A: The board is usually part of a dust tape test kit, available through manufacturers like Elcometer or Industrial Physics.
: Particles ranging from 0.5 mm to 1.0 mm in diameter.
Dust particles are not visible under 10x magnification. iso 85023 dust level chart pdf updated
The industry standard for assessing this contamination is ("Preparation of steel substrates before application of paints and related products - Tests for the assessment of surface cleanliness - Part 3: Assessment of dust on steel surfaces prepared for painting (pressure-sensitive tape method)"). This guide provides a detailed breakdown of the standard, how to use the ISO 8502-3 dust level chart , and where to find the updated PDF resources for 2026. What is the ISO 8502-3 Standard?
ISO 8502-3 describes a method for assessing the quantity and size of dust particles on blast-cleaned steel surfaces. The procedure uses a specific type of pressure-sensitive adhesive tape to lift dust from the surface. This tape is then applied to a white or black display board to be evaluated visually against a comparator chart. The ISO 8502-3 Dust Level Chart (Pictorial Rating) A: The board is usually part of a
When she peels back the tape and places it on a contrast-colored assessment plate, Sarah compares her sample against the defined in the updated ISO 8502-3:2017 standard. INTERNATIONAL STANDARD ISO 8502-3
It is primarily suited for assessing rust grades A, B, and C as defined in ISO 8501-1. The ISO 8502-3 Dust Level Chart (Updated Guide) The industry standard for assessing this contamination is
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
: Large particles ranging from 1.0 mm to 2.5 mm in diameter.
For compliance in 2026, it is vital to use the updated pictorial standards. While the standards themselves are proprietary, several sources offer compliant charts or interpretation guides.
The standard remains the current global benchmark for assessing dust on steel surfaces before painting. While it was last confirmed in 2022, the methodology and pictorial references established in the 2017 update continue to serve as the industry standard for quality control in 2024 and beyond.