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Normas BSI – AENOR
BS EN 13342:2000

BS EN 13342:2000

Characterization of sludges. Determination of Kjeldahl nitrogen

Fecha:
2000-10-15 /Confirmed
Comité:
EH/5
Equivalencias internacionales:

EN 13342:2000

Resumen:
This method describes a procedure for the determination of "Kjeldahl Nitrogen" in sludge and sludge products. The digestion is catalysed by selenium or copper, the temperature being raised by a high concentration of sodium sulphate. Although wet samples are normally taken for analysis, it is recognised practice to report results on a dry mass basis (g/kg). Consequently, it is also necessary to determine the dry residue of the homogenised sample used for analysis (see EN 12880).
Keywords:
Dry weight determination, Sludge, Sewage treatment, Kjeldahls method, Sulfates, Chemical analysis and testing, Selenium, Interferences (chemical), Water treatment, Nitrogen, Determination of content, Copper, Sodium
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