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JJG 969-2002 English PDF

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JJG 969-2002: Verification regulation of gamma radioimmunoassay counters
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PDF similar to JJG 969-2002


Standard similar to JJG 969-2002

GB/T 3222.1   JJG 188   JJF 1396   JJG 852   JJG 377   JJG 962   

Basic data

Standard ID JJG 969-2002 (JJG969-2002)
Description (Translated English) Verification regulation of gamma radioimmunoassay counters
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A58
Word Count Estimation 10,189
Date of Issue 2002-04-15
Date of Implementation 2002-07-01
Quoted Standard GB 10255-1996; GB 4960-1996; GB/T 4080-1983; JJG 44-1999
Issuing agency(ies) State Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to single-and multi-sensor probe �� RIA counter initial verification, testing and use of the follow-up inspection. Count rate in the range of 3000/min ~ 200000/min, used radionuclide as ^ (125) I.

JJG 969-2002: Verification regulation of gamma radioimmunoassay counters

---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.
Verification regulation of gamma radioimmunoassay counters National Metrology Verification Regulations of the People's Republic Gamma radioimmunoassay counter Released on.2002-04-15 2002-07-01 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued This regulation was approved by the General Administration of Quality Supervision, Inspection and Quarantine on April 15,.2002, and It will take effect on July 1,.2002. Focal Point. National Ionizing Radiation Measurement Technical Committee Drafting unit. Shanghai Institute of Metrology and Testing Technology This regulation entrusts the National Ionizing Radiation Measurement Technical Committee to explain The main drafters of this procedure. Tang Fangdong (Shanghai Institute of Metrology and Testing Technology) Tan Yongkang (Shanghai Institute of Metrology and Testing Technology) Xu Shuxiang (Shanghai Nanyang Radioimmunoassay Center)

table of Contents

1 Scope (1) 2 Citations (1) 3 terms and units of measurement (1) 3.1 Terminology (1) 3.2 Unit of measurement (1) 4 Overview (1) 5 Metrological performance requirements (1) 5.1 background (1) 5.2 Activity Response (2) 5.3 Repeatability (2) 5.4 Nonlinearity of activity response (2) 6 General technical requirements (2) 6.1 Appearance (2) 6.2 Mechanical and electrical safety characteristics (2) 6.3 Measurement Room (2) 7 measuring instrument control (2) 7.1 Verification conditions (2) 7.2 Verification items and verification methods (3) 7.3 Processing of verification results (4) 7.4 Verification cycle (4) Appendix verification certificate and original record format (5) γ radioimmunoassay verification procedure

1 Scope

This procedure applies to the first verification, subsequent verification and use of gamma-emitting immune counters for single and multi-probes. test. The counting rate ranges from 3000/min to.200,000/min, and the commonly used nuclide is 125I.

2 Citations

This procedure refers to the following documents. GB 10255-1996 "gamma radioimmunoassay counter" GB 4960-1996 "Technical Terminology of Nuclear Science" GB/T 4080-1983 "Test tube size for radioactivity measurement" JJG (Shanghai) 44-1999 "γ radioimmunoassay counter" When using this procedure, care should be taken to use the current valid version of the above cited documents.

3 terms and units of measure

3.1 Terminology 3.1.1 Radioimmunoassay radioimmunoassayAnalysis Quantitative determination of the test using a specific binding reaction of a radionuclide-labeled antigen with a limited amount of the corresponding antibody A microanalytical method for the concentration of a substance. 3.1.2 Activity response activityresponse The instrument response (after correction of the background) expressed in count rate is divided by the activity of the standard source. 3.2 Unit of measurement Symbol of activity response. R, unit of measurement. Bq-1·s-1; Symbol of the background. Cb, unit of measurement. min-1; Repetitive symbol. S, unit of measure. dimensionless; Symbol of activity response nonlinearity. L, unit of measure. dimensionless.

4 Overview

The gamma radioimmunoassay counter (hereinafter referred to as the radioactivity counter) is mainly composed of a probe, a counting device, and a data processing system. The composition of the system. A gamma radiation detector composed of a NaI (T1) crystal and a photomultiplier tube converts gamma radiation into an electrical signal. Electronic line processing, read by a counting device, or input to a data processing system. Radioimmunoassay counter The determination of gamma radionuclide activity in the analysis is an important analytical measuring instrument in clinical nuclear medicine work.

5 Metrological performance requirements

5.1 background For the first inspection, the background count rate of the newly manufactured release counter should be less than 80 counts/min.

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