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What Does 4 A 20 Bc Mean? [Solved]
For example, an extinguisher that is rated 4A:20B:C indicates the following: The A rating is a water equivalency rating. Each A is equivalent to 1-1/4 gallons of water. 4A=5 gal. of water.
BC and AD…in five minutes or less
Here’s a quick explanation of what
AD and BC Explained (as well as CE and BCE)
Understand what the abbreviations AD,
What Is BC and AD? | What Does CE & BCE Mean? | AD and BC Explained
Indra Vikram sir tells us about "
