Iso 85023 Dust Level Chart Pdf Updated !exclusive!
The quantity rating evaluates the density of the dust particles trapped on the tape. The standard utilizes a visual comparative chart ranging from 0 to 5:
Pass a standardized roller or your thumb firmly over the tape three times to ensure maximum contact with any loose dust particles.
As coating technologies evolve, the tolerance for contamination remains low. Using the ISO 8502-3 standard ensures that: iso 85023 dust level chart pdf updated
The standard provides a qualitative and quantitative framework: It classifies the size of the dust particles.
Residual dust on blast-cleaned steel acts as a "bond-breaker" between the substrate and the protective coating. Even a thin layer of microscopic particles can reduce adhesive strength, leading to premature delamination or blistering. Furthermore, dust is often hygroscopic; it can trap moisture against the steel, accelerating corrosion under the paint film, often before the asset even enters service. ISO - International Organization for Standardization INTERNATIONAL STANDARD ISO 8502-3 The quantity rating evaluates the density of the
These suppliers sometimes include the chart as a PDF in their product documentation.
The most current version of the standard is ISO 8502-3:2017 , which was last reviewed and confirmed in 2022 and remains the active version for 2026. It defines a qualitative "pressure-sensitive tape method" to assess dust quantity and size on blast-cleaned steel. ISO 8502-3 Dust Level Assessment Using the ISO 8502-3 standard ensures that: The
Compare the tape to the ISO 8502-3 visual chart under good lighting conditions. Record both the Quantity Rating and the Size Class (e.g., "Dust Level: Rating 2, Class 3"). Why You Need the Updated ISO 8502-3 PDF Chart
Advanced inspection kits now utilize digital optical scanners. The inspector takes the tape sample, places it into a portable scanning device, and the software automatically calculates the percentage of dust coverage, matching it perfectly to the ISO 8502-3 rating scale.
The International Organization for Standardization addresses this specific threat through .
A: It is designed primarily for blast-cleaned steel (corresponding to rust grades A, B, or C).