This part of GB/T 14056 specifies the measurement range β Emitter (maximum β Energy greater than 0.15 MeV) and α The method of surface contamination of the emitter. This section is applicable to the surface pollution measurement of equipment, facilities, containers of radioactive substances, and sealed sources expressed in unit area radioactive activity. This section is only applicable to those who meet the following conditions β Emitter and α Emitter: a) β The particle production rate of particles plus single energy electrons is nearly 100 particles emitted every 100 decays; B) α The particle production rate of particles is nearly 100 particles emitted every 100 decays. β The emitter is detailed in Table A.3 in Appendix A. This section is not applicable to the contamination determination of skin and work clothes. 2 Normative References: The clauses in the following documents are referred to as clauses in this part of GB/T 14056. For dated reference documents, all subsequent amendments (excluding corrected content) or revisions do not apply to this section. However, parties to agreements based on this section are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this section. GB/T 5202 Radiation Protection Instruments α、 3 and a/ β （ β Pollution measuring and monitoring instruments with energy greater than 60 keV (GB/T 5202-2008, IEC 60325; 2002, IDT) GB/T 12128 as a reference source for calibrating surface pollution monitoring instruments β Emitter and α Emitter (GB/T 12128-1989, neq ISO 8769:1986) GB 18871 Basic Standard for Protection against Ionizing Radiation and Safety of Radiation Sources 3 Terms and Definitions The following terms and definitions apply to this part of GB/T14056. 3.1 Surface contamination Surface contamination with radioactive substances on the surface. 3.2 Fixed surface contamination refers to contamination that adheres to the surface in an untransferable manner under normal working conditions. Note: "Normal working conditions" assume that under these conditions, the maximum intensity of mechanical action that may cause surface pollution removal is limited to normal accidental contact between the human body and the surface (with or without protective clothing), or non-destructive contact between equipment components directly operated by humans and the surface with similar intensity. The strength of the wiping method should be consistent with these types of mechanical actions-
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China