Home / Standards / GB 11661 GB 11661 Abolished Health protection zone standard for coke-oven plants 焦化厂卫生防护距离标准 Standard Type GB ICS 13.100 CCS C51 Status 废止 Issue Date 1989-07-24 Implementation 1990-06-01 Responsible Dept 国家卫生健康委 Drafting Unit 国家卫生健康委