| http://www.w3.org/ns/prov#value | - The propellant(s) may be chosen from dimethyl ether, C3-5 alkanes, such as propane, n-butane and isobutane; 1,1-difluoroethane, mixtures of dimethyl ether and of C3-5 alkanes, and mixtures of 1,1-difluoroethane and of dimethyl ether and/or of C3-5 alkanes.
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