ISO 21755-3:2025

Motorcycles — Measurement method for evaporative emissions Part 3: VT-SHED test procedure Published (Edition 1, 2025)

Abstract

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).