Overview
ISO/ASTM 52701:2013 - Guide for performance characterization of dosimeters and dosimetry systems for use in radiation processing - provides guidance for evaluating how dosimeters and complete dosimetry systems perform under realistic conditions. The standard defines the influence quantities (e.g., temperature, humidity, dose rate, radiation energy, time) that can affect dosimeter response and directs users to established methods for quantifying those effects. It also clarifies the roles of manufacturers, suppliers, and users in characterizing dosimeter performance and preparing documentation.
Keywords: ISO/ASTM 52701:2013, dosimeter characterization, dosimetry systems, radiation processing, influence quantities
Key topics and requirements
- Performance characteristics - Guidance on useful dose range, reproducibility, linearity, and limits of detection for dosimeters and systems.
- Influence quantities - Identification and consideration of environmental and irradiation variables (temperature, relative humidity, absorbed-dose rate, radiation energy, light exposure, elapsed time) that affect response.
- Measurement instruments - Requirements for instrument operating procedures, calibration, repeatability and reproducibility evidence, and traceability of measurements.
- Experimental design & statistical analysis - Use of design-of-experiments principles and statistical tools (e.g., factorial experiments, ANOVA) to assess single and combined influence effects.
- Documentation & repeatability - Recommendations for documenting characterization procedures, calibration curves, and conditions under which dosimeters were evaluated.
- Roles & responsibilities - Manufacturer/supplier obligations to supply performance data and users’ responsibilities to verify suitability for specific processing applications.
- Measurement uncertainty - Guidance to consider uncertainty components associated with dosimeter response and system calibration (references provided to established uncertainty guides).
Practical applications
- Selecting or qualifying dosimeters for sterilization, food irradiation, polymer crosslinking, and other industrial radiation processing.
- Designing acceptance tests and characterization studies to demonstrate dosimeter suitability for a given process environment.
- Developing calibration curves and operational procedures for routine dosimetry with documented traceability and uncertainty estimates.
- Investigating combined environmental/irradiation effects on dosimeter response to support quality control and regulatory compliance.
Who should use this standard
- Dosimeter manufacturers and suppliers preparing product specifications and performance data.
- Radiation processing facility managers and quality assurance personnel evaluating or qualifying dosimetry systems.
- Metrologists and dosimetrists performing calibration, uncertainty evaluation, and experimental tests of dosimeters.
- Regulators and auditors assessing dosimetry practices in industrial irradiation operations.
Related standards and references
- ISO/ASTM Practice 51261 - Calibration of routine dosimetry systems
- ISO/ASTM Practice 52628 - Dosimetry in radiation processing (applications guidance)
- ISO/ASTM Guide 51707 - Estimating uncertainties in dosimetry
- JCGM GUM / VIM - Measurement uncertainty and metrology vocabulary
Using ISO/ASTM 52701:2013 helps ensure robust dosimeter characterization, reliable absorbed-dose measurements, and better control of radiation-processing quality.