本国际标准规定了测定多环芳烃的取样、净化和分析程序 环境空气中的芳烃（PAH）。其设计用于收集气相和颗粒相多环芳烃 并集体决定。这是一种高容量（100升/分钟至250升/分钟）的方法，能够检测 0.05 ng/m3或更低浓度的多环芳烃，采样量不超过350 m3。该方法已得到验证 对于长达24小时的采样周期。 正常条件下的精度预计为25%或更高，不确定度预计为50%或更高（参见 附件A，表A.1）。 本国际标准描述了多环芳烃的取样和分析程序，涉及从 将空气置于细颗粒过滤器和吸附剂捕集器的组合上，然后通过气相色谱/质谱进行分析 光谱分析（GC/MS）。

This International Standard specifies sampling, cleanup and analysis procedures for the determination of polycyclic aromatic hydrocarbons (PAH) in ambient air. It is designed to collect both gas-phase and particulate-phase PAH and to determine them collectively. It is a high-volume (100 l/min to 250 l/min) method capable of detecting 0,05 ng/m3 or lower concentrations of PAH with sampling volumes up to 350 m3. The method has been validated for sampling periods up to 24 h. Precision under normal conditions can be expected to be _ 25 % or better and uncertainty _ 50 % or better (see annex A, Table A.1). This International Standard describes a procedure for sampling and analysis for PAH that involves collection from air on a combination fine-particle filter and sorbent trap, and subsequent analysis by gas chromatography/mass spectrometry (GC/MS).