This standard specifies the composition, classification, technical requirements, inspection rules and packaging and transportation requirements of the radial container inspection system. It is applicable to the radial container inspection system and also to the radial inspection system for inspecting various types of containerized goods, transport vehicles, freight trains and the goods they carry. GB 19211-2003 Radial Container Inspection System GB19211-2003 Standard Download Decompression Password: www.bzxz.net

ICS 19. 100
National Standard of the People's Republic of China
GB19211—2003
Radiographic Container Inspection System
Cargo/Vehicle radiographic inspection systems2003-06-23Promulgated
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Implementation on 2003-12-01
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GB 19211—2003
Articles 5.5 and 5.6 of Chapter 5 and Articles 8.2.3 and 8.4.2.2 of Chapter 8 of this standard are mandatory, and the rest are recommended.
Container is one of the main loading tools for domestic cargo transportation in today's world. The radiographic container inspection system used to inspect the cargo in the container is the most effective inspection device in the world. This standard applies to the inspection device of containers and container cargo, and specifies the basic functions, technical performance and safety requirements of the inspection system, aiming to ensure: the safety of personnel, equipment and environment:
- product availability:
- the advancement of product technical performance.
This standard was proposed by the National Nuclear Instrument Standardization Technical Committee and is under the jurisdiction of the Nuclear Industry Standardization Research Institute. The main drafting units of the standard are: Nuclear Industry Standardization Research Institute, Tsinghua Jianli Weishi Technology Co., Ltd., and Department of Engineering Physics of Tsinghua University. The main drafters of this standard are: Li Guoyang, Li Junli, Fu Xiaoyu, and Xue Xin. 1 Scope
Radiation-type container inspection system
GB1921F-2003
This standard specifies the composition, classification, technical requirements, test methods, inspection rules, and packaging and transportation requirements of radiation-type container inspection systems.
This standard is applicable to radiation-type container inspection systems, and also to radiation-type inspection systems for checking various types of containerized cargo, transport vehicles, freight trains, and the cargo they carry. This standard does not apply to computer tomography and neutron radiation-type container inspection systems. 2 Normative references
The clauses in the following documents become the clauses of this standard through the introduction of this standard. For all referenced documents with a date, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties that reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all referenced documents without a date, the latest version applies to this standard. GB/T191-200 Packaging storage and transportation graphic mark (eqS0780: 1997) GB/T2423.18-2000 Environmental testing for electrical and electronic products Part 2: Test Test Kb: Age fog, alternating (fluoride solution (11X: 60068-252: 1996)
(GB/A797.6-1995 Natural environmental conditions for electrical and electronic products Dust, sand, salt GB/5033-1985 Wafer paper box for export product packaging GB5172-1988 Radiation protection regulations for particle accelerators (H/T6543-1986 Corrugated paper box
GB/T89931998 Environmental conditions and test methods for nuclear instruments GR11806-1989 Regulations for safe transportation of radioactive materials GB/T 12464-2002 Ordinary wood (me J1S 7. [402] (: H/T 17709.1—1999 General standard for electromagnetic compatibility - Immunity test for residential, commercial and light industrial environments (idIEC 61000-6-1: 1997)
GB 17799. 3---2001
IEC 61000-6-3: 1996)
General standard for electromagnetic compatibility - Emission standard for residential, commercial and light industrial environments (idt C1SPR/GRZ. 143--2002
Container inspection system - Radiological health protection requirements 3 Terms and definitions
The following terms and definitions apply to this standard. 3.1
Radiated container inspection system cargo/vehiclerarlitographit:inspection 3.2
X-ray inspection system An inspection system that uses a device that generates X-rays as a radiation source. 3.3
Gamma radioactive sources inspection system CB19211—2003
An inspection system that uses a sealed radioactive source as a radiation source. 3.4
Stationary inspection system An inspection system that is fixedly installed in a building. 3.5
Mobile inspection system An inspection system that can be moved between different inspection sites. 3.5.1
Mobile inspection system A system that can be moved from one site to another. 3.5. 2
Combined mobile inspection systemRelacatnble inspection systemAn inspection system that can be disassembled and relocated between inspection sites. 3.6
Traincargoinspection systemAn inspection system that can conduct online inspections of freight trains and their cargo. 3.7
Radiation controlled areacotrolled area
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A type of area in a radiation workplace where special protective measures and safety measures are required or may be required to:
a) control normal exposure under normal working conditions; h) prevent potential exposure or limit its extent. 3.8
Supervised area
Any area that is not identified as a controlled area and is usually not subject to special protective and safety measures, but is subject to continuous inspection of its radiation conditions.
