GB/T 13698-2015 English PDF

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GB/T 13698-2015: Determination of total hydrogen in uranium dioxide pellets
Status: Valid

GB/T 13698: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 13698-2015	239	Add to Cart	3 days	Determination of total hydrogen in uranium dioxide pellets	Valid
GB/T 13698-1992	199	Add to Cart	2 days	Uranium dioxide pellet--Determination of total hydrogen	Obsolete

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GB/T 10266   GB/T 13697   GB/T 13696   

Basic data

Standard ID: GB/T 13698-2015 (GB/T13698-2015)
Description (Translated English): Determination of total hydrogen in uranium dioxide pellets
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: F46
Classification of International Standard: 27.120.30
Word Count Estimation: 11,194
Date of Issue: 2015-07-03
Date of Implementation: 2016-02-01
Older Standard (superseded by this standard): GB/T 13698-1992
Regulation (derived from): National Standard Announcement 2015 No.22
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 method of uranium dioxide pellets - Determination of total hydrogen feed, reagents and materials, equipment, sample analysis step, the results of calculation and precision. This standard applies to the determination of uranium dioxide pellets total hydrogen measurement range of the mass fraction of hydrogen is 0.15 ��g/g ~ 20.00 ��g/g. When uranium dioxide pellets heating temperature exceeds 2 360 ��, carbon monoxide oxidizer consumption increased significantly. In ensuring the complete release of hydrogen case control the heating temperature does not exceed 2 360 �� can effectively reduce the consumption of carbon monoxide oxidizer.

GB/T 13698-2015: Determination of total hydrogen in uranium dioxide pellets

---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 total hydrogen in uranium dioxide pellets ICS 27.120.30 F46 National Standards of People's Republic of China Replacing GB/T 13698-1992 Determination of uranium dioxide pellets total hydrogen Issued on. 2015-07-03 2016-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 13698-1992 "uranium dioxide pellets - Determination of total hydrogen," compared with the GB/T 13698-1992 main technical Surgery changes are as follows. --- The "hydrogen integral time 120s" to "integration time is determined by the test"; --- Increased provisions recommendation sample heating temperature upper limit; --- Standardized precision representation method; --- Check the electrode increases the furnace temperature (refer to normative Annex A); --- Increasing the method of determining the integration time (see Information Appendix B). This standard by the National Standardization Technical Committee on Nuclear Energy (SAC/TC58) and focal points. This standard was drafted. China Jianzhong Nuclear Fuel Limited. The main drafters of this standard. meterial stop, Xu Jianping, Chen Changyou. This standard replaces the standards previously issued as follows. --- GB/T 13698-1992. Determination of uranium dioxide pellets total hydrogen

1 Scope

This standard specifies the method of uranium dioxide pellets - Determination of total hydrogen feed, reagents and materials, equipment, sample analysis step, the results Calculation and precision. This standard applies to the determination of uranium dioxide pellets total hydrogen measurement range of the mass fraction of hydrogen is 0.15μg/g ~ 20.00μg/g. Uranium dioxide pellets heating temperature exceeds 2360 ℃, the significant increase in the consumption of carbon monoxide oxidizer. Ensuring complete release of hydrogen Controlling the heating temperature of the case does not exceed 2360 ℃ can effectively reduce the consumption of carbon monoxide oxidizer.

2 Method summary

Uranium dioxide pellets sample was placed in a graphite crucible under an inert atmosphere heated to above 2100 ℃, release hydrogen. Remove the interference group After hours, the hydrogen separated from the column and then measured by a thermal conductivity detector.

3 Reagents and materials

3.1 argon, φ (Ar) ≥99.99%. 3.2 hydrogen, φ (H2) ≥99.99% hydrogen content or with a calibration gas. 3.3 Schutz reagent (carbon monoxide oxidizer), particle size 1mm ~ 2mm. 3.4 Ascarite, dried particles size 0.5mm ~ 0.8mm. 3.5 over anhydrous magnesium perchlorate, mass fraction of water of not more than 8%, particle size of 1.0mm ~ 1.6mm. 3.6 Standard substance hydrogen, hydrogen in steel standard material, substance or other equivalent standards. 3.7 tin sheet, chemically pure. 3.8 graphite crucible, match the hydrogen analyzer electrode furnace. 3.9 column, filled with 5A molecular sieves for hydrogen separation (R) is greater than 1.

4 Equipment

4.1 automatic hydrogen tester, including a temperature can reach 2400 ℃ or more electrodes furnace (check electrode furnace temperature see Appendix A), a A separate release of gas chromatography and chemical systems, a measurement of hydrogen thermal conductivity detector and a number of secondary purification systems. 4.2 Balance, dividing the value of 1mg.

5 Sample

The specimen shall be a complete piece of pellets, the surface meets the technical requirements for products, stored in a glass bottle. ......

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