6.2.1 For the purpose of machinery and electrical
installations, hazardous areas are classified as in paragraphs 6.2.2
to 6.2.4. Hazardous areas not covered (such as, but not limited to,
well test equipment areas, helicopter fuel storage areas, acetylene
cylinder storage areas, battery rooms, paint lockers, flammable gas
or vapour vents and diverter line outlets) in this section should
be classified in accordance with section 6.1.