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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| HJ 1235-2021 |
Naming and coding rules for sewage outfalls into rivers (seas){译} {译} 入河（海）排污口命名与编码规则 |
China Environment Industry
Standards outfalls |
 English PDF |
| HJ 1234-2021 |
Inspection and remediation of sewage outfalls into rivers (seas) Technical specifications for remote sensing interpretation of unmanned aerial vehicles{译} {译} 入河（海）排污口排查整治 无人机遥感解译技术规范 |
China Environment Industry
Standards outfalls |
English PDF |
| HJ 1233-2021 |
Inspection and remediation of sewage outfalls into rivers (seas) Technical specifications for remote sensing aerial surveys by unmanned aerial vehicles{译} {译} 入河（海）排污口排查整治 无人机遥感航测技术规范 |
China Environment Industry
Standards outfalls |
English PDF |
| HJ 1232-2021 |
Technical guide for three-level inspection of sewage outfalls into rivers (seas){译} {译} 入河（海）排污口三级排查技术指南 |
China Environment Industry
Standards outfalls |
English PDF |
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