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GB/T 28540-2012 English PDF

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US$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 28540-2012: Estimating method of radon-222 emanation rate from uranium tailings
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 28540-2012	209	Add to Cart	3 days	Estimating method of radon-222 emanation rate from uranium tailings	Valid

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Basic data

Standard ID: GB/T 28540-2012 (GB/T28540-2012)
Description (Translated English): Estimating method of radon-222 emanation rate from uranium tailings
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: F73
Classification of International Standard: 13.280
Word Count Estimation: 9,927
Quoted Standard: GB 11743-1989; GB/T 50123-1999; EJ/T 1117-2000; EJ/T 1128-2001; NY/T 1121.3-2006; NY/T 1121.4-2006; HJ/T 61-2001
Regulation (derived from): National Standards Bulletin No. 13 of 2012
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 specific activity based on radium, radon-222 emanation coefficient and diffusion coefficient, tailings (residue) of dry density for estimation of uranium tailings (residue) -222 radon exhalation rate method. This standard appli

GB/T 28540-2012: Estimating method of radon-222 emanation rate from uranium tailings

---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.
ICS13.280 F73 National Standards of People's Republic of China Uranium tailings (residue) of radon-222 exhalation rate estimation methods Issued on. 2012-11-01 2012-06-29 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 Theory 4 uranium tailings (residue) surface radon exhalation rate calculation 2 5 related parameter determination method 2

Foreword

This standard rule according to GB/T 1.1-2009 given draft. The standard proposed by China National Nuclear Corporation. This standard by the National Standardization Technical Committee on Nuclear Energy (SAC/TC58) centralized. This standard was drafted. Nuclear Industry Beijing Research Institute of Chemical Engineering and Metallurgy. The main drafters of this standard. Lixian Jie, Wang Welch. Uranium tailings (residue) of radon-222 exhalation rate estimation methods

1 Scope

This standard specifies the estimates based on the specific activity of radium, radon-222 and the diffusion coefficient of emanation coefficient, tailings (residue) of dry density and other parameters Uranium Tailings Mine (slag) radon-222 exhalation rate method. This standard applies to estimate uranium tailings (residue) library average radon exhalation rate.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article Member. For undated references, the latest edition (including any amendments) applies to this document. GB 11743-1989 radionuclides in soil γ spectrometric method GB/T 50123-1999 soil test method standards Radiochemical analysis - 226 EJ/T1117-2000 soil radium EJ/T1128-2001 uranium mining and milling waste rock, tailings soil cover thickness and reduce the radon exhalation rate calculation method Part 3 NY/T1121.3-2006 Soil Testing. Determination of mechanical composition of soil Determination of soil capacity. NY/T1121.4-2006 soil testing - Part 4 HJ/T61-2001 environmental radiation monitoring technical specifications

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Tailings (residue) tailings Or solid-liquid mixture of solid waste generated in the extraction of uranium ore processing waste, including tailings and heap leach hydrometallurgical tailings. Hydrometallurgical tailings hydrometallurgical plant by means breaking grinding the ore to extract useful metal waste generated in the process; Heap leaching tailings heap leaching refers to the process of extracting useful metal waste generated by ore. 3.2 Tailings (residue) library tailingsimpoundment Storage or stacking hydrometallurgical plants discharge the ore tailings slurry and sludge (dry tailings or slag) dedicated facilities, dams around the cut is made, the library It has drainage (flood) structure to exclude library tailings clarified water or storm flooding. 3.3 Radon exhalation rate radonemanationrate Unit time interval through the precipitation of radon per unit area interface, in units of becquerels per square meter per second (Bq/(m2 · s)). 3.4 Ra-226 specific activity of Ra-226specificactivity Unit mass of substance radium-226 radioactivity in units of becquerels per kilogram (Bq/kg). 3.5 Tailings dry density tailingsdrydensity No tailings pore water density when said dry density, refers to the unit volume of tailings in the dry mass reaches a constant weight after kilo Grams per cubic meter (kg/m3). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 28540-2012_English be delivered?

Answer: Upon your order, we will start to translate GB/T 28540-2012_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 28540-2012_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 28540-2012_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.