What does ppm stand for?
ppm stands for "Personal Photoionizations Monitor"
How to abbreviate "Personal Photoionizations Monitor"?
"Personal Photoionizations Monitor" can be abbreviated as ppm
What is the meaning of ppm abbreviation?
The meaning of ppm abbreviation is "Personal Photoionizations Monitor"
What does ppm mean?
ppm as abbreviation means "Personal Photoionizations Monitor"
