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Basic dataStandard ID: GB 15208.1-2018 (GB15208.1-2018)Description (Translated English): Micro-dose X-ray security inspection system -- Part 1: General technical requirements Sector / Industry: National Standard Classification of Chinese Standard: A91 Classification of International Standard: 13.310 Word Count Estimation: 22,234 Date of Issue: 2018-11-19 Date of Implementation: 2019-12-01 Older Standard (superseded by this standard): GB 15208.1-2005 Regulation (derived from): National Standard Announcement No. 15 of 2018 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB 15208.1-2018: Micro-dose X-ray security inspection system -- Part 1: General technical requirements---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. Micro-dose X-ray security inspection system--Part 1. General technical requirements ICS 13.310 A91 National Standards of People's Republic of China Replace GB 15208.1-2005 Micro-dose X-ray safety inspection equipment Part 1. General technical requirements Part 1. Generaltechnicalrequirements Published on.2018-11-19 2019-12-01 implementation State market supervision and administration China National Standardization Administration issued ContentForeword III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Equipment Category 4 5 General technical requirements 4 6 Test method 9 7 Inspection rules 12 8 Packaging, labeling, storage and transportation 13 9 Random technical documents 14 Appendix A (Normative Appendix) Single Test Dose Test Method 15 Appendix B (Normative Appendix) Test Method for Peripheral Equivalent Rate 16 Reference 17ForewordAll technical content in this section is mandatory. GB 15208 "Micro Dose X-ray Safety Inspection Equipment" is divided into the following five parts. --- Part 1. General technical requirements; --- Part 2. Transmissive bag security inspection equipment; --- Part 3. Transmissive cargo safety inspection equipment; --- Part 4. Human body safety inspection equipment; --- Part 5. Backscattering items safety inspection equipment. This part is the first part of GB 15208. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB 15208.1-2005 "Micro-dose X-ray safety inspection equipment Part 1. General technical requirements", and The main technical changes compared with GB 15208.1-2005 are as follows. --- Added 8 terms. equivalent atomic number, ambient dose equivalent rate, transmission X-ray safety inspection equipment, backscatter X Radiation safety inspection equipment, control area, supervision area, open micro-dose X-ray safety inspection equipment, closed micro-dose X-ray Line safety inspection equipment (see 3.1, 3.8, 3.12, 3.13, 3.16, 3.17, 3.18, 3.19); --- Revised the names of the five terms (see 3.2, 3.3, 3.4, 3.14, 3.15, 3.11, 3.12, 3.13, 3.22, 3.23 of the.2005 edition); --- Revised the definition of three terms. single-check dose, micro-dose X-ray safety inspection equipment, safety interlock (see 3.7, 3.11, 3.20, 3.17, 3.21, 3.24 of the.2005 edition); --- Removed 11 terms (see 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10, 3.16 in.2005); --- Added equipment classification (see Chapter 4); --- Removed performance indicator requirements (see version 4.1 of.2005); --- Revised radiation and environmental safety indicators (see 5.2,.2005 edition 4.2); ---Modified working environment conditions (see 5.3.1, 4.3.1 of the.2005 edition); ---Modified equipment safety requirements [see 5.4.1e), 5.4.1g),.2005 version 4.4.1e), 4.4.1g)]; ---Modified mechanical structure (see 5.5,.2005 version 4.5); ---Modified electromagnetic compatibility requirements (see 5.6, 4.6 of the.2005 edition); ---Modified electrical safety (see 5.7, 5.8, 5.9, 5.10, 4.7 of the.2005 edition); ---Modified environmental adaptability (see 5.11, 4.8 of the.2005 edition); --- Added functional requirements (see 5.12); --- Modified the main instruments and tools for testing (see 6.2, 5.2 of.2005 edition); --- Revised radiation and environmental indicators test (see 6.3, 5.5 of.2005); --- Modified the power supply scope experiment (see 6.4,.2005 version 5.7); ---Modified security performance test (see 6.5, 5.6 of.2005 edition); --- Removed the performance indicator test (see 5.4 of.2005 edition); --- Revised the visual inspection (see 6.6.1, 5.3.1 of the.2005 edition); --- Modified the electromagnetic compatibility test (see 6.7,.2005 version 5.10); --- Revised the electrical safety test (see 6.8, 6.9, 6.10, 6.11, 5.9 of the.2005 edition); ---Modified environmental adaptability test (see 6.12,.2005 edition of 5.8); --- Added functional requirements testing (see 6.13); --- Removed the evaluation of the test image (see Chapter 6 of the.2005 edition); --- Added inspection rules (see Chapter 7); ---Modified packaging requirements [see 8.1a),.2005 edition of 8.1a)]; --- Revised the marking requirements (see 8.2, 8.2 of the.2005 edition); --- Revised the normative appendix (see Appendix A, Appendix B, Appendix A, Appendix B of the.2005 