In this paper the radiometric properties of a silver dichromate dosimeter of grinding mouth glass bottle in the dose range of 0. 7 - 50 kGy are reported. Relation between absorbed dose （kGy） and net absorbance ΔA（ = Ao-Ai） is a second-order polynominal

polynominal constant does not depend on Ao. Temperature coefficient during measurement and irradiation

acidity affect of perchloric acid as well as dose rate effects in 22. 3 - 5400Gy/ h range and so on have been experimentally investigated. The applied range and total uncertainty of the dosimeter are discussed.