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GB/T 11927-2025 English PDF

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US$279.00 · In stock
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GB/T 11927-2025: Determination of density and volume fraction of open porosity in uranium dioxide pellets - Penetration immersion method
Status: Valid

GB/T 11927: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 11927-2025	279	Add to Cart	3 days	Determination of density and volume fraction of open porosity in uranium dioxide pellets - Penetration immersion method	Valid
GB/T 11927-1989	249	Add to Cart	3 days	Uranium dioxide pellets. Determination of density and amount of open porosity. Penetration immersion method

Basic data

Standard ID: GB/T 11927-2025 (GB/T11927-2025)
Description (Translated English): Determination of density and volume fraction of open porosity in uranium dioxide pellets - Penetration immersion method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: F46
Classification of International Standard: 27.120
Word Count Estimation: 14,155
Date of Issue: 2025-10-05
Date of Implementation: 2025-10-05
Older Standard (superseded by this standard): GB/T 11927-1989
Issuing agency(ies): State Administration for Market Regulation; Standardization Administration of China

GB/T 11927-2025: Determination of density and volume fraction of open porosity in uranium dioxide pellets - Penetration immersion method

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT11927-2025
ICS 27.120 CCSF46 National Standards of the People's Republic of China Replaces GB/T 11927-1989 Determination of uranium dioxide pellet density and open porosity Liquid impregnation method Published on 2025-10-05 Implemented on October 5, 2025 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Preface III 1.Scope 1 2 Normative References 1 3.Terms and Definitions 1 4.Method Principles 1 5.Reagents and Materials 1 6.Instruments and Equipment 1 7 Samples 1 8.Experimental Procedure 2 9.Experimental Data Processing 2 10 Precision 3 11 Records 3 Appendix A (Informative) Schematic Diagram of Experimental Apparatus 4 Appendix B (Informative) Density of Water at Different Temperatures 6 References 7

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents". Drafting. This document supersedes GB/T 11927-1989, "Determination of Density and Open Porosity of Uranium Dioxide Pellets—Liquid Immersion Method". Compared with GB/T 11927-1989, apart from structural adjustments and editorial changes, the main technical changes are as follows. ---The boiling water method has been removed (see 5.1 in the 1989 edition); ---The impregnation liquid has been changed (see 5.1, 3.1 of the 1989 edition); ---The content related to closed porosity calculation has been deleted (see Chapter 6 of the 1989 edition); ---A new chapter on "Samples" has been added (see Chapter 7); ---The experimental procedures have been modified (see Chapter 8, 5.2 of the 1989 edition); ---The drying conditions have been changed (see 8.1, 5.1.1 of the 1989 edition); ---The vacuum parameter has been changed (see 8.2, 5.2.2.1 of the 1989 version); ---The measured density was changed to bulk density (see 9.1, Chapter 6 of the 1989 edition); ---A new chapter on "Records" has been added (see Chapter 11). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed and is under the jurisdiction of the National Nuclear Energy Standardization Technical Committee (SAC/TC58). This document was drafted by. China Nuclear Power Research and Design Institute, China Nuclear Jianzhong Nuclear Fuel Element Co., Ltd., China Nuclear 404 Co., Ltd., and other relevant organizations. Industrial Standardization Institute. The main drafters of this document are. Wang Guohua, Tang Wenlei, Yang Chaoping, Liu Jianfeng, Yu Jiamin, Zheng Na, Li Yi, Qin Yi, Guo Jinxuan, Ning Wei, and Jian Min. Zhao Feng, Deng Shiyi, Huang Hai, Li Yige, Han Jinhui, Zhao Suyu. The release history of this document and the document it replaces is as follows. ---First published in 1989 as GB/T 11927-1989; ---This is the first revision. Determination of uranium dioxide pellet density and open porosity Liquid impregnation method 1.Scope This document describes the reagents, materials, instruments, and samples used in the liquid immersion method for determining the bulk density and open porosity of uranium dioxide pellets. The content includes the product, test procedures, test data processing, precision and recording. This document applies to the determination of bulk density and open porosity of uranium dioxide pellets. It also applies to other nuclear fuel sintered bodies, such as UO2-PuO2 cores. For reference use of blocks and UO2-Gd2O3 core blocks.

2 Normative references

This document has no normative references. 3.Terms and Definitions This document does not contain any terms or definitions that need to be defined. 4.Method Principles The mass of the dried pellet in air was determined using a balance. Air was expelled from the openings on the pellet surface by evacuation, and then impregnation was added. The impregnating liquid was applied to fill the opening. The mass of the core block in the impregnating liquid and in air were measured separately after the opening was filled with the impregnating liquid. (Based on Aki...) Mead's Law is used to calculate the bulk density and open porosity of a core. 5.Reagents and Materials 5.1 Impregnation solution. distilled water or deionized water, or analytical grade anhydrous ethanol, polyethylene glycol, and carbon tetrachloride, etc. 5.2 Linenia or other similar fabrics without lint. 6.Instruments and Equipment 6.1 Density measuring balance. graduation value 0.1 mg, including density measuring kit and glass container, structural schematic diagram is shown in Figure A.1 of Appendix A. 6.2 Drying oven. The usable temperature is not lower than 150℃, and the temperature control accuracy is ±5℃. 6.3 Dryer. 6.4 Vacuum device. vacuum degree better than 10Pa, accuracy ±2Pa, structural schematic diagram is shown in Figure A.2. 6.5 Thermometer. Scale division 0.1℃.

7 samples

The sample should be a uranium dioxide pellet with a volume not less than 0.4 cm³. If the sample volume is less than 0.4 cm³, several samples can be combined together. ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 11927-2025_English be delivered?

Answer: Upon your order, we will start to translate GB/T 11927-2025_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 11927-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 11927-2025_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.

Question 5: Should I purchase the latest version GB/T 11927-2025?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 11927-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.