Generally recognized by a blue label, dry powder extinguishers are sometimes termed ABC extinguishers. These multi-reason extinguishers can be utilized on fire lessons A, B and C, meaning they are often used with combustible products, flammable gases and flammable liquids. Class B: In a category B system, Every system is https://sociallweb.com/story3988393/how-conventional-fire-system-can-save-you-time-stress-and-money