7. Comments and analysis
7.1 Comments
Standards are mainly of interest to :
manufacturers ;
approved laboratories (LNE, CEBTP, CSTB), inspection bodies (Bureau Véritas, Socotec etc.).
Standards are documents relating to products and/or processes which generally provide: definitions and vocabulary; test methods; characteristics; performance; as well as technical and special specifications and user guides.
Standards enable manufacturers to formulate their products, and laboratories to check and certify that products comply with standards.
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The DTU (Documents techniques unifiés - unified technical documents) cover :
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Air characteristics – Fundamentals
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Also in our database
Standards and norms
New standards
- - NF EN ISO 7783-1 - 09.1999
- Détermination du coefficient de transmission de la vapeur d'eau. - NF EN ISO 7783-2 - 07.1999
The first describes the free-foil capsule method. The second determines and classifies water vapour transmission rate (permeability).
They now have the status of French standards and are part of the NF EN 1062-1 to 1062-11...
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