Iso 85023 Dust Level Chart Pdf Updated Jun 2026

This article provides a comprehensive overview of the ISO 8502-3 dust level chart, the criteria it defines, the testing procedure, and guidance on accessing the most current version of the standard in PDF format.

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ISO 8502-3:2017 DUST LEVEL CHART ------------------------------------------------- CLASS 1 – PASS - Particles visible only under magnification (≤10x) - No particles to naked eye - Tape coverage: <1% - Max particle size: <50 µm

A: The official ISO chart is copyrighted. However, many training providers offer free summary reference cards. Do not use unofficial PDFs for contractual disputes. iso 85023 dust level chart pdf updated

Immediately stick the tape onto the assessment plate (contrast card).

Using outdated or unofficial reference materials can result in non-compliance flags during third-party asset integrity audits.

ISO 8502-3:2017 describes a qualitative test method for assessing dust remaining on cleaned steel surfaces prepared for painting. The method is applicable to steel surfaces that, before cleaning, corresponded to rust grades A, B, or C as defined in ISO 8501-1. The standard can be used either as a "pass/fail" test by comparison with specific limits or to provide a permanent record of the dust present on a surface by mounting the used tapes on tiles, cards, or paper. This article provides a comprehensive overview of the

If left unmanaged, this dust acts as a barrier, preventing the liquid paint from properly wetting and anchoring to the steel substrate. Key Sections of the Updated Dust Level Chart

A compliant ISO 8502-3 report should include:

Tape is completely clear; no dust particles visible under 10x magnification. Excellent (Required for ultra-critical linings) Very few particles; minimal dust scattered across the tape. Highly Acceptable (Standard for immersion/offshore) Rating 2 Do not use unofficial PDFs for contractual disputes

High density; particles cover a significant portion of the tape.

: Pull a fresh, unblemished strip of tape roughly long. Handle it strictly by the ends.