Multipurpose dry-chemical fire extinguisher
Multipurpose dry-chemical fire extinguisher means an extinguisher having a rating of at least 2A:10B:C and containing a nominal 4.5 pounds or more of dry-chemical agent.
Source
30 CFR § 56.2
Scoping language
The following definitions apply in this part. In addition definitions contained in any subpart of part 56 apply in that subpart. If inconsistent with the general definitions in this section, the definition in the subpart will apply in that subpart: