Methods / Applications : ASI Standards provides standards and guidance on the following methods
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      2. Methods / Applications : ASI Standards provides standards and guidance on the following methods

      D6247

      Elements in Polyolefins by WDXRF

      Scope

      1.1 This test method covers a general procedure for the determination of elemental content in polyolefins by wavelength-dispersive X-ray fluorescence (WDXRF) spectrometry, in mass fraction ranges typical of those contributed by additives, catalysts, and reactor processes. The elements covered by this test method include fluorine, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, calcium, titanium, chromium, and zinc in the composition ranges given in Table 1.