defr Glossar

Smoke spot number

Measurement unit for the degree of blackening as defined by DIN 51402 Part 1.

The soot content of flue gas is determined by means of an individual measurement, namely quantitative retention on a filter of silica fibre material followed by measurement of the reflectance. The smoke spot number is then obtained by conversion according to VDI 2066, Sheet 8.

The German Federal Immission Control Act prescribes that combustion systems in the 5 MW to 25 MW range fired by light fuel oil must be equipped with a continuous measurement system capable of maintaining smoke spot number 1 with sufficient reliability. This is usually done with scattered light measurement either directly in the stack or using extractive sampling. The latter method protects the photometer against heat exposure and corrosion by the flue gas. Dust measurement; Flue gas monitoring

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Leonardo Pio
Responsible for applications: Water, beverages & food, industrial processes for the cantons: AG, BE-DE, BL, BS, LU, NW, OW, TI, UR, SO, TI, VS-DE & ZG
Jacques Savary
Responsible for applications: Water, Beverages & Food, Industrial Processes for the cantons: BE-FR, FR, GE, JU, NE, VD & VS-FR
Vakant
Responsible for applications: Water, beverages & food, industrial processes for the cantons: AI, AR, FL, GL, GR, SH, SG, SZ & TG
Ihr Businesspartner für Getränke & Lebensmittel:
Für Wasser, Industrielle Prozesse, Verkehr & Umwelt kontaktieren Sie unseren Hauptsitz.

Your distribution partner for beverages & food:
For water, industrial processes, traffic & environment please contact our headquarters

Ihr Businesspartner für Getränke & Lebensmittel:
Für Wasser, Industrielle Prozesse, Verkehr & Umwelt kontaktieren Sie unseren Hauptsitz.

Your distribution partner for beverages & food:
For water, industrial processes, traffic & environment please contact our headquarters

Contact headquarters

Ralf Isenberg
Sales Manager ScrubberGuard
Öffnungszeiten:
Montag–Freitag 08:00–12:00 und 13:30–17:00
Feiertage & Betriebsferien:
Seppitag: 19. März 2026, Ostern: 03. – 06. April 2026, Auffahrt: 14. Mai 2026, Pfingstmontag: 25. Mai 2026, Fronleichnam: 4. Juni 2026, Bundesfeiertag: 01. August 2026, Maria Himmelfahrt: 15. August 2026, Allerheiligen: 01. November 2026, Maria Empfängnis: 08. Dezember 2026, Betriebsferien: 24. Dezember 2026 – 03. Januar 2027
Opening hours:
Monday–Friday 08:00am–12:00pm und 1:30pm–5:00pm
Public & company holidays:
St Joseph's Day: 19 March 2026, Easter: 03 – 06 April 2026, Ascension Day: 14 May 2026, Whit Monday: 25 May 2026, Corpus Christi: 4 June 2026, Federal Holiday: 01 August 2026, Assumption Day: 15 August 2026, All Saints Day: 01 November 2026, Conception of Mary: 08 December 2026, Company holidays: 24 December 2026 – 03 January 2027