DIN EN ISO 14644-8:2022-10
Cleanrooms and associated controlled environments - Part 8: Assessment of air cleanliness by chemical concentration (ACC) (ISO 14644-8:2022); German version EN ISO 14644-8:2022
| Fecha edición: |
2022-10-01
En Vigor
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| Idiomas disponibles: | Inglés, Alemán |
| Resumen: | This document establishes typical assessment processes to determine grading levels of air chemical cleanliness (ACC) in cleanrooms and associated controlled environments, in terms of airborne concentrations of specific chemical substances (individual, group or category), and provides a protocol to include test methods, analysis and time-weighted factors for their determination. This document currently considers only concentrations of air chemical contaminants between 10^0 g/m3 and 10^-12 g/m3 under cleanroom operational conditions. This document is not relevant for application in those industries, processes or productions where the presence of airborne chemical substances is not considered a risk to the product or process. It is not the intention of this document to describe the nature of air chemical contaminants. This document does not give a classification of surface chemical contamination. |
| Keywords: | Air pollution|Air purification|Air purity|Air terminal devices|Air-conditioning systems|Atmospheric pollutants|Chemical substances|Classification|Classification systems|Clean rooms|Clean-room technology|Concentration|Concentration of particles|Conformity|Constructions|Contamination|Definitions|Design|Determination|Environment|Evaluations|Leak rate|Leaks|Low pressure|Measuring techniques|Molecular physics|Number of particles|Planning|Pressure overload|Pure air|Separating device|Specification|Standard climates|Substances|Surveillance (approval)|Test reports|Testing|Thermal comfort|Verification |
| ICS: | 13.040.35 - Salas limpias y ambientes controlados asociados |
| CTN: | |
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Equivalencia Internacional |
Idéntica EN ISO 14644-8:2022 Idéntica ISO 14644-8:2022 |
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Reemplazo Normas |
Reemplaza a DIN EN ISO 14644-8:2013-06 Reemplaza a DIN EN ISO 14644-8:2022-04 |
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