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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 45695-2025 |
Quality Requirements for Air-Rail Passenger Intermodal Transport Services {译} 空铁旅客联运服务质量要求 |
China National Standards Air Quality Requirements |
 English PDF |
| GB/T 17729-2023 |
Air Quality Requirements and Testing Methods in Long-distance Buses {译} 长途客车内空气质量要求及检测方法 |
China National Standards Air Quality Requirements |
English PDF |
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