DIN EN ISO 21922/A1:2023-10
Refrigerating systems and heat pumps - Valves - Requirements, testing and marking - Amendment 1 (ISO 21922:2021/DAM 1:2023); German and English version EN ISO 21922:2021/prA1:2023 / Note: Date of issue 2023-08-25
| Fecha de anulación: |
2025-09-01
Anulada
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|---|---|
| Idiomas disponibles: | Alemán, Inglés |
| Keywords: | Compression stresses|Compressive strength|Design|Heat pumps|Marking|Materials|Pressure releases|Pressure resistance|Refrigerating plants|Safety engineering|Safety requirements|Specification (approval)|Test pressure|Testing|Tightness|Valves |
| ICS: | 27.080 - Bombas de calor, 27.200 - Tecnología frigorífica |
| CTN: | |
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Reemplazo Normas |
Es reemplazada por DIN EN ISO 21922:2025-09 |










