It is shown in the article, how the revision of the Czech methodical standard for abioseston analysis in water ČSN 75 7713 from December 2015 and the lowering of the limit value for abioseston in the Decree No. 252/2004 Coll. (drinking water quality) from 10 to 5% influenced results of routine laboratories.
VTEI / Decree No. 252/2004 Coll.