EN ISO 11127-5:2021 PDF

Preparation of steel substrates before application of paints and related products - Test methods for non-metallic blast-cleaning abrasives - Part 5: Determination of moisture (ISO 11127-5:2020)

Название (английский):

EN ISO 11127-5:2021

Preparation of steel substrates before application of paints and related products - Test methods for non-metallic blast-cleaning abrasives - Part 5: Determination of moisture (ISO 11127-5:2020)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 12
Дата публикации:: 24 февраля 2021 г.
Издание:: CEN EN 11127 edition 2 version 1
ICS:: 25.220.10

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Описание (английский):

This document specifies a method for the determination of the level of free moisture present in non-metallic blast-cleaning abrasives. It is determined by measuring the mass lost on heating. This document is one of a number of parts of ISO 11127 dealing with the sampling and testing of non-metallic abrasives for blast-cleaning. The types of non-metallic abrasive and requirements on each are contained in the ISO 11126 series. The ISO 11126 series and the ISO 11127 series have been drafted as a coherent set of International Standards on non-metallic blast-cleaning abrasives. Information on all parts of both series is given in Annex A.

Технические детали

Технический комитет: CEN/TC 139 - Paints and varnishes
SKU: EN ISO 11127-5:2021

Abstract

Overview

EN ISO 11127-5:2021 (ISO 11127-5:2020) specifies a laboratory method for the determination of free moisture in non‑metallic blast‑cleaning abrasives used in surface preparation of steel prior to painting. Moisture is measured by the mass lost on heating; the procedure and reporting requirements are set out to support quality control, conformity assessment and specification compliance for blast‑cleaning abrasives.

Key topics and requirements

Scope: Determines free moisture (%) in non‑metallic blast‑cleaning abrasives by drying and weighing. Part of the ISO 11127 test‑methods series for abrasives.
Apparatus: ordinary lab glassware plus:
- container/tray resistant to heat,
- oven maintained at (110 ± 5) °C,
- balance accurate to 0.01 g,
- desiccator with suitable desiccant.
Sampling: Take a representative sample following ISO 11127‑1 (Sampling); store sealed until tested.
Test portion: Approximately 100 g test portion, weighed to 0.01 g. Container is pre‑dried, cooled in desiccator and tared before adding sample. Agitate sample to spread it and increase surface area for drying.
Drying procedure: Place the test portion in the oven at (110 ± 5) °C for at least 1 hour, then cool in the desiccator and re‑weigh.
Expression of results: Moisture content M (%) = (m0 − m1) / m0 × 100, where m0 is mass before heating and m1 after. Perform duplicate determinations; if they differ by > 0.05 % (absolute) repeat test. Report mean to nearest 0.01 %.
Test report must include: product identification (per ISO 11126 where applicable), reference to ISO 11127‑5:2020, result, deviations, unusual observations, date and tester name.

Practical applications and users

Quality control laboratories in abrasive manufacturing: verify moisture specification before packaging and shipment.
Coating specifiers and inspectors: confirm abrasive condition to ensure consistent blast performance and coating adhesion.
Contractors and asset owners: assess abrasive suitability on site or before use to avoid reduced abrasive effectiveness or contamination.
Standards and compliance teams: use as a reference in procurement specifications for blast‑cleaning abrasives and surface preparation contracts.

Keywords: EN ISO 11127-5:2021, ISO 11127-5, determination of moisture, non‑metallic blast‑cleaning abrasives, moisture content, surface preparation, abrasive testing, ISO 11126.

Related standards

ISO 11126 series - Specifications for non‑metallic blast‑cleaning abrasives (types and requirements).
ISO 11127 series (other parts) - sampling, particle size distribution, apparent density, hardness, soluble contaminants, chloride tests.

Overview

Key topics and requirements

Scope: Determines free moisture (%) in non‑metallic blast‑cleaning abrasives by drying and weighing. Part of the ISO 11127 test‑methods series for abrasives.
Apparatus: ordinary lab glassware plus:
- container/tray resistant to heat,
- oven maintained at (110 ± 5) °C,
- balance accurate to 0.01 g,
- desiccator with suitable desiccant.
Sampling: Take a representative sample following ISO 11127‑1 (Sampling); store sealed until tested.
Test portion: Approximately 100 g test portion, weighed to 0.01 g. Container is pre‑dried, cooled in desiccator and tared before adding sample. Agitate sample to spread it and increase surface area for drying.
Drying procedure: Place the test portion in the oven at (110 ± 5) °C for at least 1 hour, then cool in the desiccator and re‑weigh.
Expression of results: Moisture content M (%) = (m0 − m1) / m0 × 100, where m0 is mass before heating and m1 after. Perform duplicate determinations; if they differ by > 0.05 % (absolute) repeat test. Report mean to nearest 0.01 %.
Test report must include: product identification (per ISO 11126 where applicable), reference to ISO 11127‑5:2020, result, deviations, unusual observations, date and tester name.

Practical applications and users

Quality control laboratories in abrasive manufacturing: verify moisture specification before packaging and shipment.
Coating specifiers and inspectors: confirm abrasive condition to ensure consistent blast performance and coating adhesion.
Contractors and asset owners: assess abrasive suitability on site or before use to avoid reduced abrasive effectiveness or contamination.
Standards and compliance teams: use as a reference in procurement specifications for blast‑cleaning abrasives and surface preparation contracts.

Keywords: EN ISO 11127-5:2021, ISO 11127-5, determination of moisture, non‑metallic blast‑cleaning abrasives, moisture content, surface preparation, abrasive testing, ISO 11126.

Related standards

ISO 11126 series - Specifications for non‑metallic blast‑cleaning abrasives (types and requirements).
ISO 11127 series (other parts) - sampling, particle size distribution, apparent density, hardness, soluble contaminants, chloride tests.

EN ISO 11127-5:2021 PDF

Технические детали

Abstract

Overview

Key topics and requirements

Practical applications and users

Related standards

Похожие стандарты

Abstract

Overview

Key topics and requirements

Practical applications and users

Related standards

Похожие стандарты

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