| 摘要 |
This mixture is characterised by the following mass composition: refrigerant R11: 15.9%, refrigerant R12: 16.5%, refrigerant R13: 20.6%, refrigerant R14: 30.0%, nitrogen: 17.0%, it being possible for the respective proportions to vary within limits of +/- 5% around the percentage values shown. Such a mixture allows evaporation temperatures of -147 to -150@C to be reached with a single compressor system without several circuits being used in cascade.
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