ISO 11126-3-2018 PDF

Full title and description

Preparation of steel substrates before application of paints and related products — Specifications for non‑metallic blast‑cleaning abrasives — Part 3: Copper refinery slag. This part of ISO 11126 specifies the required properties and designation for copper refinery slag supplied as a non‑metallic abrasive for blast‑cleaning operations used primarily in surface preparation of steel and related substrates.

Abstract

ISO 11126-3:2018 defines the physical and chemical requirements for copper refinery slag when supplied in the new (unused) condition for use as a blast‑cleaning abrasive. Key characteristics covered include particle size distribution, apparent density, Mohs hardness, moisture content, conductivity of aqueous extract (as an indicator of water‑soluble contaminants) and limits for water‑soluble chlorides. Test methods and sampling procedures referenced by this part are given in the companion ISO 11127 series of standards.

General information

• Status: Published (International Standard; confirmed on review).
• Publication date: 24 August 2018.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 25.220.10 (Surface preparation).
• Edition / version: Edition 2 (2018).
• Number of pages: 5 (core ISO document; national adoptions may include additional national foreword/annex pages).

Scope

Specifies requirements for copper refinery slag supplied as a non‑metallic abrasive for blast‑cleaning. The requirements apply only to abrasives in the new condition (not during or after use) and cover particle size ranges and limits, apparent density, hardness, moisture content, conductivity of aqueous extracts and limits on water‑soluble chlorides and other soluble contaminants. Although developed for preparation of steel substrates before painting, the specified properties are generally appropriate for preparing other materials by blast‑cleaning. Sampling and test methods are provided by the ISO 11127 test‑method series referenced in the standard.

Key topics and requirements

• Abrasive identification and designation format (e.g., “Abrasive ISO 11126 N/CU” with suffixes indicating form and particle size range).
• Particle size distribution: nominal size ranges with maximum permissible oversize/undersize fractions (limits for fines and maximum particle dimensions are specified).
• Apparent density: characteristic density requirements to ensure predictable performance in blasting operations.
• Hardness: minimum hardness level (commonly expressed as Mohs hardness, typically around 6 as a guideline) to ensure effective abrasive action.
• Moisture: low maximum moisture content specified to avoid performance loss and handling problems (determination by ISO 11127‑5 methods).
• Water‑soluble contaminants: limits expressed via conductivity of an aqueous extract and specific limits for water‑soluble chlorides (test methods in ISO 11127‑6 and ISO 11127‑7 respectively).
• Material characteristics: requirements on mineralogy (e.g., predominantly vitreous/iron‑silicate material) and limits on free crystalline silica to reduce health and coating‑compatibility risks.
• Sampling and testing: references to the ISO 11127 series for sampling, particle sizing, density, hardness, moisture and contaminant determinations.

Typical use and users

Used by coating specifiers, surface‑preparation engineers, blast‑cleaning contractors, abrasive suppliers, procurement and quality‑control personnel to specify, buy, test and verify copper refinery slag abrasives. The standard helps ensure consistent abrasive performance, predictable surface profile and reduced risk from soluble salts or other contaminants that could affect coating adhesion or long‑term corrosion performance.

Related standards

ISO 11126 is a multi‑part series specifying types and requirements for non‑metallic blast‑cleaning abrasives (other parts cover silica sand, coal furnace slag, nickel slag, iron/steel slags, fused aluminium oxide, olivine, staurolite, almandine garnet, etc.). The ISO 11127 series provides the corresponding sampling and test methods (parts for sampling, particle‑size distribution, apparent density, hardness tests, moisture, water‑soluble contaminants by conductivity and water‑soluble chlorides). National and regional adoptions exist (for example EN ISO and national bodies’ versions).

Keywords

ISO 11126-3, copper refinery slag, non‑metallic abrasive, blast‑cleaning, surface preparation, particle size distribution, apparent density, Mohs hardness, moisture content, water‑soluble chlorides, conductivity, ISO 11127.

FAQ

Q: What is this standard?

A: ISO 11126-3:2018 is the part of the ISO 11126 series that specifies requirements for copper refinery slag used as a non‑metallic blast‑cleaning abrasive for surface preparation, primarily of steel substrates.

Q: What does it cover?

A: It covers designation, particle size ranges and limits, apparent density, hardness, moisture, water‑soluble contaminants (including conductivity limits) and sampling/testing references for copper refinery slag supplied in the new condition; test methods are given in the ISO 11127 series.

Q: Who typically uses it?

A: Coating specifiers, blast‑cleaning contractors, abrasive manufacturers/suppliers, procurement and quality control staff who need to specify and verify abrasive materials for surface preparation before coating.

Q: Is it current or superseded?

A: ISO 11126-3:2018 is the current Edition 2 published in August 2018 and (per ISO records) was reviewed and confirmed in a subsequent review cycle, so the 2018 edition remains the active ISO publication.

Q: Is it part of a series?

A: Yes — it is one part of the ISO 11126 series (specifications for non‑metallic blast‑cleaning abrasives). It is used alongside the ISO 11127 series, which contains the test methods referenced by ISO 11126 parts.

Q: What are the key keywords?

A: Copper refinery slag, abrasive, blast‑cleaning, surface preparation, ISO 11126, particle size, apparent density, hardness, moisture, water‑soluble contaminants, conductivity, chlorides.