EN17289-2:2020isaEuropeanstandardthatspecifiesamethodfordeterminingthecharacteristicsofbulkmaterials,specificallyfocusingontheweightandcrystallinesilicacontentusingaprecipitationtechnique.Thisstandardispartofaseriesaddressingtheassessmentofmaterialslikeminerals,ores,andindustrialpowders,whereaccuratemeasurementofsilicacontentiscriticalforhealth,safety,andindustrialprocessingpurposes.Theprecipitationmethodinvolveschemicaltreatmenttoisolateandquantifycrystallinesilica,ensuringreproducibilityandreliabilityinresults.Itprovidesguidelinesforsamplepreparation,analyticalprocedures,andcalculationmethods,aidingincompliancewithoccupationalexposurelimitsandmaterialqualitycontrol.