The validity period of the registration of GAS CYLINDER filling shall be five years. Three months before the expiration of the validity period, the gas cylinder filling unit shall submit an application for renewal registration to the original registration unit.

Industrial gas in the transportation and storage of a certain risk, must be carried out in strict accordance with the requirements.

The refined hydrogen chloride gas has a wide range of uses because of little impurity (especially organic matter). The following is a brief description of its utilization.