DIN EN 17505:2024-04

This document (EN 17505:2023) has been prepared by Technical Committee CEN/TC 444 "Environmental characterization of solid matrices", the secretariat of which is held by NEN (Netherlands). The responsible German standardization committee is Working Group NA 119-01-02-02-03 AK "Nährstoffe, Anionen, Summenparameter" ("Nutrients, anions, general measures of effects") at DIN Standards Committee Water Practice (NAW). This European Standard specifies a method for the differentiated determination of the organic carbon content (TOC400) which is released at temperatures up to 400 °C, the residual oxidizable carbon (ROC) (including, for example, lignite (brown coal), hard coal, charcoal, black carbon, soot) and the inorganic carbon (TIC900) which is released at temperatures up to 900 °C. The basis is the dry combustion to CO₂ in a in the presence of oxygen using temperatures ranging from 150°C to 900 °C in dry solid samples of soil, soil with anthropogenic admixtures and solid waste with carbon contents of more than 1 g per kg (0,1 % C) (per carbon type in the test portion).