Standard No.:	GB/T 14056.1-2008
English Name:	Evaluation of Surface Contamination - Part 1: Beta-emitters (Maximum Beta Energy Greater Than 0.15 MeV) and Alpha Emitters
Chinese Name:	表面污染测定 第1部分：β发射体（Eβmax＞0.15 MeV）和α发射体
Chinese Classification:	F74    Radiation protection detection and evaluation
Professional Classification:	GB    National Standard
Issued by:	AQSIQ; SAC
Issued on:	2008-07-02
Implemented on:	2009-4-1
Status:	valid
Superseding:	GB/T 14056-1993 Evaluation of surface contamination－Part 1:Beta-emitters(maximum beta energy greater than 0.15MeV) and alpha emitters
Language:	English
File Format:	PDF
Word Count:	6500 words
Price(USD):	160.00
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The evaluation methods of surface contamination for beta-emitters (maximum beta energy greater than 0.15 MeV) and alpha-emitters are specified in this Part of GB/T 1405.

This Part is applicable to the evaluation of surface contamination (represented by activity per unit area) of devices, facilities, containers of radioactive materials and sealed sources.

This Part is limited to the beta-emitters and alpha-emitters in accordance with the following requirements:

a) The particle generation rates of beta particles with monoenergetic electrons are approximately 100 particles every 100 decays.

b) The particle generation rates of alpha particles are approximate 100 particles every 100 decays.

The beta-emitters are detailed in Table A.3 of Annex A.

This Part is not applicable to the contamination evaluation of skins and work clothes.