Flammable liquids in the plant site can increase fire hazard potential, whether they are in small or big quantity. There are various flammable liquids in the plant site, for instance gasolin e, solvents, paints and thinners. We can easily recognize them through their cheap 100ml eliquid flammable hazard sign.
As a reminder, I will illustrate briefly about its definition and classification. Please refer to the summary below when you need to determine flammable liquid.
Definition and Classification
Flammable and combustible liquids classification is mainly determined by the flash point and boiling point. Flash point is defined as the lowest temperature at which flammable liquid generates enough flammable vapors to ignite. Boiling point is defined as the temperature at which a liquid changes to vapor state at a certain pressure.
Flammable liquids are classified into:
Class IA: includes liquids that have flash points below 22.8oC and boiling points below 37.8oC. Class IB: includes liquids that have flash points below 22.8oC and boiling at or above 37.8oC. Class IC: includes liquids that have flash points at or above 22.8oC but below 37.8oC
Combustible liquids are classified into:
Class II: includes liquids that have flash points at or above 37.8oC but below 60oC. Class IIIA: includes liquids that have flash points at or above 60oC but below 93oC. Class IIIB: includes liquids that have flash points at or above 93oC.
Flash points and boiling points data can be easily found in Material Safety Data Sheet, especially in the Section III Physical and Chemical Data.
20 Important Checks
Now we are going to talk about 20 safety checks on flammable liquids storage and container. Check one by one and make sure we have left nothing.
1. Maintain the stock at the minimum inventory level. Over stock will surely increase fire risk.
2. The storage and location shall be separated from other materials and chemicals.
3. Store flammable liquid away from the processes.
4. Remove any source of ignition (sparks, hot surface, open flames, smoking material) from the storage and containers.
5. Provide clear label for each container.
6. Design appropriate ventilation to disperse flammable vapors from spill, leak or release from any process.
7. Use appropriate container with lid and spillage catchments trays.
8. If possible replace a flammable liquid with a less flammable one.
9. Eliminate flammable liquid from the process altogether.
10. Keep the container closed when it is not used.