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Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Measurement of and acceptance criteria for the dry-film thickness |
Coatings on blastcleaned steel, measured with F-type gaube calibrated on smooth steel, readings reduced by an offset value dependant on roughness acc to ISO 8503-1 comparator: fine 10um, medium 25 um, coarse 40 um.
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prEN ISO 8289 |
Vitreous and porcelain enamels - Low voltage test for detecting and locating defects |
A: Sponge moistened with sodium nitrite, water and dishwashing detergent, 9V dc, alarm below 90kO. B: 24V dc for 2 min, wet paperwith phenolphthalein added to solution, will show red colour at pinhole. |
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