GB/T 11682-2008 English PDF

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GB/T 11682-2008: Low background alpha and/or beta measuring instruments
Status: Valid

GB/T 11682: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 11682-2008	279	Add to Cart	3 days	Low background alpha and/or beta measuring instruments	Valid
GB/T 11682-1989	479	Add to Cart	4 days	Low background alpha measuring instrument	Obsolete

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Basic data

Standard ID: GB/T 11682-2008 (GB/T11682-2008)
Description (Translated English): Low background alpha and/or beta measuring instruments
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: F84
Classification of International Standard: 13.280
Word Count Estimation: 12,120
Date of Issue: 2008-07-02
Date of Implementation: 2009-04-01
Older Standard (superseded by this standard): GB/T 11682-1989
Quoted Standard: GB/T 4078; GB/T 8993-1998; GB/T 10257-2001; GB/T 17799.1-1999; GB/T 19661.1-2005; GB/T 19661.2
Regulation (derived from): Announcement of Newly Approved National Standards No. 11 of 2008 (No. 124 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the low background �� and/or �� meter technical requirements, test methods and inspection rules. This standard is suitable for measuring weak ��, �� radioactivity or the emissivity of the instrument, but also for the multi-purpose measuring instrument weak �� or �� radioactive section. This standard does not apply to measuring a or �� spectrum types of instruments.

GB/T 11682-2008: Low background alpha and/or beta measuring instruments

---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.
Low background alpha and/or beta measuring instruments ICS 13.280 F84 National Standards of People's Republic of China Replacing GB/T 11682-1989 Low background α and/or β measuring instrument Posted 2008-07-02 2009-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 11682-1989 "Low background α meter." This standard and GB/T 11682-1989, compared amended as follows. --- Standard name was changed to "low background α and/or β measuring instrument"; --- Increase in the content of measuring low background β; --- "Normative references" added the standard reference; --- "Terms and Definitions" added "cross-ratio" of the content; --- Increase mutual interference index α and β, that is, cross track than the target; --- Increased requirements and test methods for electromagnetic compatibility of the instrument; --- Increased the instrument software General requirements; --- Remove the "Table 1 instrument rating" Technical indicators background stability; --- Remove the "Table 2 changes affect the amount of projects and requirements" technical requirements change limits and the background count rate. Appendix A of this standard is a normative appendix. The standard proposed by China National Nuclear Corporation. This standard by the National Nuclear Instrument Standardization Technical Committee (SAC/TC30) centralized. This standard was drafted. nuclear (Beijing) Nuclear Instrument Factory. The main drafters of this standard. Yangbin Hua, CCA students, Wubing Lin. This standard replaces the standards previously issued as follows. --- GB/T 11682-1989. Low background α and/or β measuring instrument

1 Scope

This standard specifies the technical requirements, test methods and inspection rules for low background α and/or β measuring instrument. This standard applies to the measurement of weak α, β radioactivity or instrument surface emissivity, but also for multi-purpose instrument for measuring weak α or β Radioactive portion. This standard does not apply to measuring α or β spectrum types of instruments.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 4078 radioactivity measurement sample tray, bottles and test tubes of dimensions GB/T 8993-1998 nuclear instruments - Environmental conditions and testing procedures GB/T 10257-2001 nuclear instruments and nuclear radiation detectors Quality inspection rule GB/T 17799.1-1999 Electromagnetic compatibility - Generic standards for residential, commercial and light industrial environment - Immunity GB/T 19661.1-2005 nuclear equipment and systems - Safety requirements - Part 1. General requirements GB/T 19661.2 nuclear equipment and systems - Safety requirements - Part 2. radiation protection requirements

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Due to the non-measured physical quantity signal. 3.2 Instrument under normal operating conditions, the sample tray without sources, the instrument indicated value. 3.3 No external radioactive but by the same sample of material, according to the normal procedure of making planar samples tested. 3.4 Instrument under normal operating conditions, the measured value indicating a blank sample. 3.5 Without the presence of the test sample, measuring the inherent count means. These counts from cosmic rays, radioactivity in the environment Substances and radioactive contamination of the detector itself. 3.6 The background count per unit time. ......

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