ISO 12884:2000 环境空气 多环芳香烃总量（气相和颗粒相）的测定 用气相色谱法/质量光谱分析法在吸收过滤器上选样.

标准编号：ISO 12884:2000

中文名称：环境空气 多环芳香烃总量（气相和颗粒相）的测定 用气相色谱法/质量光谱分析法在吸收过滤器上选样.

英文名称：Ambient air — Determination of total (gas and particle-phase) polycyclic aromatic hydrocarbons — Collection on sorbent-backed filters with gas chromatographic/mass spectrometric analyses

发布日期：2000-04

标准范围

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 polycyclicaromatic hydrocarbons (PAH) in ambient air. It is designed to collect both gas-phase and particulate-phase PAHand to determine them collectively. It is a high-volume (100 l/min to 250 l/min) method capable of detecting0,05 ng/m3 or lower concentrations of PAH with sampling volumes up to 350 m3. The method has been validatedfor sampling periods up to 24 h.Precision under normal conditions can be expected to be _ 25 % or better and uncertainty _ 50 % or better (seeannex A, Table A.1).This International Standard describes a procedure for sampling and analysis for PAH that involves collection fromair on a combination fine-particle filter and sorbent trap, and subsequent analysis by gas chromatography/massspectrometry (GC/MS).

标准预览图