DIN EN ISO 11125-6 1997-11 PDF

Full title and description

DIN EN ISO 11125-6:1997-11 — Preparation of steel substrates before application of paints and related products — Test methods for metallic blast‑cleaning abrasives — Part 6: Determination of foreign matter. This document is the German (DIN) adoption of the EN/ISO part that defines a laboratory test method to detect and quantify foreign particles and defective particles in metallic blast‑cleaning abrasives (shot, grit, wire), to support quality control and specification compliance.

Abstract

The standard specifies a test method for the detection and determination of foreign matter and defective particles in metallic blast‑cleaning abrasives. The method covers sampling of a consignment, sample preparation, the apparatus required, the analytical procedure (including separation and inspection techniques) and reporting of results. The test is intended to establish the level of contamination (for example oxides, slag or other foreign inclusion) and the presence of defective or damaged abrasive particles that could affect performance or surface preparation quality.

General information

• Status: Superseded / withdrawn (national adoption).
• Publication date: November 1997 (DIN adoption: 1997-11).
• Publisher: Deutsches Institut für Normung (DIN) — national adoption of EN/ISO text.
• ICS / categories: 25.220.10 (Preparation of steel substrates; surface treatment / blast‑cleaning abrasives).
• Edition / version: 1997 edition (adoption of ISO 11125‑6; originally based on ISO 11125‑6:1993).
• Number of pages: approx. 5 pages (national publication size may vary by publisher).

Scope

This part of EN/ISO 11125 establishes a standardised laboratory procedure to determine foreign matter and defective particles in metallic blast‑cleaning abrasives supplied for surface preparation of steel prior to coating. It applies to new (unused) metallic abrasives supplied for blast‑cleaning and covers representative sampling, sample preparation, separation/inspection techniques and requirements for test reporting. The information is intended for quality control, acceptance testing of supplies and for specification of abrasive materials.

Key topics and requirements

• Definition of foreign matter and defective particle categories to be assessed (e.g., non‑metallic inclusions, oxides, slag, cracked or hollow particles, misshapen grains).
• Sampling procedures to obtain representative test samples from consignments or storage containers.
• Apparatus and equipment needed for the test (sieves, magnets/magnetic separator, containers, balance, magnification/inspection tools).
• Sample preparation and conditioning steps to ensure reproducible separation and inspection.
• Separation and measurement technique (including magnetic separation where applicable) and visual/microscopic inspection criteria.
• Calculation and expression of results (percentages, counts per mass, acceptance limits as agreed between supplier and user).
• Required information for a complete test report (identification of sample, test method reference, test results, deviations, environmental/conditioning notes).

Typical use and users

Used by abrasive manufacturers and suppliers for product quality control, by coating specifiers and procurement teams to verify supplied abrasives, and by independent test laboratories and inspection bodies performing acceptance testing. Also used by contractors, shipbuilders, structural steel fabricators and coating system applicators to confirm abrasive suitability before blast‑cleaning operations.

Related standards

This part belongs to the ISO 11125 series of test methods for metallic blast‑cleaning abrasives and is closely associated with the ISO 11124 series (specifications for different metallic abrasives). Related documents typically referenced alongside this part include other ISO 11125 test method parts (sampling and physical tests), the ISO 11124 specification parts for shot, grit and cut wire, and surface preparation standards such as ISO 8504 and ISO 8501 for blast‑cleaning practice and substrate cleanliness.

Keywords

blast‑cleaning, metallic abrasives, shot, grit, cut steel wire, foreign matter, contamination, magnetic separation, sampling, test method, quality control, surface preparation

FAQ

Q: What is this standard?

A: DIN EN ISO 11125‑6:1997‑11 is the German (DIN) adoption of the EN/ISO test method that defines how to detect and measure foreign matter and defective particles in metallic blast‑cleaning abrasives used for preparing steel before coating.

Q: What does it cover?

A: It covers representative sampling, sample preparation, required apparatus, the separation/inspection procedure (including magnetic separation where applicable), result calculation and test reporting for foreign or defective particles in metallic abrasives.

Q: Who typically uses it?

A: Abrasive manufacturers and suppliers, independent test laboratories, coating specifiers, inspectors, contractors and steel fabricators use the standard to control and verify abrasive quality and suitability for blast‑cleaning operations.

Q: Is it current or superseded?

A: The 1997 DIN adoption is superseded. The ISO/EN series has a later edition (ISO 11125‑6:2018 / DIN EN ISO 11125‑6:2018) that replaces the earlier text; national catalogs recorded withdrawals/supersessions of the 1997 adoption around late 2018 to early 2019. Users should refer to the 2018 edition or the current national implementation for the up‑to‑date text.

Q: Is it part of a series?

A: Yes — it is part of the ISO 11125 series (test methods for metallic blast‑cleaning abrasives) and links to the ISO 11124 series (specifications for metallic abrasives). Other parts in the series cover sampling, density, particle size, structural defects and related test methods.

Q: What are the key keywords?

A: Key keywords include: blast‑cleaning, metallic abrasive, foreign matter, contamination, shot, grit, cut wire, magnetic separation, sampling, test method, surface preparation.