| Standard_ID | HG 20503-1992 (HG20503-1992) |
| Description (Translated English) | Chemical engineering construction projects in the design of noise control regulation |
| Sector / Industry | Chemical Industry Industry Standard |
| Classification of Chinese Standard | Z67 |
| Classification of International Standard | 13.140; 71.010 |
| Word Count Estimation | 14,000 |
| Date of Issue | 5/25/1992 |
| Date of Implementation | 9/1/1992 |
| Summary | This standard applies to chemical companies for construction, extension, alteration and transformation projects noise control design (except for impulse noise). |