Pharaoh definition, meaning, English dictionary, synonym, see also 'Pharaoh ant',Pharaoh's ant',Pharaoh ant',Pharos', Reverso dictionary, English definition, English vocabulary Translation Context
The intake to this ventilation. system must be near the floor. (Chlorine as a gas is. 2.5 times heavier than air.) Exhaust Rate The exhaust system must be able to exchange the air. in the room every three to four minutes.
Chlorine is a naturally-occurring element that can be either a gas or a liquid. As a gas, chlorine has a yellow-green color and a strong, irritating odor similar to bleach. Chlorine can be converted to a liquid at very cold temperatures for shipping.