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SJ 20799-2001 General specification for airborne power conversion equipment

Basic Information

Standard ID: SJ 20799-2001

Standard Name: General specification for airborne power conversion equipment

Chinese Name: 机载电源变换设备通用规范

Standard category:Electronic Industry Standard (SJ)

state:in force

Date of Release2001-12-27

Date of Implementation:2002-01-01

standard classification number

Standard Classification Number:Aviation & Aerospace>>Aircraft and Accessories>>V40 Electrical Systems and Equipment

associated standards

Publication information

publishing house:Industrial Electronics Press

Publication date:2004-04-19

other information

Drafting unit:The Fourth Electronic Research Institute of the Ministry of Information Industry and the Third Research Institute of the Air Force

Introduction to standards:

This specification specifies the requirements, quality assurance regulations and delivery preparation requirements for airborne power conversion equipment. This specification applies to AC-DC, DC-DC and DC-AC power conversion equipment for airborne electronic equipment. SJ 20799-2001 General Specification for Airborne Power Conversion Equipment SJ20799-2001 Standard download decompression password: www.bzxz.net

Some standard content:

Military Standard of the Electronic Industry of the People's Republic of China FL6130
SJ20799—2001
General specification for aircraft converters2001-12-27 Issued
2002-01-01 Implementation
Approved by the Ministry of Information Industry of the People's Republic of China Scope
Referenced Documents
4 Quality Assurance Provisions
5 Delivery Preparation
6 Description of Events
Appendix A Defect Classification (Supplement)
Appendix B Treatment after Interruption of Bacteria Test (Reference) Times
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1 Scope
Military Standard of the Electronic Industry of the People's Republic of China General Specification for Aircraft Converters
General specification for aircraft converters1.1 Subject Content
SJ20799—2001
This specification specifies the requirements, quality assurance regulations and delivery preparation requirements for airborne power converters. 1.2 Scope of Application
This specification applies to AC-DC, DC-DC and DC-AC power converters for airborne electronic equipment (hereinafter referred to as equipment). 2 Reference documents
GB191--90 Packaging, storage and transportation graphic signs
GB6388-86 Transport packaging delivery and receipt signs GB5465.2-1996 Graphic symbols for electrical equipment GJB150.2-86 Environmental test methods for military equipment GJB150.3-86 Environmental test methods for military equipment GJB150.4--86 Environmental test methods for military equipment GJB150.5-86
Environmental test methods for military equipment
GJB150.6-86, Environmental test methods for military equipment GJB150.986 Military equipment Environmental test methods GJB150.11—86
Environmental test methods for military equipment
GJB150.16—86
Environmental test methods for military equipment
Low pressure test
Commercial temperature test
Low temperature test
Temperature shock test
Temperature-altitude test
Wet heat test
Salt spray test
Vibration test
GJB150.18—86
Environmental test methods for military equipment
Impact test
GJB 151A--97
GJB152A—97
GJB179A—96
GJB181—86
GJB367.2—87
GJB368A—94
Requirements for electromagnetic emission and sensitivity of military equipment and subsystems. Counting sampling inspection procedures and tables for electromagnetic emission and sensitivity measurement of military equipment and subsystems
Aircraft power supply characteristics and requirements for electrical equipment. General technical conditions and environmental test methods for military communication equipment. General outline for equipment maintainability
Maintainability test and evaluation
GJB2072--94
GJB441-88
Installation form and basic dimensions of chassis and mounting racks for airborne electronic equipment GJB457—88
GJB89990
General specification for airborne electronic equipment
Reliability evaluation and acceptance test
Promulgated by the Ministry of Information Industry of the People's Republic of China on December 27, 2001 and implemented on January 1, 2002
SJ20799—2001
IEC60478-2—1986 DC output stabilized power supply IEC60886-1980 AC output stabilized power supply 3 Requirements
3.1 Product specifications
The equipment shall comply with the provisions of this specification and the corresponding product specifications. If the requirements of this specification conflict with those of the product specifications, the product specifications shall prevail.
3.2 Qualification assessment
The equipment submitted in accordance with this specification shall be a product that has been qualified or approved for finalization. 3.3 Design
The design of the equipment shall comply with the provisions of Chapter 6 of GJB457 and the product specifications. The components and raw materials used shall ensure that the equipment complies with the provisions of this specification and the product specifications. However, the acceptance and approval of any components and raw materials cannot be used as the basis for the acceptance of the finished product.
3.4 ​​Appearance quality
The outer surface of the equipment should not have obvious dents, cracks, scratches, deformation and rust, and the surface coating should not fall off. 3.5 Structure
The structure of the equipment shall comply with the provisions of the product specifications. The operation of the equipment switches, buttons and knobs should be flexible and reliable, and the parts should be tightened without looseness. 3.6 Dimensions
The dimensions of the equipment shall comply with the provisions of GJB441 and the product specifications. 3.7 Weight
The weight of the equipment shall be specified by the product specifications.
3.8 Signs and codes
The text and graphic symbols that describe the functions shall be clear, distinct and firm, and the graphic symbols used shall comply with the provisions of GB5465.2.
3.9 Performance characteristics
3.9.1 Input characteristics
When the AC power supply system and the DC power supply system meet the requirements of GJB181 and product specifications, the following input characteristics of the equipment shall comply with the provisions of the product specifications:
-Steady-state input voltage:
Steady-state input frequency:
Steady-state input waveform total harmonic distortion;
Transient input voltage;
-Transient input frequency:
Input current balance:
Input current waveform.
3.9.2 Performance parameters
Power conversion equipment Under the conditions of input characteristics specified in Article 3.9.1, the various parameters of the three types of power conversion equipment listed in Table 1, AC-DC, DC-DC and DC-AC, shall comply with the requirements of the product specifications. 2
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Performance parameters
Negative load effect
Source voltage effect
Periodic and random offset
Temperature coefficient
Load transient effect
Source voltage decomposition effect
Output impedance
Input power factor
Negative power factor
Output power
Output waveform distortion
Output voltage imbalance
Phase imbalance
Output current
Source frequency effect
Output voltage
Output frequency
Wave coefficient
SJ20799-—2001
Note, "·" indicates main performance parameters: "O" indicates non-main performance parameters, and "" indicates no requirements. 3.9.3
Protection characteristics
3.9.3.1 Overcurrent protection
The equipment shall be able to protect when the load current exceeds the rated load current. The specific protection value and the protection method to be adopted shall be specified by the product specifications.
3.9.3.2 Short-circuit protection
The equipment shall be able to protect when the load is short-circuited. The specific protection method to be adopted shall be specified by the product specifications. 3.9.3.3 Overvoltage protection
The equipment shall be able to protect when the output voltage exceeds the specified upper limit. The specific protection method to be adopted shall be specified by the product specifications. 3.9.3.4: Undervoltage protection
The equipment shall be able to protect when the output voltage is lower than the specified lower limit. The specific protection method to be adopted shall be specified by the product specifications. 3.10 Continuous working time
Unless otherwise specified in the contract or order, the equipment shall be able to work normally for 48 hours continuously under the conditions of use specified in the product specifications. 3.11 Safety
3.11.1 Insulation resistance
SJ20799—2001
The insulation resistance between the input terminal and the housing (the power switch is in the on position) and between the external live terminals with insulation requirements and the housing shall comply with the provisions of Table 2.
Under normal conditions
3.11.2 Dielectric strength
Measure immediately after the damp heat test
The insulation resistance test shall be carried out at the same test voltage as the working voltage between the input terminal and the housing (the power switch is in the on position) and between the external live terminals with insulation requirements and the housing according to the provisions of Table 3. No arcing or breakdown shall occur during the test. Table 3
Working voltage
>60~120
>120~180
>120240
3.11.3 Leakage current
The leakage current of the equipment should not exceed 5mA.
3.12 Electromagnetic compatibility
The electromagnetic compatibility of the equipment shall comply with the relevant provisions of GJB151A. 3.13 Environmental adaptability
Test voltage
The items of the equipment environmental test and the severity category of the test conditions shall be specified by the product specification. V
The main performance characteristics tested after the environmental test include the main performance parameters in Table 1 and the protection characteristics of Article 3.9.3, and their requirements are specified by the product specification.
3.13.1 Low temperature storage
The equipment is placed at a temperature of -55°C for 24 hours. After recovery, its appearance, structure and main performance characteristics shall comply with the provisions of Articles 3.4, 3.5 and product specifications respectively.
3.13.2 Low temperature operation
The equipment is operated at a temperature of -40°C for 24 hours. Its appearance, structure and main performance characteristics shall comply with the provisions of Articles 3.4, 3.5 and product specifications respectively.
3.13.3 High-temperature storage
The equipment is stored at 70°C for 48 hours. After recovery, its appearance, structure and main performance characteristics shall comply with the provisions of Article 3.4, Article 3.5 and product specifications.
3.13.4 High-temperature operation
The equipment is operated at 50°C for 24 hours. Its appearance, structure and main performance characteristics shall comply with the provisions of Article 3.4, Article 3.5 and product specifications.
3.13.5 Temperature shock
shall comply with the provisions of GJB150.5 and product specifications. 3.13.6 Temperature-altitude
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SJ20799—2001
shall comply with the provisions of GJB150.6 and product specifications. 3.13.7 Shock
After the equipment has been subjected to the post-peak sawtooth wave shock test specified in Table 2 and Table 3 of GJB150.18, its appearance and structure shall comply with the provisions of Article 3.4 and Article 3.5 respectively, and it shall be able to work normally. 3.13.8 Vibration
