GB/T 8190.3-2025
ActiveReciprocating internal combustion engines—Exhaust emission measurement—Part 3:Test procedures for measurement of exhaust gas smoke emissions from compression ignition engines using a filter type smoke meter
往复式内燃机 排放测量 第3部分:使用滤纸式烟度计测量压燃式发动机排气烟度的测试规程