本文件规定了总颗粒物中苯并[a]芘（B[a]P）的测定方法 使用气相色谱/质谱（GC-MS）分析香烟主流烟气中的物质（TPM） 以甲醇为萃取溶剂。 该方法使用ISO 20778吸烟参数进行规定。购买本文件时可获得的所有当前修订均包含在购买本文件中。

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 methanol as extraction solvent. This method is specified using ISO 20778 smoking parameters.All current amendments available at time of purchase are included with the purchase of this document.