edition); --- Deleted the informative appendix (see Appendix C of the.2005 edition). This part is proposed and managed by the Ministry of Public Security of the People's Republic of China. This section drafted by. the First Institute of the Ministry of Public Security, Beijing Zhongduan Anmin Analysis Technology Co., Ltd., China Civil Aviation Science and Technology Research Institute, Tongfang Weishi Technology Co., Ltd., National Security and Alarm System Product Quality Supervision and Inspection Center (Beijing), National Security Alarm System Product Quality Supervision and Inspection Center (Shanghai), Shanghai Gaojing Imaging Technology Co., Ltd. The main drafters of this section. Zhao Lei, Chen Xueliang, Chen Li, Li Yongqing, Zhao Yue, Zhang Wei, Tao Lei, Liu Caixia, Peng Ningxuan, Chen Yu, Luther, Lu Yang, Niu Yujie. The previous versions of the standards replaced by this section are. ---GB 15208-1994; ---GB 15208.1-2005. Micro-dose X-ray safety inspection equipment Part 1. General technical requirements1 ScopeThis part of GB 15208 specifies the classification, general technical requirements, test methods and inspection rules for micro-dose X-ray safety inspection equipment. Then, packaging, marking, storage and transportation, and random technical documents. This section applies to the design, manufacture, acceptance and use of various micro-dose X-ray safety inspection equipment. This section does not apply to computed tomography (CT), electron accelerators, and X-ray generating devices with energy greater than 500 keV. Radiation safety inspection equipment.2 Normative referencesThe following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 191-2008 packaging storage and transportation icon GB/T 2423.1-2008 Environmental testing of electric and electronic products - Part 2. Test methods Test A. Low temperature GB/T 2423.2-2008 Environmental testing of electrical and electronic products - Part 2. Test methods Test B. High temperature GB/T 2423.3-2016 Environmental testing - Part 2. Test method test Cab. constant damp heat test GB/T 2423.5-1995 Environmental testing for electric and electronic products - Part 2. Test methods Test Ea and guide. Impact GB/T 2423.10-2008 Environmental testing of electric and electronic products - Part 2. Test method test Fc. Vibration (sinusoidal) GB/T 4208-2017 enclosure protection grade (IP code) GB 4793.1-2007 Safety requirements for electrical equipment for measurement, control and laboratory - Part 1. General requirements GB/T 9254-2008 Radio disturbance limits and methods of measurement for information technology equipment GB/T 17626.2-2006 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test GB/T 17626.3-2016 Electromagnetic compatibility test and measurement technology RF electromagnetic field radiation immunity test GB/T 17626.4-2008 Electromagnetic compatibility test and measurement technology Electrical fast transient burst immunity test GB/T 17626.5-2008 Electromagnetic compatibility test and measurement technology Surge (impact) immunity test GB/T 17626.6-2008 Electromagnetic compatibility test and measurement technology Conducted disturbance immunity of RF field induction GB/T 17626.11-2008 Electromagnetic compatibility test and measurement techniques Immunity to voltage dips, short interruptions and voltage changes test GB/T 17799.1-2017 Electromagnetic compatibility common standards Immunity in residential, commercial and light industrial environments GB/T 17799.2-2003 Electromagnetic compatibility general standard immunity test in industrial environment GB/T 17799.3-2012 Common standards for electromagnetic compatibility, emissions in residential, commercial and light industrial environments GB/T 17799.4-2012 Electromagnetic compatibility general standard emission in industrial environment3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Equivalent atomic number Zeff An atomic number representing the theoretical element of a material property that has the same X-ray attenuation characteristics as this material. 3.2 Equivalent organic matter A substance with an equivalent atomic number below 10. 3.3 Equivalent inorganic effectiveinorganicmaterial A substance with an equivalent atomic number higher than 18. 3.4 Equivalent mixture effectivemixedmaterial A substance whose equivalent atomic number is between 10 and 18. 3.5 Wear impenetrable area impenetrablearea The intensity of X-ray penetration of the object to reach the X-ray detector is almost zero, and the device cannot recognize the basic structural features of the object under test. region. 3.6 Material uncertainty area undeterminedarea Although the ray can penetrate, it is impossible to identify the area of the material property of the object to be inspected. 