Final answer:
Typical inspection and test intervals for fire extinguishers are determined by national and local codes and regulations. In the United States, the NFPA establishes guidelines for fire extinguisher maintenance, including monthly inspections and more thorough inspections at certain intervals. The specific intervals depend on the type of fire extinguisher.
Step-by-step explanation:
Inspection and test intervals for fire extinguishers are typically determined by national and local codes and regulations. In the United States, the National Fire Protection Association (NFPA) establishes guidelines for the inspection, testing, and maintenance of fire extinguishers in its standard NFPA 10. According to NFPA 10, fire extinguishers should be inspected monthly to ensure that they are in their designated locations, visible, and not obstructed. In addition to monthly inspections, fire extinguishers should undergo a more thorough inspection and testing at certain intervals. These intervals typically range from 1 to 6 years, depending on the type of fire extinguisher. For example, dry chemical extinguishers should be inspected and tested every 6 years, while water and foam extinguishers should be inspected every 5 years.