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[en] The paper describes the testing performed on an extremity dosimetry system to measure the personal dose equivalent Hp(0.07) in photon and beta reference fields. This research refers to the American National Standard Institute to organize the performance testing for the INER's TLD-100H extremity ring dosimeters. The results show that tolerance level (L), absolute of bias (|B|) and standard deviation (S) for all categories of performance testing meet the ANSI N13.32 performance testing criteria. The performance testing results were suggested to be an important step of an accreditation procedure for the extremity ring dosimetry system in Taiwan. Besides, the dose evaluation of extremity ring dosimeters to measure Hp(0.07) in realistic fields of nuclear medicine is also verified. The reference values of Hp(0.07) were calculated using the Monte Carlo method normalized by the measured activity of the radioactive solution. For nuclear medicine irradiations the relative response to 201Tl and 99mTc radionuclides produced by INER are also satisfactory.