Iso 85023 Dust Level Chart Pdf Updated [ LIMITED ]

The Essential Guide to the Updated ISO 8502-3 Dust Level Chart: Download Your PDF & Master Surface Cleanliness

Appendix – Quick Reference Card (Printable)

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.

How to Integrate the Updated Chart into Your Quality Control Workflow

Reading the ISO 85023 Dust Level Chart Correctly

• Class 1: No visible dust particles under 10x magnification. (Ideal for high-performance coatings like immersion service or linings for potable water).
• Class 2: A very few, scattered dust particles. (Acceptable for most industrial environments like atmospheric exposure).
• Class 3: A noticeable distribution of dust particles but not forming a complete layer. (Marginal – requires client approval).
• Class 4: Numerous dust particles covering a significant portion of the tape. (Reject – clean surface required).
• Class 5: Heavy dust layer covering almost all of the tape. (Unacceptable – re-blasting mandatory).

| Dust Level | Description | Visual Comparison | | --- | --- | --- | | A | No dust | No visible dust | | B | Light dust | A few small dust particles | | C | Medium dust | Some dust particles, but no continuous coverage | | D | Heavy dust | Continuous coverage of dust particles | iso 85023 dust level chart pdf updated