Standard Guidance for Use of Radiation-Sensitive Indicators

Importancia y uso:

4.1 Indicators may be used to show that products have been exposed to a radiation source. They should be used only to provide a qualitative indication of radiation exposure and may be used to distinguish process loads that have been irradiated from unirradiated loads.

Note 1: The use of indicators does not eliminate the need for other process-control procedures, such as quantitative dosimetry or the controlled segregation of irradiated from nonirradiated products.

Note 2: See ASTM Standards 51608, 51649, 51702, 51939, and 51940 for information on the use of indicators in the various types of processing facilities and for unique product applications.

4.2 The indicator manufacturer is obliged to supply a statement regarding the approximate dose level at which the examiner (20/20 vision), at standard illumination (unfiltered daylight, or artificial light of the spectrum and intensity defined by the proper ASTM standard), is able to determine the visual change in the indicator.

Subcomité:

E61.04

Volúmen:

12.02

Número ICS:

17.240 (Radiation measurements)

Palabras clave:

electron beam; gamma radiation; ionizing radiation; irradiation; radiation indicator; radiation processing; radiation-sensitive indicator; X-radiation; X-rays;