A large amount of flammable substances may be used in the processes of oil & gas, chemicals, pharmaceuticals, food, and electronic industries, and these substances may form an flammable atmosphere on site. When the ignition source appears, it will cause flash or explosion, causing very serious consequence.

Hazardous area classification is one of the important inputs for hot work management.

Zhunyun Consulting can carry out HAC according to Chinese standards (GB 50016, GB 50058, GB3836, GB 12476), European directives and standards (ATEX and IEC60079), and American standards (NFPA30, 70, 497, 499).

Common steps include:

1. Determine Needs of HAC

2. Obtain process safety information

3. Identify the source of release

4. Determine the release level

5. Determining zoning and area (using quantitative and qualitative models)

6. Recording and Documentation