M00018065
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ISO DIS 7503-1 2014 Edition, April 14, 2014 MEASUREMENT OF RADIOACTIVITY - MEASUREMENT AND EVALUATION OF SURFACE CONTAMINATION - PART 1: GENERAL PRINCIPLES
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Availability date: 07/14/2021
Description / Abstract:
The international standards ISO 7503 Part 1 to Part 3 and the
international standard ISO 8769 are addressed to the people
responsible for determining the radioactivity present on solid
surfaces. ISO 7503 is published in three parts and can be used
jointly or separately according to needs.
This International Standard ISO 7503 Part 1 relates to the
assessment of surface contamination by direct and indirect
measurements and the calibration of the associated
instrumentation.
The standard applies to alpha-, beta- and photon emitters and is
intended for use by hospitals, universities, police, or industrial
establishments. The standard also can be used in the assessment of
activity on trucks, containers, parcels, equipment and is
applicable in any organisation which handles radioactive materials.
Generally it is applicable to well defined flat surfaces where
direct methods are applicable, however it can also be used for
surfaces which are not flat and where indirect wipe tests would be
appropriate. These investigations may be carried out on containers,
inaccessible areas, non-flat areas where wipe tests can be used.
This standard is not intended for emergency situations i.e. nuclear
accidents where health physics professionals would be involved. The
standard is also not generally applicable in nuclear
establishments.
This international standard does not apply to the evaluation of
contamination of the skin, of clothing and of loose material such
as gravel.
NOTE The test method using wipe-test samples for the evaluation
of radioactive surface contaminations is dealt with in ISO 7503-2.
The calibration of instruments for the evaluation of radioactive
surface contaminations is dealt with in ISO 7503-3.