Extract of VDI 3950 Part 1 published by
Calibration of automatic emission measuring instruments
Article 29 of the Federal Immission Control Act
For large furnaces (firing thermal capacity >= 50 MW, using gaseous fuels <= 100 MW) the regulations of the Large Furnace Order (13th BImSchV)  apply. According to article 25 of this Order, furnaces for solid and liquid fuels shall be equipped with measuring devices for particulate emissions, carbon monoxide, nitrogen oxides and sulphur dioxide. For furnaces using gaseous fuels a continuous measurement of CO is required, and in the case of very large installations (firing thermal capacity >400MW) the measurement of NO, as well.
For waste incineration plants the regulations of the Order on Incineration Plants for Waste and Similar Combustible Materials (17th BImSchV)  apply. According to article 11 and in combination with articles 4 and 5, the facilities shall be equipped with measuring devices for continuous monitoring of carbon monoxide, total dust, organic chlorine and fluorine compounds, sulphur and nitrogen oxides, as well as for the oxygen content.
For surface treatment facilities, dry cleaning and textile finishing facilities as well as extracting plants regulations of the Order on Emission Limitation of Highly Volatile Halogenated Hydrocarbons (2nd BImSchv)  apply. Articles 3 to 5 prescribe the performance of continuous monitoring of the mentioned facilities.
For furnaces subject to licensing, conditions for continuous emission monitoring are contained in clause 126.96.36.199 of the Technical Instructions on Air Quality Control (TA Luft) . For all other installations subject to licensing, clause 3.2.3 of TA Luft specifies the pre-conditions for continuous monitoring of emission. Only measuring instruments which have successfully satisfied stated minimum requirements in a suitability test, are approved for continuous measurements [6; 7].
Extract of VDI 2066 Part 4 published by
Particulate Matter Measurement
Measurement of Particulate Matter in Flowing Gases