After the equipment has been subjected to the vibration test specified in Article 2.3.4 or Article 2.3.5 of GJB150.16, its appearance, structure and main performance characteristics shall comply with the provisions of Article 3.4, Article 3.5 and the product specifications respectively. 3.13.9 Damp Heat
After the equipment has been left for 120 hours at a temperature of 30-60℃ and a relative humidity of 95%, its appearance, structure and insulation resistance shall comply with the provisions of Article 3.4, Article 3.5 and Table 2 respectively, and it shall be able to work normally. 3.13.10 Bacteria
After the equipment has been subjected to the bacteria test in 4.7.10.10, its length, grade and main performance characteristics shall comply with the provisions of the product specification. 3.13.11 Salt spray
After the equipment has been subjected to the salt spray test specified in Table 4, its appearance and structure shall comply with the provisions of 3.4 and 3.5 respectively, and it shall be able to work normally.
Salt solution
Concentration%
Weight ratio
3.13.12 Low pressure
Salt spray settling rate
ml/80cm2.h
(average value over 16h)
shall comply with the provisions of GJB150.2 and product specifications. 3.14 Loadability
Test temperature
Salt spray treatment method
Spray for 24 hours, dry for 24 hours under normal test atmospheric conditions, which constitutes one cycle.
Continuous spray
Test time
The reliability of the equipment is expressed by the mean time between failures (MTBF), and its MTBF lower limit value6 should not be less than 3000h. 3.15 Maintainability
The maintainability design of the equipment shall comply with the provisions of GJB368A. Its maintainability index requirements are specified by the product specifications. 4 Quality assurance regulations
4.1 Inspection responsibility
Unless otherwise specified in the contract or order, the contractor shall be responsible for completing all inspections specified in this specification. If necessary, the ordering party or the superior appraisal agency has the right to inspect any inspection item described in the specification. 4.1.1 Qualified responsibilities
All products must meet all requirements of Chapter 3 and Chapter 5 of this specification. The inspections specified in this specification shall become an integral part of the contractor's entire inspection system or quality program. If the contract includes inspection requirements not specified in this specification, the contractor shall also ensure that the products submitted for acceptance meet the requirements of the contract. Quality consistency sampling does not allow the submission of products that are known to be defective, nor does it allow the ordering party to accept defective products.
4.2 Inspection classification
The inspections specified in this specification are divided into:
Identification inspection:
Quality consistency inspection.
Inspection conditions
SJ20799—2001
Unless otherwise specified, all inspections specified in this specification shall be carried out under the following standard atmospheric conditions for testing: Temperature: 15℃~35°C:
Relative humidity: 20%~80%:
Atmospheric pressure: atmospheric pressure of the test site.
Identification inspection
Identification inspection is generally carried out when the product design and production are finalized, but identification inspection should also be carried out when there are major changes in the main design, process, components and materials of the product, which affect the important performance of the product and make the original identification conclusion no longer valid. Identification inspection should be carried out in a laboratory approved by the ordering party or the superior identification agency. 4.4.1
Number of samples
The number of samples for identification inspection should generally not be less than 5. For samples of more than 5 units, they can be tested in groups, and the test items for each group are specified by the product specifications.
4.4.2 Inspection items
Identification inspection items shall be in accordance with the provisions of Table 5.
Appearance quality
Logo and code
Performance characteristics
Main performance characteristics
Continuous working time
Safety
Electromagnetic compatibility
Low temperature storage
Low temperature operation
High temperature storage
High temperature operation
Temperature shock
Temperature-height
Alarm,
Quality consistency inspection
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Chapter No.
Test Method
Chapter No.
4.7.10.10
Low Pressure
Reliability
Maintainability
Storage and Packaging
SJ20799—2001
Continued Table 5
Consistency Inspection of Quality Disk
Chapter No.
(1) The symbol “” in the table indicates a mandatory item, “○” indicates an optional item, and “” indicates an unnecessary item.
(2) The safety inspection in Group A inspection does not include the insulation resistance requirement after the damp heat test. Qualification Criteria
When all inspection items meet the requirements of Chapter 3 and Chapter 5, the identification inspection is considered qualified. Test method
Chapter number
4.7.10.11
4.7.10.12
If any inspection item fails to meet the specified requirements, the inspection shall be suspended. The contractor shall analyze the unqualified items, find out the causes of the defects and take corrective measures before continuing to inspect the unqualified items and related items. If all inspection items meet the specified requirements, it is still judged as qualified for the identification inspection; if there is still an item that does not meet the specified requirements after continued inspection, it is judged as unqualified for the identification inspection.
