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GB/T 11742-1989 standard english preview version PDF file download



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
Chinese Version Price $15 USD per 50 pages
English Translation Price About $15  per 1 page; Inquire us for detail price

 
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