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GB 15208.3-2018 English PDF

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GB 15208.3-2018: Micro-dose X-ray security inspection system -- Part 3: Transmission cargo security inspection system
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 15208.3-2018	599	Add to Cart	5 days	Micro-dose X-ray security inspection system -- Part 3: Transmission cargo security inspection system	Valid

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Basic data

Standard ID: GB 15208.3-2018 (GB15208.3-2018)
Description (Translated English): Micro-dose X-ray security inspection system -- Part 3: Transmission cargo security inspection system
Sector / Industry: National Standard
Classification of Chinese Standard: A91
Classification of International Standard: 13.310
Word Count Estimation: 30,371
Date of Issue: 2018-11-19
Date of Implementation: 2019-12-01
Regulation (derived from): National Standard Announcement No. 15 of 2018
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB 15208.3-2018: Micro-dose X-ray security inspection system -- Part 3: Transmission cargo security inspection system

---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 3. Transmission cargo security inspection system ICS 13.310 A91 National Standards of People's Republic of China Micro-dose X-ray safety inspection equipment Part 3. Transmissive cargo safety inspection equipment Part 3. Transmissioncargosecurityinspectionsystem Published on.2018-11-19 2019-12-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Equipment Category 1 5 General technical requirements 2 6 Test method 4 7 Inspection rules 8 8 Packaging, labeling, storage and transportation 9 9 random technical documents 9 Appendix A (Normative Appendix) Test Body 10 Appendix B (Normative) Peripheral Equivalent Rate Test Scattering Body 23 Appendix C (informative) Test image evaluation record table 24

Foreword

All 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 third part of GB 15208. This part is drafted in accordance with the rules given in GB/T 1.1-2009. 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, National Security and Alarm System Product Quality Supervision and Inspection Center (Shanghai), National Security and Alarm System Product Quality Supervision and Inspection Center (Beijing), Tongfang Weishi Technology Co., Ltd., Shanghai Gaojing Imaging Technology Co., Ltd. The main drafters of this section. Wang Ben, Liao Jianxin, Meng Zhiqiang, Dong Mingwen, Niu Yujie, Liu Caixia, Tao Lei, Yang Zhongrong, Peng Ningxuan, Zhao Yue, Han Jingyu, Lin Weizhi, Chen Yu. Micro-dose X-ray safety inspection equipment Part 3. Transmissive cargo safety inspection equipment

1 Scope

This part of GB 15208 specifies the equipment classification, general technical requirements, test methods and inspection rules for transmissive cargo safety inspection equipment. Then, packaging, marking, storage and transportation, and random technical documentation. This section applies to the design, manufacture, assembly, acceptance and use of various transmissive cargo safety inspection equipment. Note. The maximum single-sided length of the height and width dimensions of any one of these equipment inspection channel inlet sections is greater than or equal to 0.91m and less than or equal to 2.41m. This section does not apply to computed tomography (CT), electron accelerators, X-rays with X-ray generators greater than 500 keV. Line safety inspection equipment and vehicle safety inspection equipment.

2 Normative references

The 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 15208.1-2018 Micro-dose X-ray safety inspection equipment - Part 1. General technical requirements GB 15208.2-2018 Micro-dose X-ray safety inspection equipment - Part 2

3 Terms and definitions

The following terms and definitions defined in GB 15208.1-2018 and GB 15208.2-2018 apply to this document. 3.1 Conveyor load capacity maximumloadcapacity The maximum weight of the object to be inspected can be dragged by the device transport device. 3.2 Transmissive cargo safety inspection equipment transmissioncargosecurityinspectionsystem Used to inspect freight items, and the maximum one-sided length of the height and width dimensions of any one of the inspection passage entrance sections is greater than or equal to Transmission micro-dose X-ray safety inspection equipment of 0.91 m, less than or equal to 2.41 m.

