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1、中華人民共和國國家環(huán)境保護(hù)標(biāo)準(zhǔn)HJ635—2012土壤水溶性和酸溶性硫酸鹽的測定重量法Soil-Determinationofwater-solubleandacid-solublesulfate-Gravimetricmethod（發(fā)布稿）本電子版為發(fā)布稿。請以中國環(huán)境科學(xué)出版社出版的正式標(biāo)準(zhǔn)文本為準(zhǔn)。2012-02-29發(fā)布2012-06-01實(shí)施發(fā)布環(huán)境保護(hù)部目次前言............................................................................................................
2、.................................II警告..................................................................................................................................................11適用范圍...........................................................................................................
3、.........................12規(guī)范性引用文件........................................................................................................................13術(shù)語和定義................................................................................................................................14方法原理.
4、...................................................................................................................................15干擾和消除................................................................................................................................16試劑和材料.......................
5、.........................................................................................................27儀器和設(shè)備................................................................................................................................38樣品....................................................
6、........................................................................................39分析步驟....................................................................................................................................410結(jié)果計(jì)算與表示............................................................
7、............................................................511精密度和準(zhǔn)確度........................................................................................................................512質(zhì)量保證和質(zhì)量控制......................
