- Standard No.
- GB/T 11657-1989
- Language
- Chinese
- Release Date
- 1989
- Published By
- 中华人民共和国卫生部
- Replace By
-
GB/T 39499-2020
- Lastest
-
GB/T 39499-2020
GB/T 11657-1989 history
- 2020 GB/T 39499-2020 Technical guideline for derivation of health protection zone about fugitive emission of atmospheric harmful substances
- 1989 GB/T 11657-1989 Health protection zone standardfor copper smeltery (closed blast furnace type)
GB/T 11657-1989 Health protection zone standardfor copper smeltery (closed blast furnace type) was changed to GB/T 39499-2020 Technical guideline for derivation of health protection zone about fugitive emission of atmospheric harmful substances.