, kidney, and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPA’s website—http://www.epa.gov/mercury/faq.htm—for additional information. Users should be aware that selling mercury or mercury containing products, or both, into your state or country may be prohibited by law. 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. Specific hazard statements are given in Section 8 . Warning statements are given in 10.1.4 , 10.1.7 , and 10.1.11 . 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 provides for the measurement of volume of pores that are in the range of catalytic importance and possibly for adsorption processes. This test method requires the use of mercury in order to perform the measurements.