4 Equipment classification

Transmissive cargo safety inspection equipment (hereinafter referred to as equipment) is classified according to the size of the entrance section of the inspection passage, see Table 1. Table 1 Equipment classification unit is mm Device type maximum single side size L Type I 910 ≤ L ≤ 1210 Type II 1210 \u003cL≤1510 Table 1 (continued) Unit is mm Device type maximum single side size L Type III 1510 \u003cL≤1810 Type IV 1810 \u003cL≤2110 V type 2110 \u003cL≤2410

5 General technical requirements

5.1 Performance Specifications 5.1.1 Overview For equipment with multiple transmission viewing angles, the performance index of any one of the viewing angles should meet the requirements of 5.1, and each test with each perspective The worst value of the result is used as the performance indicator of the device; for the device with multiple inspection channels, the performance index of any one of the inspection channels is It should meet the requirements of 5.1 and use the worst value of each test result of each inspection channel as the performance index of the equipment. Carry out 5.1.2~ 5.1.8 During the test, the parameters of the tube voltage, tube current, and total filtration of the X-ray generator should be kept constant. 5.1.2 Line resolution Should be able to distinguish the minimum single solid copper wire diameter requirements, see Table 2. Table 2 Line resolution indicators are required to be in millimeters Type I Type II Type III Type IV Type V Type Line resolution 0.203 0.203 0.203 0.203 0.511 5.1.3 Penetration resolution Should be able to resolve the minimum single solid copper wire diameter under the 9.5mm, 15.9mm, 22.2mm and 27.1mm alloy aluminum steps Requirements, see Table 3. Table 3 Penetration resolution indicators are required to be in millimeters Type I Type II Type III Type IV Type V Type Penetration resolution 0.511 0.511 0.511 0.511 0.813 5.1.4 Spatial resolution Should be able to distinguish the minimum line diameter requirements, see Table 4. Table 4 Spatial resolution indicators are required to be in millimeters Type I Type II Type III Type IV Type V Type Spatial resolution 2 2 2.4 2.4 2.4 5.1.5 Penetration Should be able to distinguish the requirements of the thickness of the thinnest steel plate, see Table 5. Table 5 penetration force requirements in millimeters Type I Type II Type III Type IV Type V Type Penetration force 30 40 45 50 55 5.1.6 Organic matter discrimination It should be able to distinguish polymethyl methacrylate steps with thicknesses ranging from 40mm to 160mm and impart orange color with different saturations. 5.1.7 Mixture resolution It should be able to distinguish the aluminum step of the alloy with a thickness ranging from 1mm to 80mm and give green to different saturations. 5.1.8 Inorganic resolution It should be able to distinguish steel steps with thicknesses ranging from 0.2mm to 24mm and impart blue with different saturations. 5.1.9 Conveying device Meet the following requirements. a) The conveying speed in the inspection state shall be greater than or equal to 0.1 m/s. b) The conveyor belt should not run in the forward and reverse directions (only for equipment containing conveyor belts). --- Within 10 minutes of continuous continuous operation, the lateral displacement is less than or equal to 5mm; --- Within 30s of reverse operation, the lateral displacement is less than or equal to 10mm. c) Should be able to load the corresponding weight, see Table 6. Table 6 The load capacity index of the conveying device is required to be in kilograms. Type I Type II Type III Type IV Type V Type Conveyor load capacity ≥200 ≥320 ≥1000 ≥1500 ≥2000 5.2 Radiation and environmental safety indicators 5.2.1 Single dose check Should comply with the provisions of 5.2.1 of GB 15208.1-2018. 5.2.2 Peripheral dose equivalent rate Should comply with the provisions of 5.2.2 of GB 15208.1-2018. 5.2.3 Equipment noise Should comply with the provisions of 5.2.3 of GB 15208.1-2018. 5.3 Operating environment 5.3.1 Working environment conditions Should comply with the provisions of 5.3.1 of GB 15208.1-2018. 5.3.2 Power Adaptability Should comply with the provisions of 5.3.2 of GB 15208.1-2018. 5.4 Security performance Should comply with the provisions of 5.4 of GB 15208.1-2018. 5.5 Mechanical structure Should comply with the provisions of 5.5 of GB 15208.1-2018. 5.6 Electromagnetic compatibility Should comply with the provisions of 5.6 of GB 15208.1-2018. 5.7 Anti-shock Should comply with the provisions of 5.7 of GB 15208.1-2018. 5.8 Anti-mechanical danger Should comply with the provisions of 5.8 of GB 15208.1-2018. 5.9 Preventing the spread of flame Should comply with the provisions of 5.9 of GB 15208.1-2018. 5.10 Temperature limits and heat resistance Should comply with the provisions of 5.10 of GB 15208.1-2018. 5.11 Environmental adaptability Should comply with the provisions of 5.11 of GB 15208.1-2018. 5.12 Functional requirements Should comply with the provisions of 5.12 of GB 15208.1-2018.

