TECHNICAL STANDARD
ISO 11124-2
Preparation of steel substrates before application of paints and related products — Specifications for metallic blast-cleaning abrasives — Part 2: Chilled-iron grit
ISO
Edition 2 / 2018
Current
WHAT DOES THIS STANDARD COVER?
Specifies requirements for chilled-iron grit supplied as a metallic abrasive for blast-cleaning.
WHY IS IT RELEVANT?
Relevant where chilled-iron grit is specified for abrasive blast-cleaning and abrasive characteristics form part of inspection or quality-control requirements. Requirements relate to abrasive supplied in the new condition and should not be represented as requirements for abrasive during or after use.
KEY INSPECTION CONSIDERATIONS
The standard addresses requirements for chilled-iron grit supplied as a new metallic blast-cleaning abrasive. Abrasive characteristics can influence blasting behaviour and the resulting prepared surface and surface profile. Inspection should consider the specified abrasive grade and available documentation together with the actual surface produced.
WHAT THE STANDARD SHOULD NOT BE USED TO ASSUME
Compliance of the abrasive with its material specification does not itself demonstrate that the prepared steel has achieved the required visual cleanliness or surface profile. Requirements for new abrasive should not automatically be applied to used or recycled abrasive without considering the applicable requirements for its condition and reuse. Abrasive suitability and prepared-surface acceptance remain separate considerations.
PRACTICAL INSPECTION APPLICATION
Inspectors can review abrasive type, grade and supporting documentation where specified and then separately inspect the resulting steel surface for the required visual condition, surface profile and other project requirements. Where abrasive is recovered or recycled, the applicable requirements for its continuing condition should be considered separately.
RELATED TECHNICAL STANDARDS
RELATED TECHNICAL TOPICS
Abrasives; Blast cleaning; Surface preparation
RELATED PIL GUIDANCE
Practical guidance on assessing abrasive blast-cleaned steel surface profile before protective coating application.
Laser cleaning can remove coatings and corrosion, but the resulting surface must still be inspected and verified against the proposed coating system and project requirements.
RELATED EXPERTISE
Coating Inspection; Testing & Analysis; Technical Consultancy
ABOUT THIS TECHNICAL SUMMARY
Paint Inspection Ltd provides this information to help inspectors, engineers, asset owners and contractors understand the practical relevance of commonly referenced protective coatings standards. This page is PIL technical guidance and does not reproduce or replace the published standard. Users should refer to the current published standard, project specification, coating manufacturer requirements and other applicable contract documents when establishing project requirements or acceptance criteria.
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OFFICIAL STANDARD
PIL technical summaries are intended to explain the inspection relevance of industry standards and do not replace the published document.
STATUS AND SOURCE VERIFICATION
Edition 2 remains current and was confirmed by ISO in 2024.