These amendments have been consolidated into IBC Code, Chapter
1
1 New paragraphs 1.3.37 and 1.3.38 are added as
follows:
-
"1.3.37
Purging means the introduction
of inert gas into a tank which is already in an inert condition with
the object of further reducing the oxygen content; and/or reducing
the existing hydrocarbon or other flammable vapours content to a level
below which combustion cannot be supported if air is subsequently
introduced into the tank.
-
1.3.38
Gas-freeing means the process
where a portable or fixed ventilation system is used to introduce
fresh air into a tank in order to reduce the concentration of hazardous
gases or vapours to a level safe for tank entry."