ISO 19461-1:2018 PDF

Radiological protection — Measurement for the clearance of waste contaminated with radioisotopes for medical application — Part 1: Measurement of radioactivity

Open preview (PDF)

Title (English):

ISO 19461-1:2018

Radiological protection — Measurement for the clearance of waste contaminated with radioisotopes for medical application — Part 1: Measurement of radioactivity

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 18
Publication date:: July 17, 2018
Edition:: ISO IS 19461 edition 1 version 1
ICS:: 13.280

Delivery type:

Full version25 €Read online 24h10 €Read online 72h15 €

Document language:

enru

Delivery time:Immediate download

Price:25 €

Description (English):

This document establishes a method for radioactivity measurement and determination of the storage periods of the radioactive wastes produced as a result of the medical application of radioisotopes based on counting measurements using a detector and decay correction of the initial activity concentration of the radioisotopes contained in the waste stream. It provides a set of controls and measurements for the self-clearance of the radioactive wastes by which the medical facility can be assured of meeting the clearance level. This document can also be used by testing laboratories or radioactive waste disposal operators. This document can also be useful for the guidance of the regulatory body. NOTE Due to the nature of the tests outlined, this document cannot be applied to pure beta emitting nuclides nor to alpha emitting nuclides with low energy gamma rays.

Technical details

Technical committee: ISO/TC 85/SC 2 - Radiological protection
SKU: ISO 19461-1:2018

Abstract

Overview

ISO 19461-1:2018 - Radiological protection - Measurement for the clearance of waste contaminated with radioisotopes for medical application - Part 1: Measurement of radioactivity - specifies a method for measuring radioactivity and determining minimum storage periods for radioactive wastes generated by medical use of radioisotopes. The standard uses counting measurements with detectors and decay correction of initial activity concentration to verify wastes meet a designated clearance level. It supports self-clearance by medical facilities and can be used by testing laboratories, waste disposal operators, and regulators. Note: this Part 1 method does not apply to pure beta emitters or alpha emitters with low-energy gamma rays.

Key topics

Measurement method: Counting measurements using detectors with decay correction to estimate initial activity concentration and evaluate decay to clearance.
Storage-period determination: Procedures to calculate minimum storage durations so waste decays below the applicable clearance level.
Controls and requirements: Pre-storage controls, measurement before storage, storage container and disposal method guidance.
Uncertainty and quality control: Requirements for evaluating measurement uncertainty, documentation, reporting and ongoing quality assurance.
Scope limitations: Explicit exclusion of pure beta-emitting nuclides and alpha emitters with low-energy gamma rays.
Supporting materials: Annexes provide example procedures and sample measurement results to aid implementation.

Applications

Who uses ISO 19461-1:2018 and how:

Medical facilities (hospitals, nuclear medicine departments): To implement self-clearance processes for short-lived radioisotope waste and to calculate storage time before non-radioactive disposal.
Testing laboratories: To perform traceable radioactivity measurements and report results consistent with clearance verification.
Radioactive waste disposal operators: To accept, verify and manage decay-storage of medical radioactive wastes.
Regulatory bodies: For guidance on acceptable measurement methods, documentation and demonstrating compliance with clearance criteria.

Practical benefits include standardized detector-based measurement procedures, traceable documentation of decay-based clearance, and improved confidence that disposed materials meet public dose and environmental protection objectives.

Related standards

ISO 19461 series (other parts) - for broader guidance across the clearance workflow.
International Atomic Energy Agency (IAEA) guidance (referenced in the standard) - for dose- and concentration-based clearance criteria and complementary approaches.

Keywords: ISO 19461-1:2018, radiological protection, measurement for the clearance of waste, radioactivity measurement, medical radioisotopes, decay correction, clearance level, self-clearance, radioactive waste disposal.

Related standards

Mentioned in the description and other ISO standards

Abstract

Overview

Key topics

Measurement method: Counting measurements using detectors with decay correction to estimate initial activity concentration and evaluate decay to clearance.
Storage-period determination: Procedures to calculate minimum storage durations so waste decays below the applicable clearance level.
Controls and requirements: Pre-storage controls, measurement before storage, storage container and disposal method guidance.
Uncertainty and quality control: Requirements for evaluating measurement uncertainty, documentation, reporting and ongoing quality assurance.
Scope limitations: Explicit exclusion of pure beta-emitting nuclides and alpha emitters with low-energy gamma rays.
Supporting materials: Annexes provide example procedures and sample measurement results to aid implementation.

Applications

Who uses ISO 19461-1:2018 and how:

Medical facilities (hospitals, nuclear medicine departments): To implement self-clearance processes for short-lived radioisotope waste and to calculate storage time before non-radioactive disposal.
Testing laboratories: To perform traceable radioactivity measurements and report results consistent with clearance verification.
Radioactive waste disposal operators: To accept, verify and manage decay-storage of medical radioactive wastes.
Regulatory bodies: For guidance on acceptable measurement methods, documentation and demonstrating compliance with clearance criteria.

Related standards

ISO 19461 series (other parts) - for broader guidance across the clearance workflow.
International Atomic Energy Agency (IAEA) guidance (referenced in the standard) - for dose- and concentration-based clearance criteria and complementary approaches.

ISO 19461-1:2018 PDF

Technical details

Abstract

Overview

Key topics

Applications

Related standards

Related standards

Abstract

Overview

Key topics

Applications

Related standards

Related standards

Textile machinery and accessories — Condenser bobbins for woollen spinning — Dimensions

Information technology — Information security incident management — Part 2: Guidelines to plan and prepare fo…

Risk management — Guidelines

Ships and marine technology — Specification for bunkering of liquefied natural gas fuelled vessels

Information technology — Information security incident management — Part 1: Principles and process

Information technology — Artificial intelligence (AI) — AI system impact assessment

Information technology — Information security incident management — Part 3: Guidelines for ICT incident respo…

Innovation management system — Requirements