This document specifies the terms and definitions, technical requirements, test methods, inspection rules, and marking, packaging, transportation and storage of the exhaust muffler assembly of automotive (hereinafter referred to as the “muffler”). This document is applicable to exhaust muffler assemblies for Class M and Class N motor vehicles.
Basic Data
Standard ID
QC/T 631-2025 (QC/T631-2025)
Description (Translated English)
Exhaust muffler assembly of automotive
Sector / Industry
Automobile and Vehicle Industry Standard (Recommended)
Classification of Chinese Standard
T11
Classification of International Standard
43.060.01
Word Count Estimation
18,196
Date of Issue
2025-05-09
Date of Implementation
2025-11-01
Older Standard (superseded by this standard)
QC/T 631-2009
Issuing agency(ies)
Ministry of Industry and Information Technology of the People's Republic of China
