Ringelmann blackness
Ringelmann blackness, Total:2 items.
The international standard classification for "Ringelmann blackness" includes: Stationary source emissions .
The Chinese standard classification for "Ringelmann blackness" includes: Analysis methods for exhaust emission pollutants .
Guangdong Provincial Standard of the People's Republic of China
- DB4403/T 270-2022 General technical requirements for Ringelmann blackness electronic capture recognition system based on image recognition
Professional Standard - Environmental Protection
- HJ/T 398-2007 Stationary source emission-Determination of blackness of smoke plumes-Ringelmann smoke chart
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