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Hessisches Landesamt für Naturschutz, Umwelt und Geologie

Stack Emission Proficiency Tests

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ESA and legal background

The Hessian Agency for Nature Conservation, Environment and Geology (HLNUG) offers stack emission proficiency tests. These were designed to meet the requirements set by §16 para. 4 No. 7, 41. BImSchV (41st Federal Immission Control Ordinance) for measuring facilities authorised to perform services in accordance with §29b BImSchG (Federal Immission Control Act). Nevertheless, other interested measuring institutes are welcome to participate in HLNUG’s stack emission proficiency tests, too.

The proficiency tests include sampling, which is carried out on HLNUG’s Emission Simulation Apparatus (ESA). The ESA is a factory chimney replica, on which volume flow, temperature, and the concentrations of various pollutants can be controlled.

The ESA can also be used for training purposes in the field of emission measurements. Furthermore, the ESA can be rented for tests and validation programmes of new measurement procedures and emission measurement devices.

For additional Information, see:


Proficiency test programmes

HLNUG currently offers the following stack emission proficiency test programmes:

For upcoming proficiency test rounds, please see our schedule.

If you are interested in participating in one of these proficiency tests, please contact us.

Please note that all proficiency tests include the sampling procedure. The sampling takes place in Kassel, Germany, on HLNUG's Emission Simulation Apparatus (ESA).

All results from previous rounds of our proficiency tests can be found in our annual reports.

 

Dust

Objective of the dust stack emission proficiency test is the determination of mass concentrations of particulate flue gas components (conforming to EN 13284-1), and of heavy metals (conforming to EN 14385), as well as the measurement of basic conditions of the flue gas (conforming to EN 15259).

The proficiency test includes the following components:

  • dust
  • heavy metals (Cd, Co, Cr, Cu, Mn, Ni, Pb, V)
  • basic flow conditions (flow velocity, temperature, water vapour concentration, static pressure, volume flow)

For details on the dust stack emission proficiency test programme, including remarks on the required sampling procedure, the time schedule, and the criteria for proficiency assessment, see the information sheet.

The general guidelines as acclaimed by the Conference of Ministers for Environment (UMK) and the Federation/Federal States Working Group on Immission Protection (LAI) can be found in the specifications for this proficiency test.

The sampling for this proficiency test takes place on Monday to Tuesday (2 days, see schedule). The participation fee is currently € 2950,-.

 

Gas

Objective of the gas stack emission proficiency test is the determination of mass concentrations of the inorganic components sulfur dioxide (SO2, conforming to EN 14791), nitrogen oxides (NOx, conforming to EN 14792), and carbon monoxide (CO, conforming to EN 15058); of organic compounds (conforming to EN 13649), total organic carbon (TOC, conforming to EN 12619), and formaldehyde (conforming to VDI 3862, Part 2, 3, or 4) as well as the measurement of basic conditions of the flue gas (conforming to EN 15259).

The proficiency test includes the following components:

  • inorganic gases (SO2, NOx, CO)
  • organic compounds (formaldehyde, ethylbenzene, toluene, xylene)
  • total organic carbon (TOC)
  • basic flow conditions (flow velocity, temperature, water vapour concentration, static pressure, volume flow)

For details on the gas stack emission proficiency test programme, including remarks on the required sampling procedures, the time schedule, and the criteria for proficiency assessment, see the information sheet.

Parallel to the measurements on the ESA, we offer a verification of the participants' span gases. For further Information, see the respective information sheet.

The general guidelines as acclaimed by the Conference of Ministers for Environment (UMK) and the Federation/Federal States Working Group on Immission Protection (LAI) can be found in the specifications for this proficiency test.

The sampling for this proficiency test takes place on Wednesday to Friday (3 days, see schedule), arrival in Kassel on Tuesday is required. The participation fee is currently € 3250,-.

 

Odour

Objective of the odour stack emission proficiency test is the determination of odour concentrations (as ouE/m³, conforming to EN 13725), as well as the measurement of basic conditions of the flue gas (conforming to EN 15259).

The proficiency test includes the following components:

  • n-butanol
  • three other substances or defined mixtures
  • basic flow conditions (flow velocity, temperature, water vapour concentration, static pressure, volume flow)

For details on the odour stack emission proficiency test programme, including remarks on the required sampling procedures, the time schedule, and the criteria for proficiency assessment, see the information sheet.

The general guidelines as acclaimed by the Conference of Ministers for Environment (UMK) and the Federation/Federal States Working Group on Immission Protection (LAI) can be found in the specifications for this proficiency test.

The sampling for this proficiency test takes place during one forenoon (see schedule). The participation fee is currently € 1750,-.