As of January 27, 2013, Parcel Select was split into Parcel Select, for online purchasing, and Standard Post for purchasing at the Post Office. Parcel Select is significantly cheaper than Standard Post. Parcel Select ships at the same speed as First Class mail.
Wiktionary (0.00 / 0 votes) Rate this definition: dosimeter (Noun). A device used to measure a dose of ionising radiation. These normally take the form of either Optically Stimulated Luminescence (OSL), photographic film, thermoluminescent devices (TLD) or electronic personal dosimeters (PDM).
Dose: A general term used to refer to the effect on a material that is exposed to radiation. 1  Gray (Gy): The international system (SI) unit of radiation dose expressed in terms of absorbed energy per unit mass of tissue. 2  Sievert (Sv): A sievert is the standard international measurement of dose. 3  rad (R): The original unit developed for expressing ...