本文件规定了以环己烷为萃取溶剂，采用气相色谱/质谱（GC/MS）测定卷烟主流烟气总颗粒物（TPM）中苯并[a]芘（B[a]P）的方法。 该方法使用ISO 3308吸烟参数进行规定。本文件提供了ISO 22634-1中规定的替代方法，与ISO 22634-1相比，该方法具有不同的清理和更短的总分析运行时间，从而有可能提高样品吞吐量。

This document specifies a method for the determination of benzo[a]pyrene (B[a]P) in the total particulate matter (TPM) of cigarette mainstream smoke using gas chromatography/mass spectrometry (GC/MS) with cyclohexane as extraction solvent. This method is specified using ISO 3308 smoking parameters. This document provides an alternative method to that specified in ISO 22634-1, with a different clean-up, and a shorter total analytical run allowing a potential increase of sample throughput in comparison with ISO 22634-1.