Steel Penerulian (SP) The maximum steel plate absorber thickness behind the steel plate absorber (such as bricks) that the inspection system can display at a specified scanning speed.
Wire Resolution wD) Wire Delectablliy wD) The ratio of the minimum wire thickness behind the steel plate absorber of a certain thickness that the inspection system can display at a specified scanning speed to the thickness of the absorber.
Contrast Indlcator (tndex) (Cl) The ratio of the minimum sheet thickness behind the steel plate absorber of a certain thickness that the inspection system can display to the thickness of the copper plate absorber at a specified scanning speed.
Air kerma per scan (airkerma) (AK) The air kerma of a fixed point in the container hoop after scanning under empty container conditions 3.13
Scanning speed (SS) (SS) The relative movement speed between the radiation source and the object to be inspected. 3.14
Thuruughput (TP)
Through rate (TP)
The maximum number of 12.192m.40ft> standard push containers that the inspection system can inspect per unit time. 4 System composition and product classification
4. 1 System composition
The inspection system should generally include the following components: Radiation source:
b) Radiation detection and imaging system,
c) Scanning and its operation control system:
d) Image inspection system:
e) Safety interlocking device and radiation protection facilities. 4.2 System Functions
The inspection system should have the following basic functions: a) Ability to display complete and identifiable images of the inspected object in real time; ) Ability to effectively control the entire inspection process c) Effective and reliable safety protection function. 4.3 Product Classification
4.3.1 Classification by radiation source type
X-ray inspection system:
b) Radiation inspection system.
4.3.2 Classification by product structure
|) Fixed inspection system:
h) Mobile inspection system.Including vehicle-mounted mobile inspection and storage systems and combined mobile inspection systems, 4, 3.3 Classification by inspection object
a) Inspection system used to inspect various types of containerized cargo and transport vehicles: 1) Inspection system used to inspect freight trains and the cargo they carry. 5 Technical requirements
5.1 Structure and appearance
5.1.1 The design and operation procedures of the inspection system should meet the basic requirements of human factors engineering and be easy to operate and maintain. GB 19211-2003
5.1.2 All control cabinets, control boxes, consoles and accessories should be installed with wheels and have a good appearance: there should be no obvious mechanical damage on the surface of each part of the system; all markings and handwriting on the panel and display panel should be clearly legible. 5.1.3 The outer cover of all devices should be easy to install and remove, and the frame should have sufficient strength and rigidity, and should not be deformed during normal transportation.
5.1.4, the structural design of the inspection system should take into account the need to prevent sand and dust. And it should be convenient for regular dust removal and maintenance. 5.2 Performance characteristics
5.2.1 Penetration
According to different use requirements, the scanning speed is specified to be 0.1m/s, and the penetration of the inspection system is classified according to Table 1 GB 19211-2003
Penetration/mm
5.2.2 Wire resolution
50SP153
Penetration classification
150-SP250
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According to different use requirements, the scanning speed is specified to be 0.1m/≤, the thickness of the steel plate absorber is 100m, and the wire resolution of the inspection system should be classified according to Table 2,
Resolution classification
Wire resolution J/%
5. 2. 3 Contrast sensitivity
4.05WT8.0
According to different use requirements: the scanning speed is specified to be 0.1m/s, the thickness of the steel plate absorber is 100mm+, and the contrast sensitivity of the inspection system should be classified according to Table 3.
