Iso 85023 Dust Level Chart Pdf Updated -

ISO 8502-3 standard provides a standardized method for assessing the quantity and size of dust on steel surfaces prepared for painting using the pressure-sensitive tape method. ISO - International Organization for Standardization Current Standard Status The most current version of this standard is ISO 8502-3:2017 . While initially published in 2017, it was formally reviewed and confirmed in 2022

Particles are classified by their diameter using a 10x magnifier: Description Typical Diameter No particles visible Visible under 10x magnification (not visible to naked eye) Just visible with normal vision Clearly visible with normal vision Clearly visible Clearly visible Assessment Procedure Preparation iso 85023 dust level chart pdf updated

  1. Improved coating quality: By ensuring that steel surfaces are properly cleaned and prepared, the updated standard helps to improve the quality of coating applications.
  2. Increased efficiency: The revised standard provides a more streamlined and efficient approach to assessing dust levels, reducing the time and cost associated with coating preparation.
  3. Enhanced safety: By minimizing the risk of coating failures, the updated standard helps to ensure the safety of people and the environment.

Key Insight from the updated chart:

A "Class 3" dust level with fine particles (<100 µm) might be acceptable for a pipe coating in a dry climate, but the same Class 3 with coarse particles (300 µm) is an automatic failure for any high-performance coating. ISO 8502-3 standard provides a standardized method for

Recommendation for Contractors:

While PDF charts are useful for training, always use an ISO 8502-3 certified Comparator Card (often included with Testex tape or Elcometer kits) for final inspection to avoid disputes over adhesion failures. Improved coating quality : By ensuring that steel

Conclusion

- Surface identification: [tank, pipe, beam] - Cleaning method: [garnet, slag, steel grit] - Dust assessment date & time: - Ambient conditions (humidity, temp): - Tape brand & batch number: - Sample locations (grid or sketch): - Dust class per ISO 8502-3:2017: _____ - Largest particle size observed: _____ µm - Inspector name & signature: