BS-EN-60580 pdf free download

BS-EN-60580 pdf free download.Dose area product meters.
The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of lEO and ISO maintain registers of currently valid International Standards. IEC 60417 (all parts), Graphical symbols for use on equipment IEC 60601-1:1988, Medical electrical equipment— Part 1: General requirements for safety IEC 60601-1-1:1992, Medical electrical equipment — Part 1-1: General requirements for safety — Collateral standard. Safety requirements for medical electrical systems IEC 60601-1-2:1993, Medical electrical equipment — Part 1-2: General requirements for safety — Collateral standard: Electromagnetic compatibility — Requirements and tests lEG 60731:1997, Medical electrical equipment — Dosimeters with ionization chambers as used in radiotherapy lEG 60788:1984, Medical radiology— Terminology IEC 60950:1999, Safety of information technology equipment IEC 61000-4-2:1995, Electromagnetic compatibility (EMC) — Part 4-2: Testing and measurement techniques — Electrostatic discharge immunity test IEC 61000-4-3:1995, Electromagnetic compatibility (EMC) — Part 4-3: Testing and measurement techniques — Radiated, radio-frequency, electromagnetic field immunity test 1)
3 Terminology and definitions
In this International Standard the auxiliary verb
— “shall” implies that compliance with a requirement is mandatory for compliance with the standard;
— “may” implies that compliance with a requirement is permitted to be accomplished in a particular manner for compliance with the standard.
The definitions given in this International Standard are generally in agreement with those in IEC 60788 and ISO: International vocabulary of basic and general terms in metrology; uncertainties are evaluated in accordance with ISO: Guide to the expression of uncertainty in measurement.
Terms not defined in this subclause or listed in the index of defined terms have the meanings defined in the above publications or are assumed to be terms of general scientific usage. An alphabetical list of defined terms is given in the index.
For the purposes of this International Standard the following definitions apply:
ACCOMPANYING DOCUMENTS
documents provided with an installation, equipment, associated equipment or accessory, containing important information for the assembler, installer and user, particularly regarding safety
4.5.3 STABILIZATION TIME The instrument shall be switched on for at least the STABILIZATION TIME quoted by the MANUFACTURER, before the start of the compliance test. In addition, the IONIZATION CHAMBER should be allowed to attain thermal equilibrium with the environment and it should have the polarizing voltage applied for a period of time equal to or greater than the specified STABILIZATION TIME. 4.5.4 Adjustments during test Compliance tests shall be performed with the instrument ready for use, after the STABILIZATION TIME and after making any necessary preliminary adjustments. During the tests, adjustments may be repeated at intervals as long as they do not interfere with the effect to be verified. For example, zero setting is not permitted during tests for measuring the LEAKAGE CURRENT. 4.5.5 Uniformity of radiation field The uniformity over the part of the USEFUL FIELD used for the compliance test shall be checked，for example， by scanning the radiation field with a small IONIZATION CHAMBER compared with the size of the USEFUL FIELD. Appropriate corrections shall be made to ensure an uncertainty of the test results of not more than one-fifth of the LIMITS OF VARIATION under test. NOTE The field uniformity of any X-RAY TUBE is subject to deterioration in use; regular checks should therefore be made.BS-EN-60580  pdf download.