Table 3 Contrast sensitivity classification
Contrast sensitivity/%
5. 2.4 Scanning speed
1. 0≤CI<2. 0
Under normal working conditions, the scanning speed of the inspection system (including freight train inspection system) should not be less than 0.1m/s. The scanning speed of the freight train inspection system shall be determined by negotiation between the manufacturer and the user. 5.2.5 Pass rate
It is determined by negotiation between the manufacturer and the user.
5.2.6 Single inspection air kerma
The specified scanning speed is 0.1 Tm/s. The maximum average single inspection air kerma of the inspection system shall be classified according to Table 4. Table 4 Maximum average single inspection air kerma classification
Maximum average single inspection air kerma/uGy5.3 Power supply
10-AK100
The inspection system shall be able to work normally under the power supply conditions of AC/380 (110%) V/three-phase five-wire system/50 Hz to 1 Hz. 5.4 Environmental adaptability
Under the environmental conditions listed in Table 5, the performance of the inspection system shall meet the requirements of this standard. Manufacturers shall indicate the environmental applicability category of the product in the product description.
Classification of environmental conditions for inspection system
Damaged mirror
Environmental temperature and
Relative humidity
Weather pressure
Road requirements
Fixed inspection system
Combined mobile inspection system
—40℃~40℃, 95%
-25℃~40%, not more than 95%
-5℃~55℃, not more than 95%
EG kPa--1ot kP2
Vehicle-mounted mobile inspection system
Sensor energy in GB/T 4797.5--1995 Table 9 of the "harsh" level salt spray environment (i.e., the flow rate is 8g/(d) ~ 90mg/(md)) should be able to be used under light rain or light demand conditions
It should be able to be used alone on Grade 3 (inclusive) or above roads. 5.5 Radiation safety
5.5.1 The ionizing radiation safety of the inspection system should comply with the corresponding requirements in GBZ 143. 5.5.2 The microwave radiation safety of the inspection system should comply with the corresponding requirements in GB5]72. 5.6 Electrical safety
5.6.1 Equipment protection grounding
The inspection system should be equipped with protective grounding. The resistance between the metal surface of the equipment and the grounding terminal should not be greater than 0.1. 5.6.2 Insulation resistance
(B 19211-2003
Under the environmental conditions listed in Table 8, the insulation resistance of each phase line and neutral line of each independent power supply equipment in the inspection system to the ground (PF line) shall not be less than three Mn.
5. 6. 3 Dielectric strength
Electrical equipment in the inspection system that implements the protective grounding measures required in 5.6.1 shall be able to withstand the dielectric strength test specified in Table 6, and shall not have a southward or repeated flying phenomenon within the specified duration (electrical equipment that is not suitable for withstanding the test voltage can be disconnected during the test).
