Verification of the sampling procedure for radioactivity analysis of waste and industrial material.
Radiat Prot Dosimetry
; 199(8-9): 941-946, 2023 May 24.
Article
en En
| MEDLINE
| ID: mdl-37225179
ABSTRACT
In accordance with ISO/IEC 170252017, the testing laboratory needs to verify its ability to properly perform methods. For radiological testing, the sampling does not affect the results directly, but it has to ensure that sample adequately represents the tested material. To verify the procedure, a sampling of red mud and bauxite ore was conducted. All samples were measured in identical geometry by HPGe spectrometer. The counting rates per unit mass in the recorded spectra were compared. For each measurement series, the mean and standard deviations of respected peaks were calculated, as well as average and standard deviation of all series. The obtained results of each individual series were considered satisfactory, i.e. sampling procedure ensures the representativeness of the bulk material, if it is within ± two standard deviations of the average of the mean values.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Radiactividad
/
Radiología
Idioma:
En
Año:
2023
Tipo del documento:
Article