ISO 21755-3:2025Published

Motorcycles — Measurement method for evaporative emissions — Part 3: VT-SHED test procedure

Motocycles — Méthode de mesure pour les émissions par évaporation — Partie 3: Protocole d'essai VT-SHED

Abstract / scope

This document specifies a basic measurement method by using the variable temperature sealed housing for evaporative determination (VT-SHED) test procedure for evaporative emissions from motorcycles. It is applicable to motorcycles equipped with a spark ignition engine (four-stroke engine, two-stroke engine or rotary piston engine).