To ensure the effective use and maintenance of fire extinguishers in the workplace, several key safety requirements and best practices should be followed:

1. Selection and Distribution: Employers are responsible for selecting and distributing fire extinguishers based on the type and class of fire hazards present in the workplace. For example, water, foam, or multipurpose dry chemical extinguishers can be used for Class A hazards, while Halon, carbon dioxide, or dry chemical extinguishers are suitable for Class B and C hazards .

2. Inspection and Maintenance: Fire extinguishers must be regularly inspected and maintained to ensure they are in operable condition. This includes checking for any signs of damage or corrosion and ensuring that the pressure gauge is within the operable range. Hydrostatic testing should be performed at specified intervals or when there is evidence of corrosion or physical damage .

3. Training and Education: Employees should be trained in the proper use of fire extinguishers, including understanding the types of fires they can extinguish and when it is appropriate to use them. Training should be conducted at the time of hiring and annually thereafter .

4. Accessibility: Fire extinguishers should be mounted in accessible locations where employees can easily reach them without the use of ladders or other portable devices. This ensures quick access during an emergency .

5. Alternate Protection: If an extinguisher is removed from service for maintenance, alternate equivalent protection must be provided, such as replacing it with another unit of equal rating or posting a fire watch .

6. Prohibited Agents: Certain extinguishing agents, such as carbon tetrachloride and chlorobromomethane, are prohibited due to their hazardous nature .

By adhering to these guidelines, employers can ensure that fire extinguishers are effectively integrated into their fire safety plans, providing a critical line of defense in the event of a fire.