, it is currently active and set for its next review cycle ending in February 2026 Updated ISO 8502-3 Dust Rating Chart The standard provides pictorial ratings for and descriptive classes for Quantity Rating Description of Dust Level Typical Action No particles visible under 10x magnification Very slight; particles visible under 10x but not naked eye Slight; particles just visible with normal vision Pass (Typical spec) Moderate; particles clearly visible (~0.5mm) Often Fail / Re-clean Heavy; particles between 0.5mm and 2.5mm Fail / Re-clean Very Heavy; particles larger than 2.5mm Fail / Re-clean Rösler Blog Key Procedure Steps
ISO 8502-3:2017 was confirmed on June 30, 2022 (designated ISO 8502-3:2017 R2022), confirming its continued relevance and validity. The standard comprises 8 pages and supersedes the earlier 1992 edition. No revision has been published beyond the 2017 edition as of 2026, though the standard remains under the purview of ISO/TC 35/SC 12 (Surface cleanliness). iso 85023 dust level chart pdf updated
Examine the tape under ×10 magnification and reference Table 1 to determine the prominent dust particle size class (0–5). If normal or corrected vision is specified, the naked eye is used; otherwise, magnification is applied. , it is currently active and set for
ISO 8502-3 Dust Level Chart PDF: The Complete Updated Guide The updated governs the qualitative assessment of dust levels on blast-cleaned steel surfaces before painting . In industrial coating applications, microscopic dust particles are a primary cause of premature coating failure, poor paint adhesion, and accelerated under-film corrosion. Managing surface cleanliness through an official ISO 8502-3 dust level chart ensures compliance with stringent contract specifications. Examine the tape under ×10 magnification and reference