British Standards Institution

Source:: CEN
Committee:: B/557 - Construction products - Assessment of dangerous substances
Categories:: Construction materials. General
Number of comments:: 0

Scope

This document describes a test method for the determination of the activity of the radionuclides radium-226, thorium-232 and potassium-40 in construction products using semiconductor gamma-ray spectrometry.

This document describes sampling from a laboratory sample, sample preparation, and the sample measurement by semiconductor gamma-ray spectrometry. It includes background subtraction, energy and efficiency calibration, spectrum analysis, activity calculation with the associated uncertainties or the decision threshold and detection limit calculation, and the reporting of results.

The scope of this document is not product-specific. However, there are a limited number of product-specific components, such as the preparation of the laboratory sample and drying of the test portion. The method is applicable to samples from products consisting of single or multiple constituents.

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Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

17/03/2023

3. Public Comments

Public Comments start date:

19/06/2023

Public Comments end date:

27/08/2023

4. Comment Resolution

Comment Resolution start date:

19/08/2024

5. Approval

6. Publication

Publication start date:

07/11/2024

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Standards Development

BS EN 17216 Construction products: Assessment of release of dangerous substances - Determination of radium-226, thorium-232 and potassium-40 activity using gamma-ray spectrometry

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