NF EN ISO 9117-4
Paints and varnishes - Drying tests - Part 4 : test using a mechanical recorder
ISO 9117-4:2012 specifies a test for determining the times taken to reach various stages of drying of organic coatings, using a mechanical straight-line or circular drying-time recorder. The use of a mechanical recorder is valuable in comparing the drying behaviour of coatings of the same generic type, when one coating might form a gel at a faster rate than another or might resist scratching better than another. The test is intended to simulate the conditions which exist when painted articles are stacked upon each other.
ISO 9117-4:2012 specifies a test for determining the times taken to reach various stages of drying of organic coatings, using a mechanical straight-line or circular drying-time recorder. The use of a mechanical recorder is valuable in comparing the drying behaviour of coatings of the same generic type, when one coating might form a gel at a faster rate than another or might resist scratching better than another. The test is intended to simulate the conditions which exist when painted articles are stacked upon each other.
- Avant-proposiv
- Introductionv
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1 Domaine d'application1
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2 Références normatives1
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3 Principe1
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3.1 Enregistreur rectiligne1
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3.2 Enregistreur circulaire1
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4 Échantillonnage1
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5 Panneaux d'essai2
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5.1 Subjectile2
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5.2 Revêtement des panneaux d'essai2
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6 Conditions d'essai et nombre d'essais2
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7 Méthode A - Utilisation d'un enregistreur de temps de séchage rectiligne2
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7.1 Appareillage2
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7.2 Mode opératoire2
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8 Méthode B - Utilisation d'un enregistreur de temps de séchage circulaire3
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8.1 Appareillage3
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8.2 Mode opératoire3
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9 Classification des stades de séchage4
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10 Fidélité5
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11 Rapport d'essai5
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