D4.1 Hydrogen Chloride Optical Gas Standards (OGS) at PTB
- SMSI 2021
2021-05-03 - 2021-05-06
- SMSI 2021 - System of Units and Metreological Infrastructure
- D4 Advanced Calibration Approaches
- J. Nwaboh, Z. Qu, O. Werhahn, V. Ebert - Physikalisch-Technische Bundesanstalt, Braunschweig (Germany)
- 321 - 322
Accurate and reliable measurements of hydrogen chloride (HCl) are required in applications such asbiomethane quality control, clean room monitoring or stack emissions monitoring. In order to perform HCl measurements, standardized measurement methods as well as accurate reference gases are required to calibrate typical HCl measurement instruments. However, there is a lack of SI-traceable HCl reference gases and reliable quality control test methods for many of these applications, once future more challenging limit values have been put into force by new regulations to come. To this end, PTB is developing optical gas standards (OGS), e.g., for HCl quantifications in those applications and to complementing existing gaseous reference standards. In this paper, we report on the HCl-OGSs developed in PTB for different applications.