EN ISO 11127-8:2024 PDF

Preparation of steel substrates before application of paints and related products - Test methods for non-metallic blast-cleaning abrasives - Part 8: Field determination of water-soluble chlorides (ISO 11127-8:2020)

Title (English):

EN ISO 11127-8:2024

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 13
Publication date:: December 11, 2024
Edition:: CEN EN 11127 edition 1 version 1
ICS:: 25.220.10

Document language:

enru

Delivery time:1–7 days

Price:60 €

Description (English):

This document specifies a field method for the determination of water-soluble chlorides in non-metallic blast-cleaning abrasives. This field method is provided as a kit with all components and premeasured extraction solution. This document differs from ISO 11127-7 in that equal volumes of the sample of abrasive and extraction solution are used for the determination of chloride level in the abrasive. In comparison, ISO 11127-7 uses a weight to volume ratio of abrasive to solvent (deionized water) to extract soluble salts from the abrasive. It is intended for use in the field as compared to ISO 11127-7, which is well suited for use in the laboratory.

Technical details

Technical committee: CEN/TC 139 - Paints and varnishes
SKU: EN ISO 11127-8:2024

Abstract

Overview

EN ISO 11127-8:2024 - Field determination of water‑soluble chlorides in non‑metallic blast‑cleaning abrasives - specifies a rapid, on‑site test method supplied as a kit to detect chloride contamination in abrasive media used for steel surface preparation. The standard is part of the ISO 11127 series and is intended for field use where immediate chloride screening is required to avoid transferring corrosive salts to steel substrates prior to coating.

Key topics and requirements

Scope: Field method for determining water‑soluble chlorides in non‑metallic abrasives using a prepackaged kit.
Sampling: Samples shall be representative and taken in accordance with ISO 11127‑1.
Reagent: A premeasured, biodegradable acidic extraction solution (pH 3.6 ± 0.2) is provided in the kit; typical weak acids include glycolic, acetic or citric acid.
Apparatus: Small sample container, larger testing container with premeasured extractant, glass chloride ion detection tube (per ISO 8502‑5), and a snapper to break tubes.
Procedure (field):
- Fill the small container with a representative abrasive sample.
- Pour sample into the larger container containing the premeasured extraction solution; cap and shake ~2 minutes.
- Allow settling (~5 min) or filter an aliquot, then insert the ion detection tube into the clear solution.
- Read chloride level from the tube graduation at the color change; result expressed in mg/kg.
Differences to laboratory method: Unlike ISO 11127‑7 (lab method using a weight:volume extraction with deionized water), EN ISO 11127‑8 uses equal volumes of sample and acidic extractant; results are not directly comparable between the two methods.
Confirmation: Disputed field results should be referred to ISO 11127‑7 laboratory testing, since ISO 11126 series limits are based on ISO 11127‑7 parameters.
Reporting: Test reports must identify the product, reference this standard, give results, note deviations, unusual observations, date and tester name.

Applications and users

Practical uses include:

Pre‑blast and pre‑coating quality checks to prevent chloride‑induced coating failure.
On‑site QA/QC screening by abrasive suppliers, blast contractors, coating specifiers, corrosion engineers and inspectors.
Rapid decision support for accepting or conditioning abrasive batches before blasting operations.

Keywords: EN ISO 11127-8:2024, field determination, water‑soluble chlorides, non‑metallic blast‑cleaning abrasives, chloride testing, surface preparation, ion detection tube, field kit.

Related standards

ISO 11127‑1 (sampling)
ISO 11127‑7 (laboratory chloride determination)
ISO 11126 (requirements for non‑metallic abrasives)
ISO 8502‑5 (ion detection tube method for chlorides on steel surfaces)

Related standards

Standards mentioned in the description

Abstract

Overview

Key topics and requirements

Scope: Field method for determining water‑soluble chlorides in non‑metallic abrasives using a prepackaged kit.
Sampling: Samples shall be representative and taken in accordance with ISO 11127‑1.
Reagent: A premeasured, biodegradable acidic extraction solution (pH 3.6 ± 0.2) is provided in the kit; typical weak acids include glycolic, acetic or citric acid.
Apparatus: Small sample container, larger testing container with premeasured extractant, glass chloride ion detection tube (per ISO 8502‑5), and a snapper to break tubes.
Procedure (field):
- Fill the small container with a representative abrasive sample.
- Pour sample into the larger container containing the premeasured extraction solution; cap and shake ~2 minutes.
- Allow settling (~5 min) or filter an aliquot, then insert the ion detection tube into the clear solution.
- Read chloride level from the tube graduation at the color change; result expressed in mg/kg.
Differences to laboratory method: Unlike ISO 11127‑7 (lab method using a weight:volume extraction with deionized water), EN ISO 11127‑8 uses equal volumes of sample and acidic extractant; results are not directly comparable between the two methods.
Confirmation: Disputed field results should be referred to ISO 11127‑7 laboratory testing, since ISO 11126 series limits are based on ISO 11127‑7 parameters.
Reporting: Test reports must identify the product, reference this standard, give results, note deviations, unusual observations, date and tester name.

Applications and users

Practical uses include:

Pre‑blast and pre‑coating quality checks to prevent chloride‑induced coating failure.
On‑site QA/QC screening by abrasive suppliers, blast contractors, coating specifiers, corrosion engineers and inspectors.
Rapid decision support for accepting or conditioning abrasive batches before blasting operations.

Keywords: EN ISO 11127-8:2024, field determination, water‑soluble chlorides, non‑metallic blast‑cleaning abrasives, chloride testing, surface preparation, ion detection tube, field kit.

Related standards

ISO 11127‑1 (sampling)
ISO 11127‑7 (laboratory chloride determination)
ISO 11126 (requirements for non‑metallic abrasives)
ISO 8502‑5 (ion detection tube method for chlorides on steel surfaces)

EN ISO 11127-8:2024 PDF

Technical details

Abstract

Overview

Key topics and requirements

Applications and users

Related standards

Related standards

Abstract

Overview

Key topics and requirements

Applications and users

Related standards

Related standards

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