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JJF 1687-2018 English PDF

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JJF 1687-2018: Calibration Specification for Hand-held Radiation Monitors for Detection and Identification of Radionuclides
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JJF 1687-2018English329 Add to Cart 3 days [Need to translate] Calibration Specification for Hand-held Radiation Monitors for Detection and Identification of Radionuclides Valid JJF 1687-2018

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Standard similar to JJF 1687-2018

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Basic data

Standard ID JJF 1687-2018 (JJF1687-2018)
Description (Translated English) Calibration Specification for Hand-held Radiation Monitors for Detection and Identification of Radionuclides
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A58
Word Count Estimation 14,187
Date of Issue 2018-02-27
Date of Implementation 2018-05-27
Regulation (derived from) AQSIQ Announcement No. 26 of 2018
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine

JJF 1687-2018: Calibration Specification for Hand-held Radiation Monitors for Detection and Identification of Radionuclides


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Hand-held radiation monitor calibration specifications for the detection and identification of radionuclides) National Metrology Technical Specification of the People's Republic Used to detect and identify radionuclides Handheld Radiation Monitor Calibration Specifications Published on.2018-02-27 2018-05-27 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued Used to detect and identify radionuclides Handheld Radiation Monitor Calibration Specifications Focal Point. National Ionizing Radiation Measurement Technical Committee Drafting unit. Shanghai Institute of Metrology and Testing Technology China Institute of Metrology Xinjiang Uygur Autonomous Region Institute of Metrology This Code entrusts the National Ionizing Radiation Measurement Technical Committee to explain Drafters of this specification. He Linfeng (Shanghai Institute of Metrology and Testing Technology) Tang Fangdong (Shanghai Institute of Metrology and Testing Technology) Liang Shucheng (China Institute of Metrology) Hao Rui (Xinjiang Uygur Autonomous Region Institute of Metrology) Zhao Chao (Shanghai Institute of Metrology and Testing Technology)

table of Contents

Introduction (II) 1 Scope (1) 2 References (1) 3 terms and units of measurement (1) 3.1 Terminology (1) 3.2 Unit of measurement (1) 4 Overview (1) 5 Measurement characteristics (2) 5.1 Nuclide recognition rate (2) 5.2 Relative intrinsic error (2) 5.3 Repeatability (2) 5.4 Neutron indication (2) 6 Calibration conditions (2) 6.1 Environmental conditions (2) 6.2 Measurement Standards (2) 7 Calibration items and calibration methods (2) 7.1 Nuclide identification (2) 7.2 Response (3) 7.3 Relative intrinsic error (3) 7.4 Repeatability (4) 7.5 Neutron indication (4) 8 calibration result expression (4) 9 re-study interval (4) Appendix A Recommended Format for Calibration Recording of Handheld Radiation Monitors for Detection and Identification of Radionuclides (5) Appendix B Contents of the Calibration Certificate for Handheld Radiation Monitors for Detecting and Identifying Radionuclides (7) Appendix C Example of Uncertainty Evaluation of Response/Calibration Factor Measurement Results for 137Cs γ Reference Radiation (8)

Introduction

This specification was drafted in accordance with JJF 1071-2010 “Rules for the Preparation of National Metrology Calibration Specifications”. The preparation of this specification mainly refers to GB/T 31837-2015 "for detecting, alarming and identifying radioactive materials. Handheld Radiation Monitor, JJG393-2003 "X, gamma radiation dose equivalent (rate) instrument and monitoring for radiation protection Instrument and IEC 62327.2006 "Radiation protection instrument for detecting and identifying radionuclides and indicating photon radiation Technical standards and standards for environmentally-acceptable rate equivalent handheld measuring instruments. This specification is the first release. Handheld Radiation Monitor Calibration Specifications for Detection and Identification of Radionuclides

1 Scope

This specification applies to hand-held instruments that have the function of identifying radionuclides and indicating the dose equivalent rate around gamma radiation. The calibration is also applicable to the calibration of nuclide identification instruments with neutron detection. This specification does not apply to the calibration of high purity gamma spectrometers.

2 reference files

This specification refers to the following documents. JJF 1001-2011 General Measurement Terms and Definitions GB/T 4960.6-2008 Nuclear engineering terminology - Part 6. Nuclear instrumentation GB/T 31837-2015 Handheld radiation monitor for detecting, alarming and identifying radioactive materials IEC 62327.2006 Radiation protection equipment for the detection and identification of radionuclides and indicating photon radiation weeks Hand-held instrument with a dose equivalent rate (Radiationprotection instrumentation-Hand-heldinstruments Forthedetectionandidentificationofradionuclidesandfortheindicationofambientdoseequiv- Alentratefromphotonradiation) For dated references, only dated versions apply to this specification; undated quotations The latest version (including all amendments) applies to this specification.

3 terms and units of measure

3.1 Terminology JJF 1001-2011, GB/T 4960.6-2008 defined and the following terms and definitions apply to this specification. 3.1.1 Nuclide recognition rate identificationrateofradionuclides The ability of the instrument to distinguish gamma radionuclides. 3.1.2 Relative intrinsic error relativeintrinsicerror Relative error in response of equipment or equipment when exposed to 137Cs gamma reference radiation under standard test conditions. 3.2 Unit of measurement 3.2.1 [Radioactivity] Activity. Becker [Ler]; Symbol. Bq. 3.2.2 Peripheral dose equivalent rate. Swarth hourly; symbol. Sv·h-1

4 Overview

Handheld radiation monitors (hereinafter referred to as nuclide identifiers) for detecting and identifying radionuclides are detected Components, multi-channel analyzers, recognition software, radionuclide libraries, data processing and display systems. Radiation detector Detectors such as NaI, CsI, and LaBr3 are usually used. Mainly used in customs, entry and exit inspection and quarantine, environmental protection, nuclear power, medical and health, resource recycling, etc. Detection of radioactive materials, radioactive contamination and identification of nuclide.

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