<p class="MsoBodyText"><span lang="EN-GB">This document specifies a method to determine the total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) in the form of free ammonia, ammonium, nitrite, nitrate and organic compounds capable of conversion to nitrogen oxides.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">Cyanide, cyanate and particles of elemental carbon (soot), when present in the sample, can be determined together with the organic carbon.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">Dissolved nitrogen gas (N<sub>2</sub>) is not determined.</span></p>
<p class="Note"><span lang="EN-GB">NOTE<span style="mso-tab-count: 1;"> </span>Generally, the method can be applied for the determination of total carbon (TC) and total inorganic carbon (TIC) – see Annex A.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">The method is applicable to water samples (e.g. drinking water, raw water, ground water, surface water, sea water, waste water, leachates).</span></p>
<p class="MsoBodyText"><span lang="EN-GB">This document is applicable to determination of TOC and DOC ≥1 mg/l and TNb and DNb ≥1 mg/l. The upper working range is restricted by instrument-dependent conditions (e.g. injection volume). Higher concentrations can be determined after appropriate dilution of the sample. The determination of concentrations <1 mg/l is dependent on instrument conditions applying appropriate calibration.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">For samples containing volatile organic compounds (e.g. industrial waste water), the application of the difference method can be considered – see Annex A.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">The procedure is carried out by automated analysis.</span></p>
Registration number (WIID)
85798
Scope
<p class="MsoBodyText"><span lang="EN-GB">This document specifies a method to determine the total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) in the form of free ammonia, ammonium, nitrite, nitrate and organic compounds capable of conversion to nitrogen oxides.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">Cyanide, cyanate and particles of elemental carbon (soot), when present in the sample, can be determined together with the organic carbon.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">Dissolved nitrogen gas (N<sub>2</sub>) is not determined.</span></p>
<p class="Note"><span lang="EN-GB">NOTE<span style="mso-tab-count: 1;"> </span>Generally, the method can be applied for the determination of total carbon (TC) and total inorganic carbon (TIC) – see Annex A.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">The method is applicable to water samples (e.g. drinking water, raw water, ground water, surface water, sea water, waste water, leachates).</span></p>
<p class="MsoBodyText"><span lang="EN-GB">This document is applicable to determination of TOC and DOC ≥1 mg/l and TNb and DNb ≥1 mg/l. The upper working range is restricted by instrument-dependent conditions (e.g. injection volume). Higher concentrations can be determined after appropriate dilution of the sample. The determination of concentrations <1 mg/l is dependent on instrument conditions applying appropriate calibration.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">For samples containing volatile organic compounds (e.g. industrial waste water), the application of the difference method can be considered – see Annex A.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">The procedure is carried out by automated analysis.</span></p>
