The contaminated tape is then affixed to a white background (or directly compared to the reference plate) and examined. Using the pictorial chart, you assign a rating for the quantity of dust.
Clear tape; no visible dust particles under 10x magnification. iso 85023 dust level chart pdf updated
ISO 8502-3 is an international standard titled "Preparation of steel substrates before application of paints and related products — Tests for the assessment of surface cleanliness — Part 3: Assessment of dust on steel surfaces prepared for painting (pressure-sensitive tape method)" . The contaminated tape is then affixed to a
What is the specified for your project? What type of coating/primer are you applying? What abrasive media was used for blasting? ISO 8502-3 is an international standard titled "Preparation
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A piece of pressure-sensitive tape is applied to the prepared steel surface. Pressure is applied to ensure the tape makes full contact with the dust particles, which are then lifted off when the tape is removed.