IEC 62327:2017 pdf download

IEC 62327:2017 pdf download.Radiation protection instrumentation – Hand-held instruments for the detection and identification of radionuclides and for the estimation of ambient dose equivalent rate from photon radiation
1 Scope
This document applies to hand-held instruments used to detect and identify radionuclides and radioactive material, to estimate ambient dose equivalent rate from photon radiation, and optionally, to detect neutron radiation. They are commonly known as radionuclide identification devices or RIDs. This document specifies general characteristics, general test procedures, radiation characteristics, as well as electrical, mechanical, safety, and environmental characteristics. This document does not cover laboratory type, high-resolution photon spectrometers, or instruments covered by IEC 60846-1 (Portable workplace and environmental meters and monitors), IEC 60846-2 (photon dose (rate) meters) or IEC 61 005 (neutron dose equivalent (rate) meters). Table 8 provides a summary of requirements and relevant clauses.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050-395:201 4, International Electrotechnical Vocabulary (IEV) – Part 395: Nuclear instrumentation: physical phenomena, basic concepts, instruments, systems, equipment and detectors IEC 60068-2-1 , Environmental testing – Part 2-1: Tests – Test A: Cold IEC 60068-2-2, Environmental testing – Part 2-2: Tests – Test B: Dry heat IEC 60068-2-1 1 , Basic environmental testing procedures – Part 2 -11: Tests – Test Ka: Salt mist IEC 60068-2-1 4, Environmental testing – Part 2-14: Tests – Test N: Change of temperature IEC 60068-2-1 8, Environmental testing – Part 2-18: Tests – Test R and guidance: Water IEC 60068-2-27:2008, Environmental testing – Part 2-27: Tests – Test Ea and guidance: Shock IEC 60068-2-64, Environmental testing – Part 2-64: Tests – Test Fh: Vibration, broadband random and guidance
3 Terms and definitions, abbreviated terms and symbols, quantities and units
3.1 Terms and definitions For the purposes of this document, the following terms and definitions, as well as those given in IEC 60050-395 apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: • IEC Electropedia: available at http://www.electropedia.org/ • ISO Online browsing platform: available at http://www.iso.org/obp 3.1 .1 acceptance test contractual test to prove to the customer that a device meets certain conditions of its specification 3.1 .2 alarm audible, visual, or other signal activated when the reading exceeds a pre-set value or falls outside a pre-set range 3.1 .3 ambient dose equivalent (rate) dose equivalent (rate) at a point in a radiation field, produced by the corresponding aligned and expanded field, in the ICRU sphere at a depth d, on the radius opposing the direction of the aligned field Note 1 to entry: This definition does not include the notes that are part of definition IEC 60050-395:201 4, 395-05-43. 3.1 .4 background radiation field in which there are no external sources present other than those in the natural radiation field at the location of the measurements3.1 .6 confidence indicator typically a numeric value assigned to a radionuclide identification result as to whether the identified radionuclide is present 3.1 .7 conventionally true value best estimate of the true value of a radiation field or source used for testing or calibration of equipment 3.1 .8 error of indication difference between the indicated value ν of a quantity and the conventionally true value, CTV, of that quantity at the point of measurement 3.1 .9 integration time length of time used for collection of data to obtain a result 3.1 .1 0 reference point location marked on the instrument or described in the manual, used to establish radiation source-to-instrument distances and orientation for calibration or test purposes 3.1 .1 1 relative intrinsic error ε REL difference between the instrument’s reading, M, and the conventionally true value, CTV, of the quantity being measured divided by the conventionally true value when subjected to a specified reference quantity under specified reference conditions as given by the formula: