This Part of ABNT NBR 17505 shall apply to areas where class I liquids are stored or handled and to areas where class II or class III liquids are stored or handled at or above their flash point.
ABNT NBR 17505-6-2013 history
2013ABNT NBR 17505-6-2013 Storage of flammable and combustible liquids Part 6: Electrical requirement for installations and electrical equipment