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| Chinese National Standard Category: Heat supply, air supply, air conditioning and refrigerating engineering in general |
| English Title: | Specification of contents and procedure on heating，ventilating and air conditioning detailed design for chemical plant |
| Chinese Title: | 化工采暖通风与空气调节详细设计内容和深度的规定 |
| Standard No.: | HG/T 20656-1998 |
| Category No.: | P45 |
| Issued by: | 国家石油和化学工业局 |
| Issued on: | 1998-11-18 |
| Implemented on: | 2000-6-1 |
| Status: | superseded |
| Superseded by: | HG/T 20656-2024 |
| Superseded on: | 2024-10-1 |
| Abolished on: | |
| Superseding: | CD 70A1-1982 |
| Word Count: | 27000 words |
| Similar Standards: | T/CECS 10170-2022 DB32/T 4165-2021 T/CECS 10003-2017 T/CECS 10022-2021 T/CECS 10131-2021 DB32/T 4167-2021 DB37/T 5237-2022 T/CECS 10121-2021 T/ZRCX 007-2020 DB11/T 2172-2023 DB11/T 1211-2023 GB/T 16411-2023 T/CECS 10221-2022 GB/T 41320-2022 GB/T 41317-2022 T/CECS 10182-2022 GB 18111-2021 GB 25034-2020 T/CECS 10136-2021 T/CECS 10137-2021 |
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