14 65- Critical Sour areas An area anywhere within the Emergency Planning Zone (EPZ) of a Critical Sour area.
66- How many fields you have regarding hydrocarbon There are two fields (greenfield and brownfield)
67- What is the meaning of brown and greenfield The meaning of green is an area has no hydrocarbon, And the meaning of brown is the area has hydrocarbon
68- What area consider as brownfield Process facility and hydrocarbon area
69- What area consider as greenfield Non
hydrocarbon area 70- Why we use no permit job and may have high risk in job at greenfield We use the no permit job in greenfield because there is no hydrocarbon gas
71- What is a Zone classification Zone classification is to differentiate the area to identify the locations which is high risky medium risk, and low risk.
72- What is Zone Ob In Zone O is High risk area, Whore flammable/explosive atmosphere always present in normal operations. E.g., unburning flare area and leaked areas well as the top storage tank of hydrocarbon
73- What is Zone1? In Zone medium risk area Where flammable/explosive atmosphere is likely to occur in normal operation. E.g., burning flare, PRV and flange joints
74- What is Zone 2?
In Zone 2 low risk area where explosive atmosphere is unlikely to occur in normal operation. E.g., pipeline and open area
75- What is Non hazard Zone
Areas where flammable/explosive gases could not be found. E.g., accommodations and hospitals.
76- What are the requirements hot work in Zone 0?
The Area should be transfer to Zone 1 by isolating, then transfer to Zone 2 by remove all residue
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