This standard was last reviewed and confirmed in 2021. Therefore this version remains current.
This International Standard specifies the general requirements and the installation of apparatus for measurement of
the opacity and for the determination of the light absorption coefficient of exhaust gas from internal combustion
engines (not confined to road vehicles). These instruments are known as opacimeters.
Status: PublishedPublication date: 1999-09
Edition: 1Number of pages: 57
Technical Committee: ISO/TC 70/SC 8 Exhaust gas emission measurement
Buy this standard
|std 1 187|
|std 2 187||Paper|
A standard is reviewed every 5 years
Stage: 90.93 (Confirmed)
Got a question?
Check out our FAQs
+41 22 749 08 88
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.