GB/T 25439-2010 (English Version) PDF

Standard No.: GB/T 25439-2010
Language: Chinese, Available in English version
Release Date: 2010
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 25439-2010

Scope: This standard specifies the operation and test procedures for the use of cellulose triacetate (CTA) dosimetry systems to determine the absorbed dose and dose distribution in irradiated materials expressed as water absorbed dose under electron and photon irradiation. The CTA dosimeter is a working dosimeter suitable for dose distribution measurement. This standard stipulates that the applicable conditions of the CTA dose measurement system are: Absorbed dose range: 10kGy～300kGy. Absorbed dose rate range: 3Gy·s^-1～4*10¹⁰Gy·s^-1. Electron radiation energy range: 0.2MeV～50MeV. Photon radiation energy range: 0.1MeV～50Mev. Dosimeter irradiation temperature range: -10℃～70℃. This standard does not address safety issues associated with use. The user of this standard is responsible for establishing applicable safety and health standards and determining applicable limitations prior to use.

GB/T 25439-2010 Referenced Document

ASTM E170 Standard Terminology Relating to Radiation Measurements and Dosimetry
ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM E178 Standard Practice for Dealing With Outlying Observations
ASTM E925 Standard Practice for Monitoring the Calibration of Ultraviolet-Visible Spectrophotometers whose Spectral Slit Width does not Exceed 2 nm
ASTM E958 Standard Practice for Measuring Practical Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
GB/T 16509 Standard guide for estimating uncertainties in dosimetry for radiation processing
GB/T 16510 The requirements for the competence of a radiation processing dosimetry calibration laboratory
GB/T 16640 Standard guide for selection and calibration of dosimetry systems for radiation processing

2010 GB/T 25439-2010 Standard method for using cellulose triacetate dosimetry system to measure absorbed dose