Question: What are constant pressure charts? Answer: Constant pressure charts like the 500 mb chart shown below may seem obvious to interpret. It has many features similar to what you might see on the ...

A surface pressure trough is an elongated area of low pressure that signifies a wind shift and pressure change, similar to a frontal zone but often without distinct temperature or moisture differences ...

This video will show how to run a nitrogen BET surface area analysis with carbon black reference material on the Micromeritics TriStar II Plus Surface Area and Porosity Analyzer.