, Sicilian: Missina; Latin: Messana, Greek: Î¼ÎµÏÏÎ®Î½Î±) is the capital of the Italian province of Messina.
Arc Rating: A value of the energy necessary to pass through any given fabric to cause with 50% probability a second or third degree burn. This value is measured in calories/cmÂ². The necessary Arc Rating for an article of clothing is determined by a Hazard/Risk Assessment and the resulting HRC. Usually measured in terms of ATPV or EBT. Simple put the ARC rating determines the protective characteristics of the fabric. The higher the ARC rating value the greater the protection.
Anyway, this is where we differentiate between an arc's measure and its length. The measure of an arc is the degree measurement of the angle that intercepts the arc. The measure of an arc is written as mAB. Notice that I said it's the degree measurement.