ISO 3929:1995
ISO 3929:1995


Establishes the test procedures for direct measurement of the concentration of exhaust gas emissions from road vehicles with a maximum authorized total mass not exceeding 3,5 t, equipped with controlled ignition engines, excluding those which are supplied with fuel/oil mixture. Defines the recommended test procedure for periodic inspections in official garages, official roadside checks (e.g. by police), maintenance and diagnostic operations. These procedures may be used totally or partially.

General information 

  •  :  Withdrawn
     : 1995-02
  •  : 2
     : 6
  •  : ISO/TC 22 Road vehicles
  •  :
    13.040.50 Transport exhaust emissions
    43.060.20 Pressure charging and air/exhaust gas ducting systems

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.