Iso 85023 Dust Level Chart Pdf Updated Jun 2026

Press the tape onto the prepared steel surface, ensuring good contact. Remove Tape: Remove the tape gently.

The heart of the standard is a reference chart that provides both pictorial references and descriptive classes for two key parameters: the (density) of dust and the size of the dust particles. This dual assessment is crucial, as both factors independently affect coating performance.

The following outlines the complete procedure for conducting an ISO 8502-3 dust assessment:

: A classification from 0 to 5 based on the diameter of the largest particles. Rösler Group Updated Standard Features (ISO 8502-3:2017) iso 85023 dust level chart pdf updated

For over two decades, the global standard for assessing this dust has been .

The standard is a critical framework used in industrial coating to evaluate dust contamination on blast-cleaned steel surfaces. As of April 2026, the 2017 second edition remains the most current and widely referenced version, having technically revised and replaced the original 1992 standard. Core Assessment Mechanism

The uses a 0 to 5 scale to rate the volume of dust covering a specified sample area. Industry specifications usually establish a maximum acceptable rating (typically Rating 1 or 2 for high-performance marine or industrial coatings). Dust Quantity Rating Description / Visual Guide Acceptance Level Rating 0 Press the tape onto the prepared steel surface,

One-page summary of purpose, scope, and key changes in the updated dust level chart and measurement procedure.

CLASS 3 – FAIL

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. This dual assessment is crucial, as both factors

She hung up and saved the new PDF to her offline folder: ISO_85023_Dust_Chart_2025_OFFICIAL.pdf .

The procedure for using the chart is standardized to ensure reliable results:

Download your official ISO 8502-3 dust level chart PDF updated today, and pair it with a calibrated 10x reticle magnifier for true field accuracy.

If a tape sample exhibits an overall reddish-brown or black discoloration, the rule requires inspectors to record a Quantity Rating 5 and Size Class 1 . This indicates a massive concentration of microscopic abrasive breakdown dust that can severely interfere with coating adhesion. Standard Step-by-Step Testing Procedure

Because ISO standards are copyrighted intellectual property, the official, fully updated ISO 8502-3 document and its visual comparison charts must be acquired through authorized channels: