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Understanding ppm and ppm-m 

Understand the important differences between ppm and ppm-m when it comes to methane measurement.

In this, you'll learn:

• Concentration vs. Emission Rate: Understand the different ways methane can be measured and how.
• What is ppm-m: Learn what path-integrated gas concentration is. 
• Examples of Both: See the measurement types in action and learn when to use each.