This document applies to liquid scintillation counters and requires the preparation of a scintillation source obtained by mixing the test sample and a scintillation cocktail. The test sample can be liquid (aqueous or organic), or solid (particles or filter or planchet).Cross References:ISO/IEC 17025:2005ISO 11929:2010ISO 18589-2:2015ISO 5667-3:2012ISO 5667-1:2006ISO 13165-1:2013ISO 11704:2010ISO 13164-4:2015ISO 9698:2010ISO/IEC GUIDE 98-3:2008 Ed 1ISO 7870-2:2013ISO 18589-5:2009ISO/IEC Guide 99:2007ISO 80000-10:2009ISO 13162:2011ISO 13168:2015Incorporates the following:Corrigendum, March 2020