3.7 Single dose doseoseperinspection The subject undergoes an examination to absorb the absorbed kinetic energy of the air. Note. The single-dose dose unit is Gy, 1Gy=1J/kg. 3.8 Peripheral dose equivalent rate ambientdoseequivalentrate H *(10) The quotient of dH *(10) and dt, where dH *(10) is the increment of the surrounding dose equivalent within the time interval dt. H *(10)= dH *(10) Dt Note. The International System of Units (SI) unit for the surrounding dose equivalent rate is [Watt] per second (Sv/s). The unit of the surrounding dose equivalent rate is [Watt] or its multiple Or the quotient of the score with the appropriate time unit (for example. mSv/h). [GB/T 4835.1-2012, definition 3.3] 3.9 Scatter scatterblock An object that scatters radiation to produce the worst radiation conditions. 3.10 X-ray security inspection equipment X-raysecurityinspectionsystem X-ray intensity distribution or energy spectrum distribution is measured by the interaction of X-rays with the object to be inspected, and an X-ray image of the object to be inspected is generated. An apparatus that recognizes the safety of the object to be inspected based on the information of the material to be inspected. 3.11 Micro-dose X-ray safety inspection equipment micro-doseX-raysecurityinspectionsystem A single inspection of X-ray safety inspection equipment with a dose less than or equal to 10 μGy. 3.12 Transmissive micro-dose X-ray safety inspection equipment transmissionmicro-doseX-raysecurityinspectionsystem Generating an X-ray image of the object to be inspected or providing a detected pair by measuring an X-ray intensity distribution or an energy spectrum distribution passing through the object to be inspected Like material information, a micro-dose X-ray safety inspection device that identifies the safety of the object to be inspected. 3.13 Backscatter micro-dose X-ray safety inspection equipment backscattermicro-doseX-raysecurityinspectionsystem Using the scattering effect of X-ray photons and matter interaction, collecting backscattered X-rays scattered by the object under test and generating a test Micro-dose X-ray safety inspection device for object images. 3.14 Single-energy spectrum micro-dose X-ray safety inspection equipment single-energymicro-doseX-raysecurityinspectionsystem Using X-ray interaction with the object to be inspected, measuring the intensity distribution of the X-ray and imaging the structural characteristics of the object to be inspected Micro-dose X-ray safety inspection equipment. 3.15 Multi-energy micro-dose X-ray security inspection system multi-energy micro-doseX-ray securityinspectionsystem According to the laws of different equivalent atomic numbers on the absorption characteristics of X-ray energy spectrum, the material properties of the object to be inspected are judged. A micro-dose X-ray safety inspection device that recognizes and images. 3.16 Control area controlledarea An area defined in a radiation workplace where special protective measures and safety measures are required or may be required, so that. a) control normal exposure or prevent contamination expansion under normal operating conditions; b) Prevent potential exposure or limit its extent. [GB 18871-2002, definition J5.5] 3.17 Supervised area supervisedarea Anyone who has not been identified as a control area, usually does not need to take special protective measures and safety measures, but must constantly check his occupational exposure conditions What area. [GB 18871-2002, definition J5.6] 3.18 Open micro-dose X-ray safety inspection equipment unshieldedmicro-doseX-raysecurityinspectionsystem Radiation protection devices for shielding, leaking rays, etc. generated during the inspection process are not installed, and it is necessary to delineate the supervision area or place it in compliance. Radiation protection requires micro-dose X-ray safety inspection equipment at the location. 3.19 Closed micro-dose X-ray safety inspection equipment shieldedmicro-doseX-raysecurityinspectionsystem Micro-dose X-ray safety inspection with radiation protection devices for shielding scattering, leaking rays, etc. generated during the inspection process device. 3.20 Safety interlocking device safetyinterlock A device that protects the X-ray equipment from working safely and prevents X-rays from being emitted under abnormal conditions. 3.21 Emergency stop switch emergencystopswitch In an emergency, the components of the power supply of the X-ray generating device and the conveying device can be cut off immediately. 3.22 X-ray generating device X-raygeneratingdevice Generate and control a combination of all components of the X-ray emission. Note. Usually consists of an X-ray tube, a high voltage generator, a controller, and a cooling system. 3.23 X-ray detector X-raydetector A sensor that detects (measures) X-rays and converts X-ray intensities into electrical signals that can be processed. 3.24 Test body testblock A test object for testing and evaluating X-ray image performance indicators. 3.25 Test card testobject A test object used to test and evaluate an indicator of X-ray images.4 Equipment classification4.1 Micro-dose X-ray safety inspection equipment (hereinafter referred to as equipment) is divided into. according to technical characteristics. a) transmissive equipment; b) backscattering equipment; c) Transmissive, backscatter combined equipment. 