Measuring methods for reciprocating internal combustion engine structural noise are specified in this standard. Applicable to reciprocating internal combustion engines as defined in GB/T 21404. It mainly covers the determination of sound power level by sound pressure method and semi-anechoic chamber precision method. Accuracy and comparability of measurements are ensured by citing relevant standards such as GB/T 1859.1 and GB/T 13824.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | J90 | ICS | 27.020 |
| Release Date | 2023-09-07 00:00:00 | Implementation Date | 2024-04-01 00:00:00 |
