T/NAIA 0139-2022
Diesel engine nitrogen oxide reducing agent urea aqueous solution (AUS 32) Determination of urea content Automatic Kjeldahl method (English Version)
- Standard No.
- T/NAIA 0139-2022
- Language
- Chinese, Available in English version
- Release Date
- 2022
- Published By
- Group Standards of the People's Republic of China
- Latest
- T/NAIA 0139-2022
- Scope
- This document specifies the determination of urea content in diesel engine nitrogen oxide reducing agent urea aqueous solution (AUS32) - fully automatic Kjeldahl nitrogen analyzer method. This document is suitable for measuring the urea content in the nitrogen oxide reducing agent - urea aqueous solution (AUS32) used in the selective catalytic reduction system of diesel vehicles. When the urea content in the urea aqueous solution is between 30.0% and 35.0% (mass fraction), it can be used measured by this method.
T/NAIA 0139-2022 history
- 2022 T/NAIA 0139-2022 Diesel engine nitrogen oxide reducing agent urea aqueous solution (AUS 32) Determination of urea content Automatic Kjeldahl method
