EN 932-6:1999

Tests for general properties of aggregates - Part 6: Definitions of repeatability and reproducibility

This European Standard gives definitions of repeatability and reproducibility adapted form ISO 5725-1 to the specific situation of sampling and testing aggregates. These adjustments have been made because test portions or test specimens of aggregates are usually not identical to each other as specified in ISO 5725-1.

Prüfverfahren für allgemeine Eigenschaften von Gesteinskörnungen - Teil 6: Definitionen von Wiederholpräzision und Vergleichpräzision

Diese Europäische Norm definiert Begriffe fu(r Wiederholpra(zision und Vergleichpra(zision, angepaßt von ISO 5725-1 and die spezifische Situation der Probenahme und Prüfung von Gesteinskörnungen. Die Anpassungen wurden durchgefu(hrt, da in Abweichung zur Festlegung in ISO 5725-1 Meßproben oder Einzelmeßproben von Gesteinskörnungen u(blicherweise nicht identisch sind.

Essais pour déterminer les propriétés générales des granulats - Partie 6: Définitions de la répétabilité et de la reproductibilité

La présente norme européenne donne les définitions de la répétabilité et de la reproductibilité, adaptées de l'ISO 5725-1 pour le cas spécifique de l'échantillonnage et des essais de granulats. Cette adaptation a été faite du fait que les prises d'essai et les éprouvettes de granulats ne sont généralement pas identiques ` celles spécifiées dans l'ISO 5725-1.

Preskusi splošnih lastnosti agregatov - 6. del: Definicije ponovljivosti in primerljivosti

General Information

• Status: Published
• Publication Date: 18-May-1999
• Withdrawal Date: 30-Nov-2003
• ICS: 01.040.91 - Construction materials and building (Vocabularies)
• ICS: 91.100.15 - Mineral materials and products
• Technical Committee: CEN/TC 154 - Aggregates
• Drafting Committee: CEN/TC 154/SC 6 - Test methods
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 21-Oct-2020
• Completion Date: 23-Sep-2025
• Ref Project: SIST EN 932-6:1999 - Tests for general properties of aggregates - Part 6: Definitions of repeatability and reproducibility

Relations

• Child: EN 932-5:1999 - Tests for general properties of aggregates - Part 5: Common equipment and calibration
• Effective Date: 22-Dec-2008

Overview

EN 932-6:1999 - Tests for general properties of aggregates, Part 6 - provides definitions of repeatability and reproducibility specifically adapted from ISO 5725-1 for the context of aggregate sampling and testing. Because aggregate test portions and specimens are often non‑identical, this European Standard adjusts the general ISO definitions to reflect the practical variability inherent in mineral aggregates and construction materials. EN 932-6:1999 is produced by CEN and is part of the EN 932 series addressing general properties of aggregates.

Key topics and requirements

• Definitions of precision terms: Clear, standardized definitions of repeatability and reproducibility as they apply to aggregate tests.
• Adaptation from ISO 5725-1: Modifications of ISO 5725-1 terminology and concepts to account for non‑identical test portions common in aggregate testing.
• Sources of variability: Recognition of variability introduced by sampling, preparation of test portions, and test procedures rather than assuming identical specimens.
• Statistical context: Guidance on interpreting precision in the context of inter‑laboratory comparisons and routine laboratory measurements (without prescribing specific numerical limits).
• Scope limitations: Applies to tests for general properties of aggregates and complements method‑specific standards that specify test procedures.

Applications

EN 932-6:1999 is practical for organizations involved in aggregate quality assessment and standardization:

• Aggregate producers and quarries - to understand how test results may vary and to interpret precision claims.
• Testing laboratories - for designing inter‑laboratory comparisons, documenting measurement uncertainty sources, and improving quality control.
• Construction engineers and specifiers - to set realistic acceptance criteria and evaluate test result consistency for materials used in concrete, asphalt, and base courses.
• Certification and compliance bodies - to assess laboratory performance and consistency of reported aggregate properties.
• Standards committees and researchers - as a reference when adapting statistical precision concepts to particulate or bulk material testing.

Related standards

• ISO 5725-1 (Accuracy - basic concepts and general principles for repeatability and reproducibility) - foundational source for statistical definitions.
• Other parts of EN 932 series - for specific test methods and procedures on aggregate properties.
• Method‑specific EN standards for aggregate tests (e.g., grading, density, water absorption) - used alongside EN 932-6 to interpret precision in practical testing.

Keywords: EN 932-6:1999, aggregates, repeatability, reproducibility, ISO 5725-1, sampling, aggregate testing, precision, CEN, construction materials.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Preskusi splošnih lastnosti agregatov - 6. del: Definicije ponovljivosti in primerljivostiPrüfverfahren für allgemeine Eigenschaften von Gesteinskörnungen - Teil 6: Definitionen von Wiederholpräzision und VergleichpräzisionEssais pour déterminer les propriétés générales des granulats - Partie 6: Définitions de la répétabilité et de la reproductibilitéTests for general properties of aggregates - Part 6: Definitions of repeatability and reproducibility91.100.1
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