Table 6 Test voltage of the inspection system under basic insulation conditions Test voltage V
AC effective value or DC peak DC voltageoon
Test duration/
Circuits in the inspection system with a working voltage exceeding 1000V shall ensure the dielectric strength requirements through creepage distance and electrical spacing design 5.6.4 Protection against electric shock
Electrical equipment in the inspection system Under normal operating conditions, it should have anti-electric shock function, and the accessible parts of the equipment should not be dangerously charged. The voltage between the accessible parts and the safety grounding terminal, or between any two accessible parts on the same equipment within a distance of 1.8m (through the surface or in the air) should not exceed 30V effective value and 42.4V drop value or 20V DC. X-ray inspection system, a warning sign of "high voltage danger" should be set in a conspicuous place near its high-voltage equipment. 5.7 Electromagnetic compatibility
The electromagnetic disturbance emission value of each related equipment in the inspection system shall comply with the emission limit requirements specified in (R17799.3). The relevant equipment in the inspection system shall meet the resistance requirements specified in GB/T17799.1. For equipment and components related to the safety interlock device, they should be operated continuously in the predetermined manner during the test period and after the test; other equipment and components are allowed to temporarily lose their functions, as long as such functions can be restored by themselves or can be restored by operating the controller. 6 Test methods
6.1 Reference test conditions and standard test conditions The reference test conditions and standard test conditions are shown in Table 7. Table 7 Reference test conditions and standard test conditions Ambient conditions
Ambient temperature
Relative humidity
Weather strength
Supply voltage (AC):
Power frequency (AC)
Ambient radiation
Reference test conditions
220/350V
Air kerma rate 0,1 rGy/min
Standard test conditions
150~-35℃
45%~-75%
84 kPa*-106 kPa
(t±1%)220/38) V
(1%)50
Air kerma rate less than 0,25 μCy/hCB 19211--2003
Environmental conditions
External electromagnetic field interference
External magnetic induction
6. 2 Test equipment
Test equipment is shown in Table 8.
Test items
Penetration force
Wire resolution
Contrast sensitivity
Scanning speed
Single inspection Air specific energy
Ground resistance
Insulation resistance
Electric strength
Protection against electric shock
Structure and appearance inspection
|Table 7 (continued)
Test conditions
Tolerable
Negligible
Table 8 Instruments and equipment names and technical requirements
Instrument name
Penetration test device
Wire separation test device
Contrast sensitivity test device
Steel tape measure
Environmental research gas kerma rate meter
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Standard test conditions
Less than the minimum value causing interference
Less than 2 times the distance causing interference
Accuracy level requirements
See Figure 2
The maximum measurement error does not exceed 5 mml
Sensitivity ≤1 rGy/h:
The measurement error shall not exceed +10%
Ground resistance tester
Insulation resistance meter (megohmmeter)
AC/DC withstand voltage tester
Voltmeter
Milliohm (m) level measurement error shall not exceed ±3% and the error shall not be less than 600V. The error shall not exceed ±10% 5000 V.150 mA or more. The measurement error shall not exceed +%, +5% and the measurement error shall not exceed ±2.5%
Use the methods of measurement and manual to check the actual object with the requirements of 5.1 and it shall meet the requirements of 5.1. 6.4
Test tools and samples
Test tools and samples are shown in Table 9.
Table 9 Test equipment and samples
Sample name
Steel plate absorber
Steel plate absorber
Steel plate absorber
Steel plate absorber (lead block)
Equipment and sample specifications
500 mmx500 mmx 20 mm
500 mmx530 mmx10 mm
500 mmx500 mmx50 mm
50 mmx00 mmx 80 mm
Rectangle with long side less than 100 mm
Height not more than 300 mmbzxz.net
Note: The steel materials or samples listed in the table are all 45# steel. 6.4.2 Test method
6.4.2.1 Penetration test
The penetration test shall meet the following requirements:
Fix the steel plate absorber and the full absorber as shown in Figure 1, and the distance between the edge of the absorber and the boundary of the plate absorber shall not be less than 50mm
Place the test device at the center of the test area, and make the steel plate plane perpendicular to the main beam of radiation. GB 19211—2003
