1.1 本试验方法包括测定在30到350℃之间沸腾的液体的蒸馏范围 °C，通过手动或自动蒸馏程序在蒸馏过程中化学稳定。 1.2 本试验方法适用于有机液体，如碳氢化合物、含氧化合物、化学中间体及其混合物。 1.3 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。 1.4 为了使用本试验方法确定观察值或计算值是否符合相关规范，应根据实践修约方法，将用于表示规范极限的最后一个右手数字中的试验结果修约为“最接近的单位” E29年 . 1.5 有关危险信息和指南，请参阅供应商的材料安全数据表。 1.6 警告- 环保局和许多国家机构已将汞指定为一种有害物质，可导致中枢神经系统、肾脏和肝脏损害。 汞或其蒸汽可能对健康有害，并对材料具有腐蚀性。处理汞和含汞产品时应小心。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)了解更多信息。用户应意识到，州法律可能禁止在您所在州销售汞或含汞产品，或同时销售两者。 1.7 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。 第节给出了具体的危险说明 7. . 1.8 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 本试验方法提供了一种测量挥发性有机液体馏程的方法。有机液体的相对挥发性可与其他测试一起用于识别和测量质量。因此，本试验方法提供了一种用于评估是否符合规范的试验程序。 5.2 该试验方法还提供了残渣、溶剂回收能力和加热损失（或不回收）的经验值。有机液体在许多化学过程中用作溶剂。由于相对挥发性、残留物质和回收能力会影响这些过程的效率，因此该测试方法在制造控制中很有用。

1.1 This test method covers the determination of the distillation range of liquids boiling between 30 and 350 °C, that are chemically stable during the distillation process, by manual or automatic distillation procedures. 1.2 This test method is applicable to organic liquids such as hydrocarbons, oxygenated compounds, chemical intermediates, and blends thereof. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off “to the nearest unit” in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29 . 1.5 For hazard information and guidance, see the supplier's Material Safety Data Sheet. 1.6 Warning— Mercury has been designated by EPA and many state 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, in your state may be prohibited by state law. 1.7 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 7 . 1.8 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 a method of measurement of distillation range of volatile organic liquids. The relative volatility of organic liquids can be used with other tests for identification and measurement of quality. Therefore, this test method provides a test procedure for assessing compliance with a specification. 5.2 This test method also provides an empirical value of residue, solvent recovery capacity, and loss (or non-recovery) on heating. Organic liquids are used as solvents in many chemical processes. As the relative volatility, residual matter and recovery capability affect the efficiency of these processes, this test method is useful in manufacturing control.