標準號：BS ISO 8178-3-1994
中文標準名稱：往復式內燃機.廢氣排放測量.第3部分:在穩定狀態下廢氣黑煙排放測量定義和方法
英文標準名稱：Reciprocating internal combustion engines - Exhaust emission measurement - Definitions and methods of measurement of exhaust gas smoke under steady state conditions
標準類型：J90
發布日期：1996/7/15 12:00:00
實施日期：1996/7/15 12:00:00
中國標準分類號：J90
國際標準分類號：13.040.40;27.020
適用范圍：This part of ISO 8178 specifies two methods for the measurement of exhaust gas smoke characteristics of reciprocating internal combustion (RIC) engines operating under steady-state conditions. One method evaluates smoke opacity by measurement of the obscuration of a light beam; the other evaluates the soot content by measurement of the blackening of a filter. Where necessary, individual requirements may be specified for particular engine applications. This part of ISO 8178 does not deal with measure-ment under transient conditions; if smokemeters are used under transient conditions, the results from dif-ferent types of instrument cannot be compared un-less the sampling conditions are identical and the instrument characteristics are compatible. This part of ISO 8178 is applicable to RIC engines for land, rail-traction and marine use, including engines used to propel agricultural tractors and road vehicles. It may be applied to engines used to propel road-construction and earth-moving machines, industrial trucks, and for other applications where no suitable International Standards for exhaust gas smoke measurement of these engines exist. NOTE 1 If water is injected into the exhaust system, measurement or sampling can only be made upstream of the point of water injection.