B-number ratings are used by the US Coast Guard regulations to identify the necessary capacity of a fire extinguisher, depending upon the type of extinguishing agent used. Only extinguishers meet all USCG requirements can say "USCG approved".
Class B fires involve flammable or combustible liquids such as gasoline, kerosene, grease and oil.
The numerical rating BEFORE the letter B, for UL ratings of class B extinguishers, indicates the approximate number of square feet of fire it can extinguish (i.e., with no significant depth).
The numerical rating (I, II, III, IV, V) AFTER the letter B indicates Coast Guard classification. For example, a UL 5-B:C, rated for 5 sq ft of flammable liquid fire, would be a USCG B-I extinguisher (with 2 pounds of dry chemical).
To obtain a USCG B-II rating you would need the equivalent of 10 pounds of dry chemical, such as having two UL 3-A, 40-B:C extinguishers, or a 15-pound CO2 extinguisher, or 2 1/2 gallons of AFFF "foam" (UL 3-A:20B).
A 20-pound dry-chemical (120-B:C) would meet USCG B-III requirements, 30 pounds for B-IV and 50 pounds for B-V. Similarly, carbon-dioxide or foam-type extinguishers of various capacities fall within USCG ratings (e.g. 4 pounds CO2 for B-I, 15 pounds for B-II, etc).
The b-2 has about twice the capacity of a b-1.
CLass 1 Class 2 class 3 16-26ft 26 ft-40 ft 40ft-65ft 1 B1 2 b1 or 1 b2 3 b1 or 1 b1 and 1 B2 Im taking a boating class currently
No, you cannot work on a B1/B2 visa.
Yes, you can work on a B1/B2 visa.
No, a B1/B2 visa does not allow you to work in the USA.
A B1/B2 visa allows for both business (B1) and tourism (B2) purposes, while a B2 visa is specifically for tourism and visiting friends or family in the United States.
A B1/B2 visa is typically valid for 10 years.
A B1/B2 visa is typically valid for 10 years.
No, a person with a B1/B2 visa is not allowed to work in the USA.
No, individuals with a B1/B2 visa are not allowed to work in the USA.
Yes, B1 and B2 visas allow individuals to visit the USA for business (B1) or tourism (B2) purposes, but they do not permit employment or long-term stays.
There are an infinite number of solutions. Blank1 = 1 and blank2 = 15 B1 = -1 and B2 = -15 B1 = 2 and B2 = 7.5 B1 = 3 and B2 = 5 B1 = 1.1 and B2 = 15/1.1 etc, etc.