1.1 本规程描述了通常用于监测工作场所个人空气暴露的采样泵的流速设置和验证。 1.2 本规程包括使用可追溯到国家或国际标准的工作标准流量计的程序，以及不可追溯到的程序。首选可追溯标准。 1.3 以国际单位制表示的数值应视为标准。本标准中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）。 本标准的使用者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====== 5.1 大多数职业暴露评估方法要求使用个人采样泵以典型的采样流速收集空气样本，采样量由（a）特定程序规定。这些方法的精度和偏差直接受到用于测量采样空气量的泵的精度和偏置的影响。

1.1 This practice describes the setting and verification of flow rate for sampling pumps commonly used for monitoring personal airborne exposures in the workplace. 1.2 This practice includes procedures for using working standard flow meters that are traceable to national or international standards, as well as those that are not. Traceable standards are preferred. 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, 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 ====== 5.1 Most occupational exposure assessment methods require the use of personal sampling pumps to collect air samples at typical sampling flow rates, with sampling volumes specified by (a) particular procedure(s). The precision and bias of these methods are directly affected by the precision and bias of the pumps used in the measurement of the air volume(s) sampled.