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ISO 11614:1999

Reciprocating internal combustion compression-ignition engines — Apparatus for measurement of the opacity and for determination of the light absorption coefficient of exhaust gas ISO 11614:1999

Publication date:   Sep 23, 1999

General information

90.20   Standard under periodical review   Jul 15, 2026

ISO

ISO/TC 70/SC 8 Exhaust gas emission measurement

International Standard

13.040.50   Transport exhaust emissions | 43.180   Diagnostic, maintenance and test equipment

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Published

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 3173:1974

WITHDRAWN
ISO/TR 4011:1976

NOW

PUBLISHED
ISO 11614:1999
90.20 Standard under periodical review
Jul 15, 2026




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