c) At a scanning speed of not less than 0.1m/s, measure the maximum thickness of the steel plate absorber that can still make the inspection system display the full absorber (lead block) behind the steel plate, which shall meet the corresponding technical requirements. 6.4.2.2 Wire resolution test The wire resolution test shall meet the following requirements: As shown in Figure 2, select a steel plate absorber with a thickness of 1 mm and the corresponding test sample. The distance between the edge of the test sample and the edge of the plate absorber and the distance between the test sample and the absorber shall not be less than 50 mm. The placement angle is shown in Figure 2. Move the test device to the center of the detection area, and then place the steel plate under the auxiliary radiation at a scanning speed of not less than 0.1 m/s. Measure the minimum diameter of the steel wire that can still make the inspection system display the steel plate absorber. Calculate the corresponding WI value based on the obtained data, which shall meet the corresponding requirements. Figure 2 Test device for separating petals 6.4.2.3 Contrast sensitivity test The contrast sensitivity test shall meet the following requirements: As shown in Figure 3, select a steel plate absorber with a thickness of 10 μm and the corresponding test sample. The distance between the edge of the test sample and the boundary of the steel plate absorber and the spacing between the test samples shall not be less than 50 mm. The placement angle is shown in Figure 3. Place the test device in the center of the detection area, and make the plane of the steel plate perpendicular to the main beam of the yoke radiation. At a scanning speed of not less than 1.1 m/s, measure the minimum thickness of the steel sheet behind the steel plate absorber that can still make the inspection system display the steel plate absorber. Calculate the corresponding CI value based on the obtained data, which shall meet the corresponding requirements. Steel pole radiation receiving body
Figure 3 Contrast sensitivity test device
6.4.2.4 Scanning speed test
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Measure the distance between the inspection system and the object to be inspected and the relative movement speed used, calculate the relative movement speed based on the measured value, take the average value of three measurements and calculations, and it should meet the requirements of 5.2.4. 6.4.2.5 Pass rate test
The test method of pass rate shall be determined by negotiation between the manufacturer and the user. 6.4. 3 Single inspection air kerma test Place the thermoluminescent dosimeter on the inner surface of the container to be inspected and at the position closest to the radiation source. The inspection system shall continuously scan for not less than 1 second at a scanning speed not greater than 0.1 r/min. The average value of the obtained air kerma is the maximum average single air kerma, and its value shall meet the requirements of 5.2.
6.5 Environmental adaptability test
The inspection system is a large-scale electromechanical product. When the environment test of the whole machine is not carried out, the electrical components that are sensitive to the corresponding environmental conditions or have independent functions can be tested according to their actual working environment conditions. 6.5.1 Temperature and damp heat test
For different components, high and low temperature and heat tests should be carried out according to the requirements in the table according to their working environment. After the test, the performance indicators of the test samples should meet the system requirements. 10
Test date
Determined temperature
Low temperature storage
High temperature storage
Test conditions
Minimum working environment temperature change
Working environment temperature
Temperature and humidity test
Test method
CB8:03 Appendix B
GR 893 Appendix A
(155993 Appendix 1)
GB 803 Appendix B
The allowable deviation for humidity is 1%: The allowable deviation for temperature is 3% Note 1
The allowable deviation for humidity should be determined according to the working environment conditions. 6.5.2 Salt spray test GB 19211--2003 Electrical components or connectors that are sensitive to salt spray in the system shall be subjected to salt spray test in accordance with the severity level (2) and related test methods and conditions in Chapter 6 of B/T2423.182000. The performance indicators of the samples after the test shall meet the system requirements. 6.5.3 Rain test A rain test shall be carried out on the vehicle-mounted mobile inspection system. The recommended accelerated rain test conditions are shown in Table 11. Table 11 Accelerated rain test conditions Test classification Working state Transport state Precipitation level Test specimen Precipitation intensity (mm/24 h) 25, 0.~49, 9 50, 0--99. 9
Duration/min:
Perform a shower test on the vehicle-mounted mobile detection system according to the conditions in Table 11. After the test, the performance indicators of the inspection system shall meet the requirements of 5.1 and 5.2.
6.5.4 Transportation test
For the components of the inspection system with independent functions or the overall packaging of the subsystem, a road transportation test shall be carried out according to the test conditions and methods provided in Appendix H of GB/T 8993--1998. After the test, the performance indicators of the test samples shall meet the requirements of 5.1 and 5.2: The vehicle-mounted mobile detection system travels a total of 250km at a speed of 25km1/h~30km/h on a third-level highway. Its performance indicators shall meet the requirements of 5.1 and 5.2. 6.6 Radiation safety test
The inspection system shall be subjected to a radiation safety test in accordance with the requirements of GFZ143. 6.7 Electrical safety test
6.7.1 Equipment grounding resistance
Use a grounding resistance tester and a test current of 25A to measure the voltage between the housing of the electrical equipment and the grounding terminal. It shall meet the requirements of 5.6.1.
