ISO 19238:2023

ISO 19238:2023

August 2023
International standard Current

Radiological protection - Performance criteria for service laboratories performing biological dosimetry by cytogenetics - Dicentric assay

This document provides criteria for quality assurance and quality control, evaluation of the performance and the accreditation of biological dosimetry by cytogenetic service laboratories using the dicentric assay performed with manual scoring.This document is applicable toa)    the confidentiality of personal information, for the requestor and the service laboratory,b)    the laboratory safety requirements,c)    the calibration sources and calibration dose ranges useful for establishing the reference dose-response curves that contribute to the dose estimation from unstable chromosome aberration frequency and the detection limit,d)    the scoring procedure for unstable chromosome aberrations used for biological dosimetry,e)    the criteria for converting a measured aberration frequency into an estimate of absorbed dose,f)     the reporting of results,g)    the quality assurance and quality control, andh)    informative annexes containing sample instructions for requestor (see Annex A), sample questionnaire (see Annex B), sample report (see Annex C), fitting of the low dose-response curve by the method of maximum likelihood and calculating the error of the dose estimate (see Annex D), odds ratio method for cases of suspected exposure to a low dose (see Annex E), a method for determining the decision threshold and detection limit (see Annex F) and sample data sheet for recording aberrations (see Annex G).

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Main informations

Collections

International ISO standards

Thematics

QSE, Gestion des risques et SST, Sécurité

Publication date

August 2023

Number of pages

39 p.

Reference

ISO 19238:2023

ICS Codes

17.240   Radiation measurements
13.280   Radiation protection

Print number

1
Sumary
Radiological protection - Performance criteria for service laboratories performing biological dosimetry by cytogenetics - Dicentric assay

This document provides criteria for quality assurance and quality control, evaluation of the performance and the accreditation of biological dosimetry by cytogenetic service laboratories using the dicentric assay performed with manual scoring.

This document is applicable to

a)    the confidentiality of personal information, for the requestor and the service laboratory,

b)    the laboratory safety requirements,

c)    the calibration sources and calibration dose ranges useful for establishing the reference dose-response curves that contribute to the dose estimation from unstable chromosome aberration frequency and the detection limit,

d)    the scoring procedure for unstable chromosome aberrations used for biological dosimetry,

e)    the criteria for converting a measured aberration frequency into an estimate of absorbed dose,

f)     the reporting of results,

g)    the quality assurance and quality control, and

h)    informative annexes containing sample instructions for requestor (see Annex A), sample questionnaire (see Annex B), sample report (see Annex C), fitting of the low dose-response curve by the method of maximum likelihood and calculating the error of the dose estimate (see Annex D), odds ratio method for cases of suspected exposure to a low dose (see Annex E), a method for determining the decision threshold and detection limit (see Annex F) and sample data sheet for recording aberrations (see Annex G).

Replaced standards (1)
ISO 19238:2014
February 2014
International standard Cancelled
Radiological protection - Performance criteria for service laboratories performing biological dosimetry by cytogenetics

ISO 19238:2014 provides criteria for quality assurance and quality control, evaluation of the performance, and the accreditation of biological dosimetry by cytogenetic service laboratories. ISO 19238:2014 addresses a) the confidentiality of personal information, for the customer and the service laboratory, b) the laboratory safety requirements, c) the calibration sources and calibration dose ranges useful for establishing the reference dose-effect curves that contribute to the dose estimation from chromosome aberration frequency and the minimum resolvable doses, d) the scoring procedure for unstable chromosome aberrations used for biological dosimetry, e) the criteria for converting a measured aberration frequency into an estimate of absorbed dose, f) the reporting of results, g) the quality assurance and quality control, h) informative annexes containing sample instructions for customer, sample questionnaire, sample of report, fitting of the low dose-response curve by the method of maximum likelihood and calculating the error of dose estimate, odds ratio method for cases of suspected exposure to a low dose, and sample data sheet for recording aberrations.

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