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 China 'GB/T 11742-1989 ' standard english version:

　

NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

GB/T 11742-1989

Standard method for hygienic examination of hydrogen sulfide in air of residential areas--Methylene blue spectrophotometric method
居住区大气中硫化氢卫生检验标准方法 亚甲蓝分光光度法
Issued Date:1989-09-21 　 Implemented Date:1990-07-01
Issued by: 　 The Standardization Administration of the People's Republic of China
　

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GB Standard Code GB/T 11742-1989
Standard Category China National Standards
GB Standard English Title Standard method for hygienic examination of hydrogen sulfide in air of residential areas--Methylene blue spectrophotometric method
GB Standard Chinese Title 居住区大气中硫化氢卫生检验标准方法 亚甲蓝分光光度法
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