6.7.2 Insulation resistance
Use a 500V insulation resistance meter to detect the insulation resistance between the phase line and the metal housing of the grounding equipment. It shall meet the requirements of 5.6.2. 6.7.3 Dielectric strength
Perform a voltage test on the equipment under test according to the voltage value and voltage application time specified in Table 7. During the test, the test voltage shall be gradually increased to 1UV within 10: and maintained for 1 s. Observe the test results. No flashover or repeated arcing shall occur. 6.7.4 Protection against electric shock
Use a 2000V parallel AC voltmeter to directly measure the voltage value between the accessible parts to be tested and the two ends of the safety grounding terminal. The result shall meet the requirements of 5.6.4.
6.8 Electromagnetic compatibility test
According to the test conditions specified in clauses 6 and 9 of R17799.3-2001, the electromagnetic disturbance emission test is carried out on the inspection system at 10 1 points outside the radiation supervision area. The test results shall meet the requirements of 5.7. According to R17799.3-2001, the electromagnetic disturbance emission test is carried out on the inspection system at 10 1 points outside the radiation supervision area. The test results shall meet the requirements of 5.7.1-199, Section 6 and Chapter 9, test conditions and test requirements, conduct magnetic immunity test on the inspection system, and the test results should meet the requirements of 5.71. Inspection rules
7.1 Inspection classification
Inspection is divided into type inspection and factory inspection.
7.2 Inspection Items
Inspection Items See Table 12,
GB 19211-—2003
Penetration
Resolution
Contrast Sensitivity
Can Sweeping Speed
Pass Rate
Single Drinking Inspection Gas Release Energy
Environmental Adaptability
Radiation Safety
Equipment Grounding Resistance
Insulation Resistance
Dielectric Strength
Protection Against Electric Shock
Electromagnetic Compatibility
Note: Indicates mandatory items: ○ Indicates optional items, 7.3 Inspection
Table 12 Inspection Items
Type Inspection
Factory Inspection
Technical Requirements
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Test Methods
6. 4. 2. 1
6. 4. 2. 2
6. 4. 2. 3
6. 4, 2. 5
Type inspection should be carried out on the products according to the inspection items listed in Table 12. Factory inspection should be carried out on each product according to the factory inspection items listed in Table 12. The products can only be shipped after they are qualified and the inspection report and certificate are issued. 7.4 Judgment Rules
If unqualified items are found during type inspection, the relevant components or subsystems of the product are allowed to be adjusted or replaced no more than twice, and re-inspected. If unqualified, the design should be improved. If the unqualified items are found during the factory inspection, the relevant parts or subsystems of the product are allowed to be adjusted or replaced no more than twice, and re-inspected. If it is still unqualified, it shall be judged as unqualified. B Marking, Packaging, Accompanying Documents, Transportation and Storage 8.1 Marking
Each inspection system must be equipped with a permanent sign or label with clear traces in a prominent position, and its content should include: a)
Manufacturer name;
System and subsystem name;
System and subsystem model:
Manufacturing date and factory number;
Warning sign or warning description (the warning sign shall comply with the radioactive symbol and sign specified in GB11806): Product standard number:
Registered trademark.
8.2 Packaging
8.2.1 For subsystems, try to use independent packaging as a whole: functional components should be packaged as a whole; each component and other parts should be packaged separately inside and outside and fixed in the packaging box. The outer packaging should be boxed. 8.2.2 The packaging of subsystems or independent functional components should be wooden boxes that meet the requirements of GB/T12464: The packaging of components and parts should be
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