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GB/T 30738-2014 English PDF

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US$399.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 30738-2014: Determination of radionuclide in marine sediment -- Gamma spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 30738-2014	399	Add to Cart	3 days	Determination of radionuclide in marine sediment -- Gamma spectrometry	Valid

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Basic data

Standard ID: GB/T 30738-2014 (GB/T30738-2014)
Description (Translated English): Determination of radionuclide in marine sediment -- Gamma spectrometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Z17
Classification of International Standard: 07.060; 13.060
Word Count Estimation: 17,178
Date of Issue: 6/9/2014
Date of Implementation: 10/1/2014
Quoted Standard: GB/T 12763.8-2007; GB/T 16145-1995; GB 17378.3-2007
Regulation (derived from): National Standards Bulletin No. 11 of 2014
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 use of high-purity germanium [HPGe] �� spectrometer marine sediments natural or artificial �� conventional method of measuring radionuclide activity. This Standard applies to the determination of activity above the laboratory det

GB/T 30738-2014: Determination of radionuclide in marine sediment -- Gamma spectrometry

---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 radionuclide in marine sediment. Gamma spectrometry ICS 07.060; 13.060 Z17 National Standards of People's Republic of China Determination of radionuclides in marine sediments γ spectrometry Issued on. 2014-06-09 2014-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Summary of Method 2 Preparation 5 standard calibration source 2 6 Equipment 2 7 Sampling and sample preparation 3 8 assay procedure 4 Quality assurance and control 9 8 8 10 test reports The detection efficiency curve equation in Appendix A (normative) different geometrical height of the sample 10 Appendix B (Informative Appendix) γ Spectrometry detection limit of 11 Annex C (informative) Determination of radionuclides in marine sediments record sheet format 12 References 13

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard by the National Standardization Technical Commission for Oceanography (SAC/TC283) centralized. This standard was drafted. South China Sea Environmental Monitoring Center, State Oceanic Administration, State Oceanic Administration, Third Institute of Oceanography. The main drafters of this standard. Li Dongmei, doors Wu, Zhou Peng, Cai Syria, Chen Jiahui, Zhao Li, Wang Hua, Tianxiu Lei, Liang Qian Lin, Zheng far, the forest ends, Huang Chuguang, Wujin Xiao Fang HTC, Wu Lingling, Zhang standard, home inspection Zhen. Determination of radionuclides in marine sediments γ spectrometry Warning --- personnel should use this standard regular laboratory work experience. This standard does not point out all possible security asked question. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.

1 Scope

This standard specifies the use of high-purity germanium [HPGe] γ spectrometer measured in marine sediment natural or artificial radionuclide γ activity routine method. This standard applies to the determination of the laboratory activity above the detection limit, and each nuclide γ characteristic lines can distinguish open marine sediments sample.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 12763.8-2007 oceanographic survey - Part 8. Marine Geology Geophysical Survey GB/T 16145-1995 biological sample γ spectrum analysis of radionuclides GB 17378.3-2007 marine monitoring Part 3. Sample collection, storage and transportation

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Background background In the γ spectrum, in addition to the sample count, other factors, such as cosmic rays, radioactive contamination, electromagnetic interference generated in the spectrum count. 3.2 Background count rate backgroundcountrate In the γ spectrum in addition to the radioactive sample, other factors count rate. [GB 11743-1989, the definition 2.3] 3.3 Detection efficiency detectionefficiency Under certain conditions detected, and the number of particles measured in the same time interval within the radiation source to the total number of species on the particle detector Ratio. [GB 11743-1989, the definition 2.5] 3.4 Detection limit lowlimitofdetection At a given confidence level spectrometer can detect the lowest activity. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 30738-2014_English be delivered?

Answer: Upon your order, we will start to translate GB/T 30738-2014_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 30738-2014_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 30738-2014_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.