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2. Fire extinguisher - Wikipedia

   en.wikipedia.org/wiki/Fire_extinguisher

   Fire extinguishing capacity is rated in accordance with ANSI/UL 711: Rating and Fire Testing of Fire Extinguishers. The ratings are described using numbers preceding the class letter, such as 1-A:10-B:C. The number preceding the A multiplied by 1.25 gives the equivalent extinguishing capability in gallons of water.

3. Fast Flow Extinguishers - Wikipedia

   en.wikipedia.org/wiki/Fast_Flow_Extinguishers

   The larger the burn pan fire, the larger the rating and the longer the extinguisher must discharge to be able to handle the larger volume of fire before running out. For a given size extinguisher the resulting effect is a lower flow rate, resulting in a higher UL rating. Generally for same size extinguishers (agent capacity)

4. Fire-resistance rating - Wikipedia

   en.wikipedia.org/wiki/Fire-resistance_rating

   A fire-resistance rating typically means the duration for which a passive fire protection system can withstand a standard fire resistance test. This can be quantified simply as a measure of time, or it may entail other criteria, involving evidence of functionality or fitness for purpose.

5. Purple-K - Wikipedia

   en.wikipedia.org/wiki/Purple-K

   Purple-K, also known as PKP, is a dry-chemical fire suppression agent used in some dry chemical fire extinguishers. [1] It is the second most effective dry chemical in fighting class B (flammable liquid) fires after Monnex (potassium allophanate), and can be used against some energized electrical equipment fires (USA class C fires). [2]

6. ABC dry chemical - Wikipedia

   en.wikipedia.org/wiki/ABC_dry_chemical

   The powder also works to interrupt the chemical reaction of fire, so these extinguishers are extremely effective at putting out the fire. Pressure is generated by gas cartridges stored inside the cylinder. Its force will last for 45 seconds and can reach 3–4.5 metres (10–15 ft). [3] [1]

7. UL (safety organization) - Wikipedia

   en.wikipedia.org/wiki/UL_(safety_organization)

   The UL enterprise [4] is a global private safety company headquartered in Northbrook, Illinois, composed of three organizations, UL Research Institutes, UL Standards & Engagement and UL Solutions. Established in 1894, the UL enterprise was founded as the Underwriters' Electrical Bureau (a bureau of the National Board of Fire Underwriters ), [ 5 ...