本文件规定了摩托车蒸发排放物渗透试验程序的基本测量方法。本标准适用于装有储存液体高挥发性燃料的油箱和火花点火发动机（四冲程发动机、二冲程发动机或旋转活塞发动机）的摩托车。

This document specifies a basic measurement method by using a permeation test procedure for evaporative emissions from motorcycles. It is applicable to motorcycles equipped with a fuel tank to store liquid high volatile fuel and with a spark ignition engine (four-stroke engine, two-stroke engine or rotary piston engine).