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Discussion Boards => Off-Topic => Topic started by: joannaingram84 on August 06, 2011, 12:33:55 am

Title: fire extinguisher rating terms, part one
Post by: joannaingram84 on August 06, 2011, 12:33:55 am
Fire extinguishers are rated by size of fire (number) and by type of fire (letter). The most common type is "10 ABC."
No. 1: Will extinguish a stack of fifty burning sticks, 20 inches long; or will put a 2.5 sq. ft. area of burning naptha.
No.10: Will extinguish a fire 10 times larger than a No. 1 fire.

source Backstage Handbook: An Illustrated Almanac Of Technical Information by Paul Carter
Title: Re: fire extinguisher rating terms, part one
Post by: Consultsone on August 07, 2011, 10:12:40 pm
Is this for a safety class or in service?
The ratings need to be more clear in my opinion. Most people don't have the time or ability to hold their stress back to take a moment to read the label.
I have seen times when people make the fire worse or use the wrong one and ruin what could have been salvaged if the right extinguisher was used.