DIN EN ISO 5149-4:2025-11 Refrigerating systems and heat pumps - Safety and environmental requirements - Part 4: Operation, maintenance, repair and recovery (ISO 5149-4:2022); German version EN ISO 5149-4:2025

标准编号：DIN EN ISO 5149-4:2025-11

英文标题：Refrigerating systems and heat pumps - Safety and environmental requirements - Part 4: Operation, maintenance, repair and recovery (ISO 5149-4:2022); German version EN ISO 5149-4:2025

德文标题：Kälteanlagen und Wärmepumpen - Sicherheitstechnische und umweltrelevante Anforderungen - Teil 4: Betrieb, Instandhaltung, Instandsetzung und Rückgewinnung (ISO 5149-4:2022); Deutsche Fassung EN ISO 5149-4:2025

发布日期：2025-11

DIN EN ISO 5149-4:2025-11 Refrigerating systems and heat pumps - Safety and environmental requirements - Part 4: Operation, maintenance, repair and recovery (ISO 5149-4:2022); German version EN ISO 5149-4:2025

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