Edwards Signaling SD-T36 AIR SAMPLING TUBE, 36"

[Music] I'm going to go over how to calibrate a personal air sampling pump with an electronic calibrator which is a primary standard air sampling pumps need to be calibrated directly before and after each sample in order to accurately calculate the volume of air that's been sampled you should also calibrate your pumps at a temperature and elevation or pressure that's as similar as possible to your sampling location first we want to ensure that our pump is fully charged and we need to have it running for at least five minutes before performing the calibration during this time we'll prepare our media or our sampling cassettes and inspect our tubing for cracks and leaks also inspect your pump to verify that it appears to be working and isn't on its last leg make sure that it doesn't look like it's been recently dropped to perform the calibration will use the same media type and sampling dr