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GB/T 7023: Evolution and historical versions
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| GB/T 7023-2011 | English | 299 |
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Standard test method for leachability of low and intermediate level solidified radioactive waste forms
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GB/T 7023-2011
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| GB/T 7023-1986 | English | 279 |
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Long-term leach testing of solidified radioactive waste forms
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GB/T 7023-1986
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PDF similar to GB/T 7023-2011
Basic data
| Standard ID | GB/T 7023-2011 (GB/T7023-2011) |
| Description (Translated English) | Standard test method for leachability of low and intermediate level solidified radioactive waste forms |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | F70 |
| Classification of International Standard | 13.280 |
| Word Count Estimation | 13,190 |
| Date of Issue | 2011-12-30 |
| Date of Implementation | 2012-06-01 |
| Older Standard (superseded by this standard) | GB/T 7023-1986 |
| Quoted Standard | GB 14569.1; GB 14569.3 |
| Regulation (derived from) | Announcement of Newly Approved National Standards No. 23 of 2011 |
| 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 under laboratory conditions, low and intermediate level radioactive waste solidified leaching behavior detection test methods. |
GB/T 7023-2011: Standard test method for leachability of low and intermediate level solidified radioactive waste forms
---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.
Standard test method for leachability of low and intermediate level solidified radioactive waste forms
ICS 13.280
F70
National Standards of People's Republic of China
Replacing GB/T 7023-1986
Low and intermediate level radioactive waste cured standard leaching
experiment method
Issued on. 2011-12-30
2012-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 Test equipment and sample preparation 2
4.1 leachant 2
4.2 Leaching container 2
4.3 Sample Preparation 2
5 3 leaching tests
5.1 Sample Measurement 3
Leaching agent added 5.2 3
5.3 3 leaching temperature
5.4 Replacing the leaching agent 3
5.5 replacement cycle 3
5.6 Leaching deadline 4
5.7 Data Processing 4
6 Test Report 4
6.1 Test Sample 4
6.2 leaching agents and leachate 5
6.3 Leaching Procedure 5
6.4 Analysis 5
6.5 Leaching test results 5
Appendix A (informative) short-term leach method 6
Annex B (informative) leach test report 7
Foreword
This standard is based on GB/T 1.1-2009 "Standardization Guide Part 1. Standard structure and drafting" rule drafting.
This standard replaces GB 7023-1986 "solidified radioactive waste long-term leaching test." This revision compared with the previous version, the main change
It reads as follows.
--- Modify the standard name, the standard name was changed to "low and intermediate level radioactive waste cured standard leaching test methods";
--- Increased the preamble;
--- Increasing the normative references;
--- Increasing the terms and definitions;
--- Complement the main technical content standards, based on the original standard leaching test methods, the recommended short-term leaching test methods.
The reference to the standard ANSI/ANS-16.1-2003 (R2008) "with short-term leaching test procedures for measuring low-level radioactive waste form."
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. China Institute for Radiation Protection.
The main drafters of this standard. Guo Xiliang, Fan Zhiwen, Liu Zhaofeng, Yangwei Bing, Feng Tao sound, Valley Cunli.
This standard replaces the previous standard published case. GB/T 7023-1986.
Low and intermediate level radioactive waste cured standard leaching
experiment method
1 Scope
This standard specifies under laboratory conditions, low and intermediate level radioactive waste form (hereinafter referred to as waste cured body) leaching behavior detection
Test methods measured.
This standard applies to compare and evaluate the leach resistance of waste form under controlled laboratory conditions, specific uses include.
Comparative leaching test results a) for different types or different composition of waste form;
b) for different laboratory leaching test results of the same waste form alignments;
c) leaching test used to compare the results obtained with different curing process the waste form.
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 14569.1 low and intermediate level radioactive waste form performance cement cured body
GB 14569.3 low and intermediate level radioactive waste form performance requirements Bitumen solidified
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Leaching rate leachingrate
Rate of dissolution or erosion of the material, or by solid diffusion rate of release, it can be used to measure the rate of release of radionuclides, anti
Durability enantiomers waste form, in centimeters per day (cm/d).
3.2
Cumulative leaching fraction cumulativefractionleached
Within a specific cumulative leaching time, leaching unit of surface area on the cumulative share of nuclides in centimeters (cm).
3.3
The specific surface area specificsurfacearea
Volume of the sample divided by the total area of \u200b\u200bthe sample, in units per centimeter (cm-1).
3.4
Leaching agent leachant
Leaching tests for fresh liquid in contact with the waste form the sample, its components meet the requirements of 4.1.
3.5
Leachate leachate
After leaching test sample in contact with the waste form, in accordance with the leaching time Replace the solution contained in the solution to be analyzed discharge
Radionuclides or radionuclide tracers.
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