ISO 8178-9:2019
往复式内燃机.废气排放测量.第9部分:用烟度计测量压燃式发动机废气烟雾排放的试验循环和试验程序
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