Iso 85023 Dust Level Chart Pdf Updated -
ISO 8502-3 standard is a critical benchmark in industrial coating, specifically designed to assess residual dust on cleaned steel surfaces before painting. Even after rigorous abrasive blasting, microscopic dust particles can remain, acting as a barrier that prevents proper paint adhesion and traps moisture, which leads to premature corrosion, peeling, and flaking. The Mechanics of the "Tape Test"
Acceptance criteria mapping table
- Map dust levels to typical coating system categories (zinc primers, epoxy, urethane) with suggested max dust level tolerated.
Common Mistakes When Using the ISO 85023 PDF Chart
Even with the updated PDF, inspectors often make errors. Avoid these: iso 85023 dust level chart pdf updated
If you need a free quick-reference PDF for field use, many NACE (now AMPP) and SSPC guides offer condensed versions. Search for: "ISO 8502-3:2017 free reference card" or check your coating manufacturer’s technical data sheet (TDS) appendix. ISO 8502-3 standard is a critical benchmark in
: Press a 200 mm length of tape onto the prepared steel. Apply firm, consistent pressure (typically with a thumb or a calibrated spring-loaded roller Removal & Mounting : Peel the tape and place it on a contrasting display board or assessment plate. Comparison Map dust levels to typical coating system categories
- The new standard introduces a more detailed classification system, with additional categories for dust levels.
- The updated standard provides more precise guidance on assessing dust levels using a tape test.
- The new standard includes a detailed methodology for evaluating dust levels using a microscope.
Rating 5: Tape exhibits overall discoloration (reddish-brown/black), often caused by microscopic dust from specific abrasives. Standard Inspection Procedure
What is ISO 8502-3?
ISO 8502-3 is the 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 test)."
