The Test and Calibration Laboratory of ZOK Sp. z o.o. is accredited by the Polish Centre for Accreditation for the performance of tests and measurements.
We perform the following tests:
- Testing the physical properties of hard black coal samples, including:
- determination of the total moisture content using the gravimetric method,
- determination of the moisture content of an analytical sample using the thermogravimetric method,
- determination of volatile components using the thermogravimetric method,
- determination of the ash content using the thermogravimetric method,
- determination of the real density according to the PN-G-04537 standard
- measurement of the diffusion coefficient and sorption capacity using the thermogravimetric method.
- Analyses of the qualitative and quantitative composition of gas samples extracted from black coal, and gas samples of a natural origin. We analyse gas samples using the gas chromatography method (GC-TCD), with respect to determining the amount of:
- oxygen (O2),
- carbon dioxide (CO2),
- methane (CH4),
- ethane (C2H6),
- propane (C3H8),
- nitrogen (N2),
- hydrogen (H2),
- ethylene (C2H4),
- carbon monoxide (CO).
- Badania składu jakościowego i ilościowego próbek powietrza pobranych na stanowiskach pracy metodą izolacyjną. Badania próbek powietrza wykonujemy metodą chromatografii gazowej (GC-TCD), w zakresie oznaczania zawartości:
- ditlenku węgla (CO2),
- propanu (C3H8),
- metanu (CH4).
- Na podstawie wyników badań fizyko-chemicznych próbek węgla oraz wyników badań składu jakościowego i ilościowego gazu pozyskanego z tych próbek, obliczamy metanonośność pokładów węgla kamiennego.
- On the basis of the qualitative and quantitative composition, we perform the following calculations for fuel gases:
- calorific value,
- heat of combustion,
- density,
- Wobbe index,
- total elemental carbon content,
- CO2 emission rate (based on the calculated gas composition).
- Under its PCA accreditation, the Test and Calibration Laboratory performs measurements of the amounts of the gaseous components of reference materials with respect to:
- the carbon monoxide content of a gas mixture,
- the methane content of a gas mixture,
- the carbon dioxide content of a gas mixture.
