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BS EN 17505:2023

BS EN 17505:2023

$167.15

Soil and waste characterization. Temperature dependent differentiation of total carbon (TOC400, ROC, TIC900)

Published By Publication Date Number of Pages
BSI 2023 34
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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 e.g. 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 using temperatures ranging from 150°C to 900 °C in dry solid samples of soil, soil with anthropogenic admixtures and solid waste (see Table 1) with carbon contents of more than 1 g per kg (0,1 % C) (per carbon type in the test portion).

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
3 Terms and definitions
8 4 Principle
5 Interferences
5.1 Interference due to carbides
9 5.2 Interference due to sulfur and nitrogen compounds
5.3 Interference due to carbonates
11 5.4 Peak does not reach the baseline
12 5.5 Difficulties in separating ROC600 peak and TIC900A peak
13 5.6 Interferences due to premature releases and deflagrations
5.7 Interferences due to catalytic active substances in samples
6 Reagents
6.1 General
14 6.2 Standards for system control
15 7 Apparatus
7.1 Homogenization equipment, e.g. mixer, stirrer, grinders, mills.
7.2 Analytical balance, (precise to at least 0,5 % of the test portion weight).
7.3 Equipment for determining different carbon types in solids
8 Procedure
8.1 General
8.2 Sample preparation and processing
8.3 Calibration
8.4 Measurement (Oxidative method A)
17 8.5 Measurement (Mixed oxidative/non-oxidative method B)
18 9 Evaluation
9.1 General
20 9.2 Control measurements
21 10 Expression of results
11 Test report
22 Annex A (informative)Performance characteristics
32 Annex B (informative)Cooling procedure for method B

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BS EN 17505:2023
$167.15