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GB/T 14056.2-2011 English PDF

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GB/T 14056.2-2011: Evaluation of surface contamination -- Part 2: Tritium surface contamination
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 14056.2-2011	English	209	Add to Cart	3 days [Need to translate]	Evaluation of surface contamination -- Part 2: Tritium surface contamination	Valid	GB/T 14056.2-2011

PDF similar to GB/T 14056.2-2011

Standard similar to GB/T 14056.2-2011

GB 39220 EJ/T 307 GB 18871 GB/T 44645 GB/T 14057.2 GB/T 14056.1

Basic data

Standard ID	GB/T 14056.2-2011 (GB/T14056.2-2011)
Description (Translated English)	Evaluation of surface contamination -- Part 2: Tritium surface contamination
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	F74
Classification of International Standard	13.280
Word Count Estimation	9,984
Date of Issue	2011-06-16
Date of Implementation	2011-12-01
Older Standard (superseded by this standard)	GB/T 15222-1994
Quoted Standard	GB 18871
Adopted Standard	ISO 7503-2-1988, MOD
Regulation (derived from)	Announcement of Newly Approved National Standards No. 9 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 the tritium surface contamination measuring methods and procedures. This section applies to equipment, facilities, containers and sealed sources of radioactive material surface nitrogen surface contamination. This section does not apply to the skin and clothes Determination of tritium surface contamination.

GB/T 14056.2-2011: Evaluation of surface contamination -- Part 2: Tritium surface contamination

---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.
Evaluation of surface contamination.Part 2. Tritium surface contamination ICS 13.280 F74 National Standards of People's Republic of China Replacing GB/T 15222-1994 Determination of surface contamination Part 2. Tritium surface contamination Part 2. Tritiumsurfacecontamination (ISO 7503-2. 1988, MOD) Issued on. 2011-06-16 2011-12-01 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 Method 4 Determination of surface contamination 2 Record 5 Pollution Measurement 4 Reference 5

Foreword

GB/T 14056 "Determination of surface contamination" includes the following three parts. --- Part 1. β emitters (Eβmax > 0.15MeV) and α emitters; --- Part 2. Tritium surface contamination; --- Part 3. Isomeric transition and electron capture emitters, low energy β emitters (Eβmax < 0.15MeV). This section is GB/T Part of 214,056. This section uses redrafted Law Amendment uses ISO 7503-2. 1988 "Determination of surface contamination - Part 2. Tritium surface contamination." This part of ISO 7503-2. 1988 technical differences and their reasons are as follows. --- Increase cited GB 18871 (see 4.2.2), which is suited to China's national conditions. This Part replaces GB/T 15222-1994 "Determination of surface contamination - Part 2. Tritium surface contamination." Section compared with the GB/T 15222-1994 The main changes are as follows. a) in accordance with existing national standards for the preparation of the rules for writing the format has been modified; b) provision for minority representation were revised and improved; c) For ease of use, the GB/T 15222-1994 and GB/T 14056-1993 integration as part of a standard two. This part is proposed by the China National Nuclear Corporation. This part of the National Nuclear Energy Standardization Technical Committee (SAC/TC58) centralized. Drafting this Part. Nuclear Industry Standardization Institute, China Institute for Radiation Protection. The main drafters of this section. Chen Huili, Zhang Yansheng. This part of the standard replaces the previous editions are. --- GB/T 15222-1994. Determination of surface contamination Part 2. Tritium surface contamination

1 Scope

This section provides measurement methods and procedures for tritium surface contamination. This section applies to tritium surface equipment, facilities, and sealed sources of radioactive material container surface contamination measurement. This section does not apply to the determination of the skin and clothing tritium surface contamination.

2 Normative references

The following documents contain provisions which, through reference GB/T 14056 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB 18871 ionizing radiation protection and safety of radiation sources basic standards

3 Terms and Definitions

The following terms and definitions apply to this section. 3.1 Tritium surface contamination tritiumsurfacecontamination Attached to the surface of the total activity of tritium is absorbed into the surface and inside. 3.2 Tritium surface contamination can be directly measured directlymeasurabletritiumsurfacecontamination It can be directly measured tritium surface contamination. 3.3 Removable tritium surface contamination 1) removabletritiumsurfacecontamination 2) can be removed under normal operating conditions or transfer of tritium surface contamination. 1) In some external chemical factors (e.g., humidity,) corrosion and physical factors (e.g., ambient air pressure or temperature changes, vibration, shock, expansion, contraction) of Under the influence of or as a result of the proliferation of all tritium contamination may be converted into a decontamination; tritium surface contamination may be volatile or contain volatile portion Points, so that they may become volatile contamination can be removed under normal conditions, which should make the appropriate estimates. 2) "normal operating conditions" means that in this condition, it is possible to remove surface contamination is limited to the maximum intensity of the mechanical action between the body and the surface normal, non-breaking Non-destructive having contacts between the device and the surface of the component bad sexual contact or person operating a similar strength. Single wipe not usually go completely removed In addition to pollution. 3.4 Basis radioactivity activityperunitarea Tritium contamination present on the surface of the ratio of the surface area of the order Bq/cm2 representation. 3.5 Tritium surface contamination can be removed indirectly measured indirectevaluationofremovabletritiumsurfacecontamination Wipe the sample determination use removable tritium surface contamination activity.

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