The Clifford Hall 423 (CH423) Calibration Lab has three full height workbenches and four half-height wall benches. All benches have access to A/C power and wired internet. Pumps and compressors are available to supply vacuum and compress air. A fume hood vents air outside the lab. The Calibration Lab has holders for three full size gas cylinders. Windows computers, along with an M200 Science Engineering Associates Data Acquisition System are available to collect data. Labview data acquisition software is available on lab desktop computer. Pressure, volumetric flow, temperature and dew point temperature standards are available. The CH423 Wiki page provides details on equipment available in the lab. The diagram below corresponds to the picture above and illustrates calibrations of cloud condensation nuclei instruments.