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The International Organization for Standardization (ISO) has published standard ISO/TS 21361:2019, “Nanotechnologies — Method to quantify air concentrations of carbon black and amorphous silica in the nanoparticle size range in a mixed dust manufacturing environment.” The standard provides guidelines to quantify and identify particles of Carbon black and/or amorphous silica in air samples collected in a mixed dust industrial manufacturing environment.
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