6 Test methods

6.1 Environmental requirements Should comply with the provisions of 6.1 of GB 15208.1-2018. 6.2 Main instruments and tools for testing Should comply with the provisions of 6.2 of GB 15208.1-2018. Test body A and test body B. See Appendix A. Scatter. See Appendix B. 6.3 Performance Indicator Test 6.3.1 Overview The placement and orientation of the test body depends on the relative position of the X-ray generating device and the detector. Should be based on different performance For the requirements of the standard test, the test body is placed according to the specified position. The test body is placed as shown in Figure 1, where L and H are the width and height of the inspection channel, respectively. degree. When testing at 1, 2, and 3 points, the test body should be placed close to the surface of the conveyor, and at 1 o'clock, the test body should be as close as possible to the inspection channel. On the side, the test body should be as close as possible to the right side of the inspection channel at 3 o'clock. At 5 o'clock, the test body should be as close as possible to the left and top of the inspection channel. The test body at 6 o'clock should be as close as possible to the right and top of the inspection channel. The test body plane should be perpendicular to the ray emission direction for best testing Body image. In addition, image processing is allowed to achieve the best evaluation results. The test results should be recorded in the format of Appendix C. Description. H --- check the height of the channel; L --- Check the width of the channel. Figure 1 Schematic diagram of the detection position 6.3.2 Line resolution test Place test body B in position 2 of the inspection area, start and complete the scan, and visually measure the X-ray of test card 1 in test body B on the display. Image, test the ability of the device to separate the single solid copper wire in the background of the test body, and determine whether the result meets the requirements of 5.1.2. Note. If you can see all of the wires, you can think that the device can distinguish the wires. 6.3.3 Penetration resolution test Place test body B in position 2 of the inspection area, start and complete the scan, and visually measure the X-ray of test card 2 in test body B on the display. The image, the device is tested for the ability to distinguish a single solid copper wire under the aluminum step of the alloy, and the result is in accordance with the requirements of 5.1.3. Note. If you can see all the wires covered by the aluminum alloy step, you can think that the device can distinguish the wire. 6.3.4 Spatial resolution test Place test body B in position 2 of the inspection area, start and complete the scan, and visually inspect the X-ray of test card 3 in test body B on the display. Image, test the ability of the device to resolve the wire pair, and determine whether the result meets the requirements of 5.1.4. Note. If all four horizontal and vertical wires are completely separated, the device can be considered to be able to resolve this pair. 6.3.5 Penetration test Experiment with the following. a) Place test object A in position 1~position 6 of the inspection area, start and complete the scan, and visually test the test body A on the display. X-ray image, test the ability of the equipment to penetrate the steel plate, each position can be resolved by three-quarters of the round lead block The maximum thickness of the steel plate is the thickness of the steel plate that can be penetrated by the equipment, and the judgment result meets the requirements of 5.1.5; Note. If you can see most of the three-quarters of the lead blocks that are blocked by the steel plate and can resolve the direction of the notch, the device can be considered to penetrate the steel plate. b) Observe the warning information of the equipment in the area that is not penetrated, and judge whether the result meets the requirements of 5.4.1g in GB 15208.1-2018) Claim. 6.3.6 Organic matter discrimination test Place test body B in position 2 of the inspection area, start and complete the scan, and visually test the X-ray of test card 4 in test body B on the display. Line image, whether the judgment result meets the requirements of 5.1.6. Note. If the adjacent steps of the polymethyl methacrylate step sample can be distinguished and can give different saturation orange, then the device can be considered Resolve. 6.3.7 Mixture resolution test Place test body B in position 2 of the inspection area, start and complete the scan, visually test the X-ray of test card 5 in test body B on the display. Line image, whether the result meets the requirements of 5.1.7. Note. If the adjacent steps of the aluminum alloy step sample can be distinguished and can be given a different saturation of green, the device can be considered to be distinguishable. 