Basic procedures and standards for the prevention of liquid chemical dangerous goods leakage accidents

First, protection

(1) Determine the appropriate degree of protection according to the toxicity of the leaked liquid and the designated hazardous area;
(2) Standards for protection level classification:

(3) Protection standard table:

Second, inquiries

(1) The situation of persons in distress;
(2) Container reserves, leakage, leakage time, location, diffusion range;
(3) Peripheral residents, terrain, power supply, fire source, etc.;
(4) The unit's fire protection organization and facilities;
(5) Process measures, on-site personnel disposal opinions.

Third, the detection

(1) search for persons in distress;
(2) The use of a detector to measure the leakage of substances, vapor concentration, diffusion range;
(3) Identify the dangers of facilities, buildings (buildings) and dangerous sources that may cause explosion burning;
(4) confirm the operation of the fire protection facilities;
(5) Determine the offensive and defensive routes and positions;
(6) Site and surrounding pollution.

Fourth, alert

(1) Determine the warning area according to the inquiry and the investigation conditions;
(2) The alert area is divided into critical areas, medium-risk areas, light-risk areas, and safe areas, and warning signs for facilities are installed. In the safe areas, isolation barriers are established as required;
(3) Reasonably set up entrances and exits, strictly control the entry and exit of personnel and vehicles in various regions, conduct safety inspections, and register one by one.