Accredited calibration laboratory for air quality
The calibration laboratory of the Environment Agency Austria was accredited for the amount of ozone in purified air according to EN ISO/IEC 17025 on 29 July 2009 (identification number 0620, ÖKD 30).
The scope of accreditation was enlarged to cover amounts of nitrogen monoxide, sulphur dioxide and carbon monoxide in January 2012.
Volume flow was added to the scope in October 2013.
EN ISO/IEC 17025 specifies requirements for quality management systems as well as for the technical competence of accredited calibration and testing laboratories.
Key elements are a quality policy statement, a management system including a quality management handbook and requirements for documents and records, validated calibration methods based on international and European standards as well as regular participation in national and international proficiency testing schemes.
Accreditation means for our partners and customers:
- Official approval of the reliability of our calibration results and international acceptance of calibration certificates
- Independence and impartiality
- Comparability of calibration results throughout Europe
- International acknowledgement of competence
- High quality service including transparency
- Traceability of calibration results to national and international standards (etalons).
In September 2009 the accredited calibration laboratory was nominated by the Austrian Federal Office of Metrology and Surveying (BEV) as designated laboratory to hold the national etalon for ozone according to the Austrian Metrology Act (Maß- und Eichgesetz).
In April 2013 the scope of designation granted by the Austrian Federal Office of Metrology and Surveying (BEV) was extended to include sulphur dioxide, nitrogen monoxide, and carbon monoxide.
Scope of Accreditation
| Substance | Amount of substance | Matrix | Measurement uncertainty |
| O3 in air | 0 to 450 nmol/mol | purified air | (1.1 nomol/mol, 0.023 x 03) in nmol/mol |
| CO in air | 0 to 100 µmol/mol | purified air | 1.5 % relative, minimum 0,1 µmol/mol |
| SO2 in air | 0 to 400 nmol/mol | purified air | 1.5 % relative, minimum 2 nmol/mol |
| NO in air | 0 to 1000 nmol/mol | purified air and N2 | 1.5 % relative, minimum 3 nmol/mol |
| Volume flow | 2 bis 10.000 ml/min | purified air and N2 | 0.4% relative |
