1.[]2.[]3.[] ()Hazard communication () CNS6864 Z5071 2003720081231 CNS15030 Z1501 ()EthanolCAS.NO 64-17-5UN.NO 1170 ABC A( )B CO2C CO2D()Novec1230 1. 2. 3. 4. 1.2. 3. B ABC 1.2. ()