1 Cinquains are five lines long. 2  They have 2 syllables in the first line, 4 in the second, 6 in the third, 8 in the fourth line, and just 2 in the last line. 3  Cinquains do not need to rhyme, but you can include rhymes if you want to.
â¢ COMBUSTIBLE MATERIAL (noun). The noun COMBUSTIBLE MATERIAL has 1 sense: 1. a substance that can be burned to provide heat or power. Familiarity information: COMBUSTIBLE MATERIAL used as a noun is very rare. COMBUSTIBLE MATERIAL (noun). The noun COMBUSTIBLE MATERIAL has 1 sense: 1. a substance that can be burned to provide heat or power. Familiarity information: COMBUSTIBLE MATERIAL used as a noun is very rare.
However, with the almost limitless number of chemicals developed for home and industry, many products fall into other subcategories. For example, hydrogen peroxide, a common household chemical, is an oxidizer. It is important to identify the physical hazards products present and understand them. Because of our familiarity with fire, the physical hazards of combustible liquids and flammables are easiest to address. With few exceptions, a combustible liquid has a flashpoint at or above 100 F, but below 200 F. Flammables are divided into three categories by physical state (gas, liquid and solid).