Iso 85023 Dust Level Chart Pdf Updated Today

Many coating specifications mandate a Class 2 or lower rating, making this test critical for inspection reports.

| | Required Dust Class | Largest Particle Allowed | | --- | --- | --- | | Offshore Wind / Oil & Gas | Class 1 | < 50 µm | | Marine (Ballast Tanks) | Class 1 (or 2 max) | < 50 µm | | Bridges & Highways (C4) | Class 2 | < 100 µm | | Water Tanks (Potable) | Class 1 | < 50 µm | | General Structural Steel (C2/C3) | Class 2 | < 100 µm |

: This is a pictorial rating representing the density of dust particles on the tape. Rating 0 : Surface is free of dust.

For offshore, immersed, or chemically aggressive environments, Dust Class ≤ 2 is mandatory. For high-durability coatings (e.g., C5-M, CX), Dust Class 1 is required. iso 85023 dust level chart pdf updated

Particles visible only under 10x magnification (less than 50 µm).

To quantify three things:

Use clean, washed, and properly screened abrasives. Low-quality recyclables often break down into excessive fine dust. Many coating specifications mandate a Class 2 or

A specialized adhesive tape is applied to the surface, pressed down, and then removed to collect dust particles.

The standard prescribes a simple, low-cost, yet highly effective field test using clear pressure-sensitive adhesive tape. Required Equipment

Low density; small, distinct groups of particles are visible. To quantify three things: Use clean, washed, and

- Includes official comparator charts. Importance of Dust Levels in Coating Application

High dust level; dense cluster of particles covering a significant portion of the tape.

This article provides the breakdown of the ISO 85023 dust level chart PDF , including how to download the latest version, interpret the classes (1, 2, 3), and apply it correctly on-site.

Surfaces corresponding to rust grades A, B, or C as defined in ISO 8501-1. 2. Understanding the ISO 8502-3 Dust Level Chart

Small amount of dust; particles are easily visible but widely scattered.