This standard shall not apply to the following: (1) Nonflammable mixtures of ethylene oxide with other chemicals (2) Ethylene oxide manufacturing facilities, and container filling, refilling, or transfilling facilities (3) The off-site transportation of portable containers of ethylene oxide (4) Facilities using ethylene oxide as a chemical feedstock (5) Ethylene oxide in chambers 0.283 m3 (10 ft3) or less in volume, or for containers holding 200 g (7.05 oz) of ethylene oxide or less.