6.3.8 Inorganic resolution test Place test body B in position 2 of the inspection area, start and complete the scan, and visually test the X-ray of test card 6 in test body B on the display. Line image, whether the judgment result meets the requirements of 5.1.8. Note. If the adjacent steps of the steel step sample can be distinguished and can be given a different shade of blue, the device can be considered to be distinguishable. 6.3.9 Conveyor test Follow the steps below to experiment. a) Under the minimum conveying speed of the conveying device in the inspection state, run at no load, test the unit time travel of the conveying device, calculate Conveying speed, whether the judgment result meets the requirements of 5.1.9a); b) Continuously run forward for 10 minutes at the maximum conveying speed of the conveying device in the inspection state, and determine whether the result meets 5.1.9b) Requirements c) Continuously reverse the operation for 30s under the maximum conveying speed of the conveying device in the inspection state, and judge whether the result meets 5.1.9b) Requirements d) divide the total weight of the load used for testing into 4 equal parts at the maximum conveying speed at which the conveying device is inspected, making it heavy The amount is evenly distributed on the conveying device. When the above load is placed on the surface of the conveying device, the device can operate normally, and the result of the determination is Meet the requirements of 5.1.9c). 6.4 Radiation and environmental indicators test 6.4.1 Single dose test Place the center of the radiation sensitive component of the dosimeter in a horizontal center position on the surface of the delivery device within the inspection channel. According to GB 15208.1- The test method specified in 6.3.1 of.2018 tests the equipment and determines whether the result meets the requirements of 5.2.1. 6.4.2 Peripheral Equivalent Rate Test When the conveyor is stationary, the scatterer with the same number of ray bundles (see Appendix B) is placed on the surface of the conveyor in the inspection channel. At the horizontal center position, each scatterer is respectively illuminated by a beam of radiation, and the 400 x 400 plane of the scatterer is parallel to the beam exit direction. Test the equipment according to the test method specified in 6.3.2 of GB 15208.1-2018, and determine whether the result meets the requirements of 5.2.2. 6.4.3 Equipment noise test Test the equipment according to the test method specified in 6.3.3 of GB 15208.1-2018, and determine whether the result meets the requirements of 5.2.3. Claim. 6.5 Power supply range test Test the equipment according to the test method specified in 6.4 of GB 15208.1-2018, and determine whether the result meets the requirements of 5.3.2. Claim. 6.6 Safety performance test Test the equipment according to the test method specified in 6.5 of GB 15208.1-2018, and determine whether the result meets 5.4. Claim. 6.7 Mechanical structure test Test the equipment according to the test method specified in 6.6 of GB 15208.1-2018, and determine whether the result meets 5.5. Claim. 6.8 Electromagnetic Compatibility Test Test the equipment according to the test method specified in 6.7 of GB 15208.1-2018, and determine whether the result meets 5.6. Claim. 6.9 Anti-shock test Test the equipment according to the test method specified in 6.8 of GB 15208.1-2018, and determine whether the result meets 5.7. Claim. 6.10 Anti-mechanical danger test Test the equipment according to the test method specified in 6.9 of GB 15208.1-2018, and determine whether the result meets 5.8. Claim. 6.11 Prevention of flame spread test Test the equipment according to the test method specified in 6.10 of GB 15208.1-2018, and determine whether the result meets the requirements of 5.9. Claim. 6.12 Temperature limits and heat resistance test Test the equipment according to the test method specified in 6.11 of GB 15208.1-2018, and determine whether the result meets the requirements of 5.10. Claim. 6.13 Environmental Adaptability Test Test the equipment according to the test method specified in 6.12 of GB 15208.1-2018, and determine whether the result meets the requirements of 5.11. Claim. 6.14 Functional Requirements Test Follow the manufacturer's product instructions to determine if the results meet the requirements of 5.12.

7 Inspection rules

7.1 Inspection classification Should comply with the provisions of 7.1 of GB 15208.1-2018. 7.2 Type inspection Should comply with the provisions of 7.2 of GB 15208.1-2018. 7.3 Factory inspection Should comply with the provisions of 7.3 of GB 15208.1-2018. 7.4 Inspection items The inspection items are shown in Table 7. Table 7 Inspection items Serial number inspection project technical requirements test method type inspection factory inspection 1 line resolution 5.1.2 6.3.2 ● ● 2 Penetration resolution 5.1.3 6.3.3 ● ● 3 Spatial resolution 5.1.4 6.3.4 ● ● 4 Penetration 5.1.5 6.3.5 ● ● 5 Organic matter discrimination 5.1.6 6.3.6 ● ● 6 Mixture resolution 5.1.7 6.3.7......

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