GB/Z 28820.2-2012 (English Version) PDF

Standard No.: GB/Z 28820.2-2012
Language: Chinese, Available in English version
Release Date: 2012
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/Z 28820.2-2012

Scope: This part of GB/Z28820 applies to the procedure for predicting aging at low dose rates. This section gives 3 methods based on extrapolation of high dose rate test data to obtain low dose rate data under general use conditions. These methods all assume that homogeneous oxidation has been achieved under the experimental conditions. This section applies to various elastomers, thermoplastic materials and some thermosetting materials. The various methods themselves are also being continuously improved and perfected. In order to be able to predict low dose rate conditions, considerable experimental data are required. The exponential extrapolation method is mainly used for isothermal data, while the triple-addition method can use data obtained under various temperature conditions.

GB/Z 28820.2-2012 Referenced Document

GB/T 26168.1-2010 Electrical insulating materials.Determination of the effects of ionizing radiation.Part 1: Radiation interaction and dosimetry
GB/T 26168.2-2010 Electrical insulating materials.Determination of the effects of ionizing radiation.Part 2:Procedures for irradiation and test
GB/T 26168.3-2010 Electrical insulating materials.Determination of the effects of ionizing radiation.Part 3:Classification system for service in radiation environments
GB/Z 28820.1-2012 Long-term radiation ageing in polymers.Part 1:Techniques for monitoring diffusion-limited oxidation

2012 GB/Z 28820.2-2012 Long-term radiation ageing in polymers.Part 2：Procedures for predicting ageing at low dose rates