HJ 1211-2021 Solid waste: Determination of inorganic elements by wavelength-dispersive X-ray fluorescence spectroscopy

Scope

This standard specifies the wavelength dispersive X-ray fluorescence spectrometry method for determining 16 inorganic elements and 7 oxides in solid waste, including sludge, contaminated soil, fly ash, soot, tailings, and metallurgical slag. This standard applies to the determination of 16 inorganic elements and 7 oxides in solid waste, including arsenic (As), barium (Ba), chlorine (Cl), cobalt (Co), chromium (Cr), copper (Cu), manganese (Mn), nickel (Ni), phosphorus (P), lead (Pb), sulfur (S), strontium (Sr), titanium (Ti), vanadium (V), zinc (Zn), and zirconium (Zr), as well as silica (SiO2), aluminum oxide (Al2O3), and iron oxide (Fe2O3). The standard uses either the melted glass chip method or the powder pressing method to prepare solid waste samples. The melted glass chip method is suitable for preparing samples of sludge, contaminated soil, fly ash, soot, tailings, and metallurgical slag, but is not applicable for determining the content of chlorine (Cl). The powder pressing method is suitable for preparing samples of sludge, contaminated soil, fly ash, and soot. For samples prepared by the melted glass chip method, the detection limits for 15 inorganic elements range from 5 mg/kg to 70 mg/kg, and the lower limits range from 20 mg/kg to 280 mg/kg. For the 7 oxides, the detection limits range from 0.01% to 0.03%, and the lower limits range from 0.04% to 0.12%. For samples prepared by the powder pressing method, the detection limits for 16 inorganic elements range from 2 mg/kg to 30 mg/kg, and the lower limits range from 8 mg/kg to 120 mg/kg. For the 7 oxides, the detection limits range from 0.01% to 0.03%, and the lower limits range from 0.04% to 0.12%. For details, see Appendix A.

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