1.1 本规程涵盖了几种液体循环产品的取样和处理程序。这些特别涵盖环境温度下的液体，包括苯、甲苯、二甲苯、环己烷、苯乙烯、吡啶、乙苯、异丙苯和α-甲基苯乙烯，以代表和保持产品质量的方式。 1.2 对这些产品进行采样或处理的任何人都应查阅适用的安全数据表（SDS），以了解具体的急救说明以及在个人接触或暴露时可使用的适当设备的信息。 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 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。 有关具体的危险说明，请参阅第节 3. , 4. , 5. , 6. 和 7. 和适当的SDS . ====意义和用途====== 3.1 本实施规程旨在提供有助于制定采样和处理程序的信息。预计该信息只能与现有的健康和安全计划结合使用，并与适当的SDS协商。 此处提供的信息不能替代专家安全和医疗建议，而是对此类建议的补充。

1.1 This practice covers procedures for sampling and handling several liquid cyclic products. These specifically cover liquids at ambient temperature and include benzene, toluene, xylenes, cyclohexane, styrene, pyridine, ethylbenzene, isopropylbenzene, and alpha-methylstyrene in a manner which represents and preserves product quality. 1.2 Any person sampling or handling these products should consult the applicable Safety Data Sheet (SDS) for specific first aid instructions and information on the proper equipment to have available for use in the event of personal contact or exposure. 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 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. For specific hazard statements, see Sections 3 , 4 , 5 , 6 and 7 and an appropriate SDS . ====== Significance And Use ====== 3.1 This practice is issued to provide information useful in establishing sampling and handling procedures. It is expected that this information will only be utilized in conjunction with an existing health and safety program and consultation with the appropriate SDS. The information provided herein cannot be used as a substitute for expert safety and medical advice, but rather as a supplement to such advice.