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本文论述了强制性国家标准GB 9237《制冷系统与热泵安全与环境要求》修订的背景与必要性,说明了该标准与对应的国际标准ISO 5149:2014的异同点和修改依据,对新一版标准中的疑难问题进行了阐述。新版GB 9237标准为可燃性制冷剂的安全使用提供技术支持,并将减少制冷系统或制冷剂对生命、财产和环境的危害风险。
This paper discusses the background and necessity of revising the compulsory national standard GB 9237, “Safety and Environmental Requirements of Refrigeration Systems and Heat Pumps”, explains the similarities, differences and differences between this standard and the corresponding international standard ISO 5149: 2014, Standard difficult problems are described. The new GB 9237 standard provides technical support for the safe use of flammable refrigerants and will reduce the risk to the life, property and environment of refrigeration systems or refrigerants.