NEN-ISO 6504-3
Paints and varnishes - Determination of hiding power - Part 3: Determination of contrast ratio (opacity) of light-coloured paints at a fixed spreading rate
| Organization: | NEN |
| Publication Date: | 1 September 1998 |
| Status: | inactive |
| Page Count: | 14 |
| ICS Code (Paints and varnishes): | 87.040 |
scope:
Is dealing with the sampling and testing of paints, varnishes and related products. It specifies methods for determining the opacity (by contrast ratio measurement) given by paint films of white or light colours of tristimulus value Y greater than 25, applied at a spreading rate of 20 m²/l to an agreed black and white chart or to colourless transparent polyester foil, in the latter case the tristimulus value Y being measured subsequently over agreed black and white glass panels.
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