Bacharach method

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The Bacharach method (also called Bacharach test ) is a manual method for the semi-quantitative determination of the soot emissions from combustion systems. A standardized procedure of this method is used to determine the soot number in small combustion systems.

background

The method, named after an American manufacturer of measuring instruments, became the standard for determining the soot number in oil-fired heating systems in the mid-1960s. A defined volume of exhaust gas is sucked through a white paper filter and thus blackened. The soot number is determined by a color comparison with a corresponding scale containing ten fields with graduated degrees of blackness. Alternatively, the filter can also be evaluated photometrically . In this way, soot numbers can be determined in tenths of a step.

That in the standard DIN 51402-1 testing of exhaust gases from oil fires; Visual and photometric determination of the soot number The method described for determining the soot number is based on the Bacharach method.

literature

  • Andreas Schleicher, Wolfgang Hartwig: Comments on the soot number measurement according to Bacharach (DIN 51 402). In: Dust - cleanliness. Air . 50, No. 6, 1990, ISSN  0949-8036 , pp. 235-239.

Individual evidence

  1. ↑ DIN EN 15378: 2008-07 Heating systems in buildings; Inspection of boilers and heating systems; German version EN 15378: 2007. Beuth Verlag, Berlin, p. 42.
  2. ↑ a b c d e Franz Joseph Dreyhaupt (Ed.): VDI-Lexikon Umwelttechnik. VDI-Verlag Düsseldorf, 1994, ISBN 3-18-400891-6 , p. 182.
  3. ^ Peter Bruckmann, Ulrich Pfeffer, Volker Hoffmann: 50 years of air quality control in Northwestern Germany - how the blue skies over the Ruhr district were achieved. In: Hazardous substances - cleanliness. Air . 74, No. 1/2, 2014, ISSN  0949-8036 , pp. 37-44.
  4. ^ A b Franz Joseph Dreyhaupt (Ed.): VDI-Lexikon Umwelttechnik. VDI-Verlag Düsseldorf, 1994, ISBN 3-18-400891-6 , p. 1002.
  5. ↑ Karl-Wilhelm Bühne: A contribution to the continuous emission monitoring of the soot number 1 in light oil firing. In: Dust - cleanliness. Air. 48, No. 2, 1988, ISSN  0949-8036 , pp. 67-69.