4.2 Equipment is divided according to material resolution. a) single energy spectrum equipment; b) Multi-spectral spectrum equipment. 4.3 Equipment is classified according to the type of protection. a) open equipment; b) Closed equipment. 4.4 The device is divided into the types of objects to be inspected. a) line-package equipment; b) cargo equipment; c) Human body equipment.5 General technical requirements5.1 Overview For combined equipment (eg transmission, backscatter combination), all technical requirements of the respective technology type should be met. 5.2 Radiation and environmental safety indicators 5.2.1 Single dose check A single inspection dose of a device with only one X-ray generating device should be less than or equal to 5 μGy, and there are multiple X-ray generating devices. A single check dose should be less than or equal to 10μGy, a device with multiple inspection channels, and a single dose of any one of the channels Should meet the above requirements. 5.2.2 Peripheral dose equivalent rate When the equipment is working normally, the enclosed equipment is at a distance of 0.1m from any accessible surface of the equipment (including the inlet and outlet of the equipment). The volume equivalent rate should be less than or equal to 1μSv/h; open equipment needs to be delineated or placed in compliance with radiation protection requirements, outside the supervision area The surrounding dose equivalent rate should be less than or equal to 2.5 μSv/h; the surrounding dose equivalent rate of the worker position should be less than or equal to 0.5 μSv/h. 5.2.3 Equipment noise The equipment noise should be less than or equal to 65dB (A) at any point 1m away from the outer surface of the equipment during normal operation. 5.3 Operating environment 5.3.1 Working environment conditions Ambient temperature range. 5 ° C ~ 40 ° C. Relative humidity range. 5%~85%. Atmospheric pressure range. 70kPa~106kPa. 5.3.2 Power Adaptability The power supply voltage shall be within 10%-15% of the nominal voltage and the nominal frequency ±3Hz, and the equipment shall be able to operate normally. 5.4 Security performance 5.4.1 Equipment Safety Requirements are as follows. a) The equipment should have obvious system operation and ray emission display devices (indicators); b) The equipment should be equipped with an emergency stop switch at a location accessible to the operator. If an emergency occurs, the equipment X can be cut off immediately. The power supply of the radiation generating device and the conveying device; the emergency stop switch should use a red switch with a yellow bottom; c) The equipment shall be equipped with a power overcurrent protection device of appropriate rating to prevent overuse of internal components or other accidents. Current may cause a fire hazard; d) The equipment shall be provided with a key switch and a secondary power start switch, and the key switch shall be able to clearly identify the "on" and "off" positions; e) A safety protection interlock shall be fitted on the detachable radiation protection component of the X-ray emission area. Once the interlock is disconnected, The power supply of the X-ray generating device of the device can be cut off immediately, and the X-ray should stop emitting immediately; f) The equipment should have an operator identification function; g) The equipment shall display the gray scale of the material uncertainty area and give obvious hints to the impervious area. 5.4.2 X-ray generating device safety Requirements are as follows. a) The X-ray generator shall be self-cooled within the equipment; b) X-ray generators using external circulation cooling systems should have temperature or pressure control when the temperature of the coolant (oil or water) exceeds When the specified value is exceeded or the circulating pressure is lower than the specified value, the X-ray emission can be automatically stopped; c) The X-ray generating device shall have an overvoltage and overcurrent protection function, which can automatically be used when its voltage or current exceeds the specified value of the product. Cutting off the high pressure; d) The X-ray generating device shall have a protective grounding wire. The color of the grounding wire shall be yellow-green, and the grounding resistance shall not exceed 0.1 Ω. 5.5 Mechanical structure 5.5.1 Appearance section Requirements are as follows. a) The design and operation procedures of the equipment shall be in accordance with the basic requirements of ergonomics and s......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 15208.1-2018_English be delivered?Answer: Upon your order, we will start to translate GB 15208.1-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB 15208.1-2018_English with my colleagues?Answer: Yes. 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