When the HRC method is used the arc flash warning label is to include the highest hazard/risk category (HRC) for the equipment. Items 130.5(C)(1)a through c do not apply. They are only applicable when the incident energy (calculation) method is used.
Wool s natural ability to absorb and transmit water vapor is of unique importance in maintaining Thermophysiological Comfort, a state in which the individual is free from thermal strain. The Humanitarian Blanket provides the necessary requirements for emergency and humanitarian relief situations.
This complicates matters when it comes to determining how much of the greenhouse effect each gas produces. Here's an example. Water vapor absorbs IR photons with wavelengths of 790 nanometers, 940 nm, and 1,375 NM (and at several other wavelengths, too!).