Class 3 Dangerous Goods Fire

If a fire that uses metal-based third-class hazardous materials such as lithium and potassium, if the handling method is incorrectly traceable, it will ignite and cause injured to ignite.

Class 3 dangerous goods have spontaneously ignite and water-free properties and have limited fire extinguishing methods, so once a fire occurs, it is necessary to perform appropriate fire extinguishing work using a fire extinguishing agent that properly responds to the substance there is.

We ask that business establishments handling Class 3 dangerous goods should refer to the following items and ensure proper management and handling.

While cleaning the lithium attached to the lithium furnace was being cleaned at a research facility, it accidentally soaked in water, causing flames and sparks,injured.

At the research facility, the potassium in the laboratory table was washed with toluene, it was accidentally immersed in water and ignited the surrounding combustible materials.

Class 3 hazardous materials are solid or liquid that spontaneously ignite in the air (spontaneous substances such as yellow phosphorus)), ignite in contact with water, or generate flammable gas (water-prohibited substances (for example, lithium, etc.)) and those that have both spontaneous and water-free properties (such as sodium and potassium).

Regarding storage, handling and transportation, spontaneous substances need to avoid approaching and heating the fire source, and to prevent contact with air. In addition, water-free substances need to avoid contact with water, and storage should be subdivided. Care must be taken not to place combustible materials around each substance.

Class 3 Dangerous Goods that are generally considered to be effective in extinguishing Class 3 dangerous materials include dried sand, expanding stones, or pearlstone.

Dangerous goods under the Fire Services Act are specified by a Cabinet Order concerning Dangerous Goods Regulations. The designated quantity of Class 3 dangerous goods range from 10kg to 300kg due to differences in product names and properties.

When storing or handling dangerous goods, permission and notification are required depending on the quantity.

1. When the ratio to the designated quantity is 1 or more ... Permission or approval under the Fire Services Act
2. When the ratio to the designated quantity is 0.2 or more and less than 1 ... Notification based on the Yokohama City Fire Prevention Ordinance (Small Dangerous Goods)

When storing or handling multiple dangerous goods, the ratio to each designated quantity will be added.