EN 14662的这一部分通过抽取采样，热解吸和毛细管气相色谱法对空气中苯的取样和分析提供了一般指导。 EN 14662的这一部分符合通用方法的选择，作为欧盟参考方法的基础，用于测定环境空气中的苯[1]，以便将测量结果与限定值与一年参考值进行比较期。 EN 14662的这一部分适用于通常在24小时内收集的空气样品中测量浓度范围为约0.5 mg/m3至50 mg/m3的苯。 有用范围的上限由吸附剂的吸附容量和气相色谱柱和检测器的线性动态范围或所用分析仪器的样品分离能力决定。有用范围的下限取决于检测器的噪声水平和吸附剂上苯和/或干扰人为因素的空白水平。人造物质通常用于吸附剂，但在其他吸附剂中已经注意到较高含量的芳烃。检测限将约为较低浓度范围的1/10

This part of EN 14662 gives general guidance for the sampling and analysis of benzene in air by pumped sampling, thermal desorption and capillary gas chromatography. This part of EN 14662 is in accordance with the generic methodology selected as the basis of the European Union reference method for the determination of benzene in ambient air [1] for the purpose of comparison of measurement results with limit values with a one-year reference period. This part of EN 14662 is valid for the measurement of benzene in a concentration range of approximately 0,5 mg/m3 to 50 mg/m3 in an air sample typically collected over a period of 24 hours. The upper limit of the useful range is set by the sorptive capacity of the sorbent and by the linear dynamic range of the gas chromatograph column and detector or by the sample splitting capacity of the analytical instrumentation used. The lower limit of the useful range depends on the noise level of the detector and on blank levels of benzene and/or interfering artefacts on the sorbent. Artefacts are typically sub ng for sorbents, but higher levels of aromatic hydrocarbons have been noted in other sorbents. The detection limit will be approximately 1/10 of the lower concentration range.