ASTM D6919 - 17

    Стандартный метод испытания для определения растворенных катионов щелочных и щелочноземельных металлов и аммония в воде и сточных водах методом ионной хроматографии

    Active Standard ASTM D6919 Developed by Subcommittee: D19.05

    Book of Standards Volume: 11.02

      Format Pages Price  
    PDF 12 $97.00   ADD TO CART

    Historical Version(s) - view previous versions of standard

    Translated Standard(s): English

    ASTM License Agreement

    More D19.05 Standards Related Products

    Significance and Use

    5.1 This test method is applicable to the simultaneous determination of dissolved alkali and alkaline earth cations and ammonium in water and wastewaters. Alkali and alkaline earth cations are traditionally determined by using spectroscopic techniques, such as AAS or ICP; whereas ammonium can be measured by using a variety of wet chemical methods, including colorimetry, ammonia-selective electrode, and titrimetry. However, ion chromatography provides a relatively straightforward method for the simultaneous determination of cations, such as lithium, sodium, potassium, calcium, magnesium, and ammonium, in fewer than 20–30 min.