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Wayne3210
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- µgm/gm PPM concentrations close enough?
Been a while since I was here...thanks in advance for any replies.
I'm in the HVAC service business and part of that "service" involves locating (or attempting to locate) refrigerant leaks. And that usually involves the use of some sort of electronic hand held detector. Thing is, not all detectors are the same and lately I've been comparing detector performance (sensitivity) via a "homemade" calibration gas.
The calibration gas is concocted by introducing a known weight (µgm) of a refrigerant into a bucket containing a calculated weight (gm) of air, based on published "normal" air conditions. So, my "defined" PPM ratio is µgm/gm.
Is that close enough for a backyard chemistry lab?
I'm in the HVAC service business and part of that "service" involves locating (or attempting to locate) refrigerant leaks. And that usually involves the use of some sort of electronic hand held detector. Thing is, not all detectors are the same and lately I've been comparing detector performance (sensitivity) via a "homemade" calibration gas.
The calibration gas is concocted by introducing a known weight (µgm) of a refrigerant into a bucket containing a calculated weight (gm) of air, based on published "normal" air conditions. So, my "defined" PPM ratio is µgm/gm.
Is that close enough for a backyard chemistry lab?