ISO 3543:2000
$27.95
Revêtements métalliques et non métalliques — Mesurage de l’épaisseur — Méthode par rétrodiffusion des rayons bêta
| Published By | Publication Date | Number of Pages |
| ISO | 2000-12 | 20 |
AVERTISSEMENT Les instruments à rétrodiffusion des rayons bêta, utilisés pour le mesurage de l'épaisseur des revêtements, utilisent un certain nombre de sources radioactives différentes. Bien que les activités de ces sources soient généralement très faibles, elles peuvent présenter un danger pour la santé si elles ne sont pas manipulées correctement. En conséquence, tous les règlements et directives de sécurité prescrits par les autorités locales ou nationales doivent être respectés. La présente Norme internationale spécifie une méthode de mesurage non destructif de l'épaisseur des revêtements, basée sur le principe de la rétrodiffusion des rayons bêta. Elle est applicable aux revêtements métalliques ou non métalliques, que les substrats soient ou non métalliques. Pour que la présente méthode soit applicable, il faut que les numéros atomiques ou les numéros atomiques équivalents du revêtement et du substrat diffèrent d'une quantité convenable.
NOTE La méthode par rétrodiffusion des rayons bêta est de moins en moins utilisée depuis la mise en oeuvre de la méthode par fluorescence X (ISO 3497). Son faible coût en fait néanmoins une méthode très utile pour de nombreuses applications. En outre, sa plage de mesures est plus large.
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