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Norm
ÖNORM EN ISO 4628-7
Issue date: 2016 10 15
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 (ISO 4628-7:2016)
This part of ISO 4628 specifies a method suitable, in particular, for rating the degree of chalking on white or coloured exterior coatings and coating systems on rough su...
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Publisher:
Austrian Standards International
Format:
Digital | 12 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
This part of ISO 4628 specifies 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 the reference comparator G as described in ISO 8503-1).
The test method specified can 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 4628-6:2011 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 onsite evaluation.
ÖNORM EN ISO 4628-7
2016 10 15
Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of d...
Norm
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ÖNORM EN ISO 4628-7
2016 06 15
Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of d...
Norm
ÖNORM EN ISO 4628-7
2004 01 01
Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of d...
Norm
Norm
ISO 13076:2019
Issue date :
2019 10 15
Paints and varnishes — Lighting and procedure for visual assessments of coatings
Norm
ISO 4628-7:2016
Issue date :
2016 01 12
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