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ALS-NA-WL-WI-054

The term TOC (Total Organic Carbon) is used to describe the total content of organically bound carbon in dissolved and undissolved compounds. By digestion with sulphuric acid and peroxodisulfate, carbon-containing compounds are transformed into carbon dioxide. This reacts with an indicator solution, the colour of which is determined photometrically. Inorganically bound carbon (dissolved carbon dioxide and anions of carbon dioxide) is expelled in gaseous form beforehand by acidification. The digestion is analogous to APHA 5310 D.


APHA 5310 D.


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No

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