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JJG 478-2016 English PDF

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JJG 478-2016: α, β Surface Contamination Monitors
Status: Valid

JJG 478: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 478-2016English329 Add to Cart 3 days [Need to translate] α, β Surface Contamination Monitors Valid JJG 478-2016
JJG 478-1996English279 Add to Cart 3 days [Need to translate] V.R.of Alpha Beta and Gamma Surface Contamination Instruments Obsolete JJG 478-1996
JJG 478-1986EnglishRFQ ASK 3 days [Need to translate] (Chinese Industry Standard) Obsolete JJG 478-1986

PDF similar to JJG 478-2016


Standard similar to JJG 478-2016

GB/T 3222.1   JJG 188   JJF 1396   JJG 852   JJG 377   JJG 393   

Basic data

Standard ID JJG 478-2016 (JJG478-2016)
Description (Translated English) ��, �� Surface Contamination Monitors
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A58
Word Count Estimation 14,184
Date of Issue 2016-11-30
Date of Implementation 2017-05-30
Older Standard (superseded by this standard) JJG 478-1996
Quoted Standard JJF 1001-2011; GB/T 4960.1-2010; GB/T 4960.6-2008; GB/T 5202-2008; GB/T 8997-2008
Regulation (derived from) State Administration of Quality Supervision, Inspection and Quarantine Notice No.119 of 2016
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to the first test of ��, �� surface contamination test, follow-up inspection and inspection in use, including �� surface contamination measuring instrument and monitor, �� surface contamination measuring instrument and monitor, and ��/�� surface contamination measuring instrument and monitoring instrument. This procedure does not apply to the fixed ��, �� personal surface contamination measurement monitoring device and the maximum energy less than 60 keV �� particle measurement or monitoring instrument verification.

JJG 478-2016: α, β Surface Contamination Monitors

---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.
α, β Surface Contamination Monitors National Metrological Verification Regulation of the People's Republic of China α, β surface contamination meter 2016-11-30 release 2017-05-30 implementation State Administration of Quality Supervision, Inspection and Quarantine issued Verification procedure of α, β surface contamination meter VerificationRegulationforα, β Replacing JJG 478-1996 Unit. National Diameter Radiation Metrology Technical Committee The main drafting unit. Shanghai Institute of Metrology and Testing Technology Participated in the drafting unit. Beijing Institute of Metrology and Testing Shenzhen Institute of Measurement and Quality Inspection This procedure is entrusted to the National Council on Ionizing Radiation Metrology The main drafters of this procedure. Tang Fangdong (Shanghai Institute of Metrology and Testing Technology) He Linfeng (Shanghai Institute of Metrology and Testing Technology) ZHAO Gui-kun (Beijing Institute of Metrology and Measurement Science) Zhou Yingchun (Shenzhen Institute of Measurement and Quality Inspection) Participate in the drafters. Luo Chen (Beijing Institute of Metrology and Testing) Li Mingzhao (Shenzhen Institute of Measurement and Quality Inspection) Lu Xiaojun (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 Terms (1) 3.2 Unit of measurement (1) 4 Overview (1) 5 Measurement performance requirements (2) 6 General technical requirements (2) 6.1 Appearance (2) 6.2 Identification (2) 7 Metering device control (2) 7.1 Test conditions (2) 7.2 Verification Project (3) 7.3 Verification method (3) 7.4 Processing of test result (4) 7.5 Test cycle (4) Appendix A Test Record Recommended Format (5) Appendix B Certification Certificate Information and Recommended Formats (6) Appendix C Results of the results of the notice and recommended format (7) Appendix D Surface activity response and its calculation method (8) Appendix E Methods of measurement of calibration factors (9)

Introduction

α, β surface contamination meter is a commonly used radiation protection equipment for open radioactive workplace radioactive surface Pollution monitoring, the measurement performance directly affect the monitoring results of accurate and reliable, related to radiation safety. JJF1002-2010 "Rules for the preparation of national metrological verification procedures", JJF1001-2011 "General measurement terms and Definition ", JJF1059.1-2012" measurement uncertainty assessment and representation "together constitute the basis for the development of the rules Nature specification. The revision of this procedure is based on GB/T 8997-2008 "α, β surface contamination measuring instrument and monitor Quasi ", GB/T 5202-2008" radiation protection equipment α, β and α/β (β energy greater than 60keV) pollution measuring instrument and Monitor "as the main technical reference. Compared with JJG 478-1996, in addition to editorial changes, the main technical changes are as follows. --- the name of the program changed to "α, β surface pollution meter", canceled the "γ surface pollution meter"; - Increased requirements for standard plane source value uncertainty; --- to relax the test conditions on the ambient temperature requirements; --- cancel the "β energy response" test items; --- increase the "background count rate" test items; --- "surface emissivity response" instead of "surface activity response"; --- "basic error" is replaced by "relative inherent error"; The method of calculating the surface activity response and the measurement method of the calibration factor in the appendix. The previous versions of this order are released as follows. --- JJG 478-1996. Verification procedure of α, β surface contamination meter

1 Scope

This procedure applies to the first test of α, β surface contamination meter, subsequent verification and inspection in use, including α surface Pollution measuring instrument and monitor, β surface contamination measuring instrument and monitor, and α/β surface contamination measuring instrument and monitor. This procedure does not apply to fixed α, β personal surface contamination measurement monitoring devices and the maximum energy less than 60keV Of the beta particle measurement or monitoring instrument.

2 reference file

This procedure refers to the following documents. Standard Terminology and Definitions for JJF1001-2011 Nuclear science and technology terminology - Part 1. Nuclear physics and nuclear chemistry GB/T 4960.1-2010 Nuclear science and technology terminology - Part 6. Nuclear instrumentation GB/T 4960.6-2008 GB/T 5202-2008 Radiation protection equipment α, β and α/β (β energy greater than 60keV) Pollution measuring instrument and Monitor GB/T 8997-2008 Calibration of α, β surface contamination measuring instrument and monitor For dated references, only the dated edition applies to this rule; references that are not dated , The latest version (including all modified units) applies to this procedure.

3 terms and units of measurement

3.1 terminology JJF1001-2011, GB/T 4960.1-2010, GB/T 4960.6-2008 Defined and the following terms and The definition applies to this procedure. 3.1.1 Surface emissivity response surfaceemissionrateresponse Under certain conditions, the response of the measuring instrument or device (system) to the stimulating effect is called a response The indication of the value and the amount of encouragement. When the magnitude of the radiation source is expressed as the surface emissivity, it is called the surface emissivity response. 3.1.2 Surface activity response surfaceactivityresponse α, β surface contamination of the standard plane source of the value of the standard plane with the unit area of the activity of the quotient. 3.2 Units of measurement 3.2.1 [radioactive] activity. beige [lux]; symbol. Bq. 3.2.2 [source] Surface emissivity. 2π particles per minute; Symbol. (min · 2πsr) -1.

4 Overview

α, β surface contamination meter includes portable α, β surface contamination measuring instrument and monitor, which has the alarm function. By the detector, signal processing and display components, usually using scintillator detectors or gas detectors for the opening

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