ISO 11665-9:2019 PDF

Name: ISO 11665-9:2019 — Measurement of radioactivity in the environment — Air: Radon-222 — Part 9: Test methods for exhalation rate of building materials
SKU: ISO 11665-9:2019
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Measurement of radioactivity in the environment — Air: Radon-222 — Part 9: Test methods for exhalation rate of building materials

Название (английский):

ISO 11665-9:2019

Measurement of radioactivity in the environment — Air: Radon-222 — Part 9: Test methods for exhalation rate of building materials

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 39
Дата публикации:: 14 мая 2019 г.
Издание:: ISO IS 11665 edition 2 version 1
ICS:: 13.040.01

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Описание (английский):

This document specifies a method for the determination of the free radon exhalation rate of a batch of mineral based building materials. This document only refers to 222Rn exhalation determination using two test methods: liquid Scintillation Counting (LSC) and gamma ray spectrometry (see Annex A and Annex B). The exhalation of thoron (220Rn) does not affect the test result when applying the determination methods described in this document.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 11665-9:2019 is part of the internationally recognized ISO 11665 series, focused on the measurement of radioactivity in the environment, specifically relating to radon-222 in air. This part of the standard defines standardized methods for the determination of the free radon exhalation rate from batches of mineral-based building materials. By covering both Liquid Scintillation Counting (LSC) and gamma ray spectrometry, ISO 11665-9:2019 supports accurate, repeatable measurement techniques essential for environmental safety, health risk assessments, and compliance with regulatory guidelines involving radon exposure.

Radon-222 exhalation from building materials is a significant factor in indoor air quality. High levels pose health risks, especially as radon decays into radioactive solids that can be inhaled. The standard helps stakeholders mitigate these risks by providing clear test procedures and definitions, ensuring consistency and reliability in testing results.

Key Topics

Radon-222 Measurement in Materials Provides detailed methodologies for determining the rate at which radon-222 gases are released (exhaled) from mineral-based building materials, a key criterion for assessing product safety.

Test Methods Specifies two main laboratory techniques:

Liquid Scintillation Counting (LSC): A method suitable for silica gel adsorbents to quantify radon exhalation from materials.
Gamma Ray Spectrometry: Detailed in annexes as an alternative method, commonly used for materials where radon is trapped in charcoal.

Sample Preparation and Conditioning Outlines standard procedures for preparing and conditioning building material samples, including temperature, humidity control, and curing processes to ensure reliable measurements.

Instrumentation and Calibration Lists apparatus, reagents, and calibration steps required to assure measurement accuracy and reproducibility.

Result Reporting and Uncertainty Describes how to express and calculate free radon exhalation rates, uncertainties, detection limits, and thresholds in the test report.

Applications

Building Material Compliance Used by manufacturers, laboratories, and regulators to verify that mineral-based building materials comply with national and international radon emission standards.

Health and Safety Assessments Supports risk assessments in occupational health, public safety, and environmental monitoring by providing accurate data on radon release from construction products.

Research and Development Assists in the development of low-emission building materials by enabling R&D departments to test and improve product formulations.

Building and Environmental Codes Facilitates the implementation of building codes addressing indoor air quality and supports authorities in enforcing radon mitigation strategies in existing and new buildings.

Related Standards

ISO 11665-1

Measurement of radioactivity in the environment - Air: radon-222 - Part 1: Origins of radon and its short-lived decay products and associated measurement methods.

ISO 11929

Determination of the characteristic limits (decision threshold, detection limit and limits of the confidence interval) for measurements of ionizing radiation - Fundamentals and application.

ISO/IEC 17025

General requirements for the competence of testing and calibration laboratories.

ISO 19361

Conditions for measuring activity of beta emitter radionuclides by liquid scintillation counting.

For professionals and organizations involved in radiation protection, environmental health, or materials testing, implementing ISO 11665-9:2019 ensures the reliability and comparability of radon exhalation measurements. Adhering to these methods supports regulatory compliance, public health, and product innovation in construction and environmental safety sectors.

ISO 11665-9:2019 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

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