This standard specifies five levels of noise and sound level limits for reciprocating internal combustion engines. Applies to reciprocating internal combustion engines as defined in GB/T 21404.
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 | J91 | ICS | 27.020 |
| Release Date | 2023-09-07 00:00:00 | Implementation Date | 2024-04-01 00:00:00 |
