These girl names were at the top of their popularity during 1970-1979 (usage of 0.322%) and have become much less widespread since (usage 0.14%, down 56.5%), with the form Jolene becoming less fashionable. Shown below is an analysis of the popularity of the girl name Jolena and affiliated names.hese girl names were at the top of their popularity during 1970-1979 (usage of 0.322%) and have become much less widespread since (usage 0.14%, down 56.5%), with the form Jolene becoming less fashionable. Shown below is an analysis of the popularity of the girl name Jolena and affiliated names.
Groups further define the hazard in Class I and Class II areas. In Class I, there are Group A (Acetylene and similar gases), Group B (Hydrogen and similar gases), Group C (Ethylene and similar gases) and Group D (Propane and similar gases). Hazardous dusts and fibers (Class II & III respectively) are not treated in Article 505.
Class A: Ordinary combustibles. Class A fires consist of ordinary combustibles such as wood, paper, fabric, plastic, and most kinds of trash. Class B/C: Flammable liquid and gas. A CO. 2 fire extinguisher rated for flammable liquids and gasses. These are fires whose fuel is flammable or combustible liquid or gas.