Norm

NEN-EN-ISO 4628-7:2003 en

Verven en vernissen - Beoordeling van de kwaliteitsafbraak van verflagen - Aanduiding van de intensiteit, hoeveelheid en omvang van algemeen voorkomende gebreken - Deel 7: Beoordeling van de mate van krijtlaagvorming door viltmethode

  • Deze norm is ingetrokken sinds 18-02-2016

31,57

Over deze norm

Status Ingetrokken
Aantal pagina's 3
Commissie Verfwaren
Gepubliceerd op 01-09-2003
Taal Engels
This part of ISO 4628 describes a method suitable, in particular, for rating the degree of chalking on white or coloured exterior coatings and coating systems on rough surfaces (i.e. those having a roughness greater than segment 4 of reference comparator G as described in ISO 8503-1). The test method specified may also be used for the assessment of the degree of chalking of coatings and coating systems on smooth surfaces, but the method specified in ISO 4628-6 is preferable for this purpose. The test method is applicable to coatings and coating systems on mineral substrates, e.g. fibre cement, brick, concrete and renderings, independent of the structure of the surface. The method can be used quite effectively by experienced operators and is recommended for laboratory use as well as for on-site evaluation.

Details

ICS-code 87.040
Nederlandse titel Verven en vernissen - Beoordeling van de kwaliteitsafbraak van verflagen - Aanduiding van de intensiteit, hoeveelheid en omvang van algemeen voorkomende gebreken - Deel 7: Beoordeling van de mate van krijtlaagvorming door viltmethode
Engelse titel Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 7: Assessment of degree of chalking by velvet method
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