ISO 8178-9:2019 往复式内燃机 排放测量 第9部分：压燃式发动机瞬态工况排气烟度的试验台测量用试验循环和测试规程

标准编号：ISO 8178-9:2019

中文名称：往复式内燃机 排放测量 第9部分：压燃式发动机瞬态工况排气烟度的试验台测量用试验循环和测试规程

英文名称：Reciprocating internal combustion engines — Exhaust emission measurement — Part 9: Test cycles and test procedures for measurement of exhaust gas smoke emissions from compression ignition engines usin

发布日期：2019-07

标准范围

This document specifies the measurement procedures and test cycles for the evaluation of smoke 
emissions from compression ignition engines using an opacimeter. The tests are carried out under 
steady-state and transient operation using tests cycles which are representative of a given application.
The smoke testing is conducted using opacimeter-type smoke meters which operate on the light 
extinction principle. The purpose of this document is to define the smoke test cycles and the methods 
used to measure the opacity and for the determination of the light absorption coefficient. It allows the 
use of either full-flow or partial-flow opacimeters and corrects for differences in rise time between 
the two types of opacimeters. Specifications of the apparatus for the measurement of opacity can be 
found in ISO 11614. The test procedures and measurement techniques described in this document are 
applicable to reciprocating internal combustion (RIC) engines in general. Annex D, Annex E, Annex F 
and Annex G each contains a test cycle that is relevant only for those specific applications listed in the 
first subclause of that annex. Where possible, the smoke test cycle described in the annex utilizes the 
engine and machine categories developed in ISO 8178-4.
For certain categories of non-road engines “at site” rather than “test bed” smoke test procedures 
can prove to be necessary. For engines used in machinery covered by additional requirements (e.g. 
occupational health and safety regulations), additional test conditions and special evaluation methods 
can apply.

标准预览图