Ldar leak detection standard

Legal analysis: when the gas molecule to be tested is irradiated by ultraviolet light, it absorbs the energy of ultraviolet light and becomes excited molecules, which ionize to produce positive ions and electrons. When a voltage is applied between the electrodes, the ion flow generated by molecular ionization is collected by one electrode and converted into a current signal, and the current is amplified and the concentration value is displayed. After the ions are detected, they recombine into the original gas and vapor, so PID is a nondestructive detector. The gas detected by PID can still be collected for further determination.

Legal basis: Article 3 of the Constitution of People's Republic of China (PRC) * * * People's Republic of China (PRC) state organs practice the principle of democratic centralism.

The National People's Congress and local people's congresses at various levels are democratically elected, accountable to the people and supervised by the people.

The state administrative organs, supervisory organs, judicial organs and procuratorial organs are all produced by the National People's Congress, responsible to and supervised by the National People's Congress.

The division of functions and powers between central and local state organs follows the principle of giving full play to local initiative and enthusiasm under the unified leadership of the central authorities.