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GB/T 13580.7-1992 standard english preview version PDF file download

GB Standard Code GB/T 13580.7-1992
Standard Category China National Standards
GB Standard English Title Determination of nitrite in the wet precipitation--N-(1-naphthyl)-1, 2-diaminoethane dihydrochloride spectrophotometry
GB Standard Chinese Title 大气降水中亚硝酸盐测定 N-(1-萘基)-乙二胺光度法
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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