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SN/T 4566-2016 English PDF

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SN/T 4566-2016: Determination of natural radionuclides in zircon--Gamma spectrometry method
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Standard similar to SN/T 4566-2016

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Basic data

Standard ID SN/T 4566-2016 (SN/T4566-2016)
Description (Translated English) Determination of natural radionuclides in zircon--Gamma spectrometry method
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard Q40
Word Count Estimation 10,114
Date of Issue 2016-08-23
Date of Implementation 2017-03-01
Regulation (derived from) State-Quality-Inspection-Accredidation (2016) No.438
Issuing agency(ies) General Administration of Customs

SN/T 4566-2016: Determination of natural radionuclides in zircon--Gamma spectrometry method

---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.
Determination of natural radionuclides in zircon--Gamma spectrometry method China's entry-exit inspection and quarantine industry standards Determination of natural radionuclides in zircon sand Gamma spectroscopy Published on.2016-08-23 2017-03-01 Implementation China The State Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed and managed by the National Certification and Accreditation Regulatory Commission. This standard was drafted by. Xiamen Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China and Yantai Entry-Exit Inspection and Quarantine Bureau, Xinjiang Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China and Hunan Entry-Exit Inspection and Quarantine Bureau The main drafters of this standard. Cai Jijie, Lin Bifen, Shangdi, Xiao Weijian, Ma Yi, Chen Yongfei, He Peng, Wan Yongliang. Determination of natural radionuclides in zircon sand Gamma spectroscopy

1 Scope

This standard specifies the gamma spectrometer determination of the specific activity of natural radionuclides 238U, 226Ra, 232Th, and 40K in zircon sand and its products. method. This standard applies to the determination of the specific activity of natural radionuclides in zircon sand and its products.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB 6566-2010 Radioactive Nuclides for Building Materials GB/T 11743-2013 Radioactive nuclides in soil by gamma spectrometry GB/T 16145-1995 γ-spectrum analysis method for radionuclides in biological samples

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Zircon zircon Zircon sand is a kind of mineral mainly composed of zirconium silicate (ZrSiO4). 3.2 Detection efficiency efficiency Under certain detection conditions, the ratio of the number of particles measured by the detector to the number of particles emitted by the radiation source in the same time interval. 3.3 Heavy peak overlappingpeak The characteristic peaks of different nuclei or different characteristic peaks of the same nuclide are indistinguishable in the gamma spectrum due to the very close energies. Energy peaks. 3.4 Detection limit lowerlimitofdetection The lowest specific activity that the spectrometer can detect with a given level of confidence. 3.5 Radioactivity specific activity The ratio of a radionuclide activity in a substance to the mass of that substance.

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