What is the reason for the annual inspection of the gas detector
Both the gas alarm device and the toxic and harmful gas detector need to be inspected annually, and the state stipulates that it should be inspected once a year! Compulsory inspection is usually only for ex-factory inspection and trade measurement, and the state will only make regulations such as "must use effective..." for certain occasions.
The "effectiveness" mentioned here includes that some equipment must pass regular inspections. Dangerous places like chemical plants are also required to inspect and calibrate combustible gas detection and alarm equipment according to such regulations. The country makes mandatory certification for gas detectors. Such as explosion-proof certificate, etc.
The service life of the combustible gas detector sensor itself is generally 3-5 years, and it has a great relationship with the environment of the place of use. Industrial products of international famous brands need to be inspected once every 6 months.
The following two national standards are commonly used standards related to gas alarms:
1. GB/T 12474-2008 "Method for Determination of Explosive Limits of Combustible Gases in Air";
2. GB 50493-2009 "Petrochemical Combustible Gas and Toxic Gas Detection and Alarm Design Code".
The regular annual inspection of combustible gas alarm is the guarantee of daily use. According to the national regulations, the legal metrology department or legally authorized organization shall provide evidence through experiments and provide evidence to determine that the indication error of the measuring instrument meets the specified requirements in accordance with the verification regulations.
The combustible gas alarm is a measuring instrument that is subject to statutory mandatory verification. The quality inspection and measurement department should verify the combustible gas alarm in use every year, and issue a verification certificate to ensure that it meets the measurement performance.