4.4.4 Maintaining the qualification for identification inspection
In order to maintain the qualification for identification inspection, the contractor shall provide product test data or qualification demonstration data as required by the ordering party or the superior identification agency.
4.5 Quality consistency inspection
4.5.1 Inspection grouping
Quality consistency inspection is divided into A, B, C and D group inspections. 4.5.2 Formation of inspection lot
The formation of inspection lot shall comply with the provisions of Article 5.4.6 of GJB179A. 4.5.3 Group A inspection
4.5.3.1 Inspection items
The inspection items of Group A shall comply with the provisions of Table 5.
4.5.3.2 Sampling plan
a, sampling inspection
The sampling inspection of Group A shall be carried out in accordance with the relevant provisions of GJB179A, using a single sampling plan of general inspection level II, and the acceptable quality level (AQL) shall be selected in accordance with the provisions of Table 6. The defect classification shall comply with the provisions of Appendix A and product specifications. Table 6
Defect classification
Major defects
Minor defects
Acceptable quality level (AQL)
b. 100% inspection
SJ20799—2001
A group A inspection is carried out on each submitted product. The failure rate of group A inspection is stipulated by the product specification. 4.5.3.3 Qualification Criteria
According to the inspection results of the samples, if the number of defects is not greater than the qualified judgment number, the product is judged to have passed the Group A inspection, otherwise, it is judged to have failed the Group A inspection.
No fatal defects are allowed in the Group A inspection, otherwise, the product is judged to have failed the Group A inspection. 4.5.3.4 Direct New Inspection
For the batch that fails the Group A inspection, the contractor shall analyze the product, find out the cause of the defect, and take corrective measures before resubmitting it for inspection. The resubmitted batch shall be separated from the new batch, and marked with "resubmitted batch", and stricter inspection shall be adopted. If the re-inspection is qualified, the batch is judged to have passed the Group A inspection: If the re-inspection is still unqualified, the batch is judged to have failed the Group A inspection. 4.5.3.5 Handling of Group A Inspection Samples
If defective products are found in the batch that passes the Group A inspection, the contractor shall be responsible for repairing them and they can be delivered according to the contract or order after they meet the requirements of the product specifications.
4.5.48 Group Inspection
Group B inspection shall be conducted on products of Group A inspection qualified batch. 4.5.4.1 Inspection Items
Group B inspection items shall be in accordance with the provisions of Table 5.
4.5.4.2 Sampling Plan
a. The sampling plan for continuous batches
Group B inspection shall be conducted in accordance with the relevant provisions of GJB179A, and a single sampling plan of special inspection level S-3 shall be adopted. The acceptable quality level (AQL) shall be selected in accordance with the provisions of Table 7. Defect classification shall be in accordance with the provisions of Appendix A and product specifications. Table 7
Defect classification
Serious defects
Minor defects
b. Isolated batch
Acceptable quality level (AQL)
The corresponding limit quality (LQ) value of the isolated batch shall be selected from Table 6-B (Pa=10%) of GJB179A according to the production batch, the inspection level and the acceptable quality level (AQL) corresponding to the continuous batch. The specific values ​​of AQL and LQ shall be specified in the product specification or contract. Defect classification shall be in accordance with the provisions of Appendix A and product specifications. 4.5.4.3 Qualification criteria
According to the inspection results, if the number of defects found is not greater than the qualified judgment number, the Group B inspection is judged to be qualified, otherwise, the Group B inspection is judged to be unqualified.
4.5.4.4 Re-inspection
For batches that fail the Group B inspection, the contractor shall analyze the batch of products, find out the causes of the defects, and take corrective measures before resubmitting for inspection. The resubmitted batches shall be separated from the new batches and marked as "resubmitted batches", and stricter inspection shall be adopted. If the re-inspection is qualified, the batch is judged to have passed the Group B inspection; if the re-inspection is still unqualified, the batch is judged to have failed the Group B inspection. 4.5.4.5 Handling of Group B inspection samples
If defective products are found in the batches that have passed the Group B inspection, the contractor shall be responsible for repairing them and meeting the requirements of the product specifications. After 8
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, they can be delivered according to the contract or order.
4.5.5 Group C inspection
SJ20799—2001
Group C inspection shall be carried out on the products of the Group A and Group B inspection batches. 4.5.5.1 Inspection items
Group C inspection items shall be as specified in Table 5.
4.5.5.2 Sampling plan
Group C sampling inspection shall be carried out in accordance with the relevant provisions of GJB179A, and a one-time sampling plan of special inspection level S--1 shall be adopted. It can be selected according to the acceptance quality level (AQL) as specified in Table 8. Defect classification shall be in accordance with the provisions of Appendix A and product specifications. Table 8
Defect classification
Serious defects
Minor defects
b. Plan 2
Acceptable quality level (AQL)
When the batch is greater than 8 units (sets), one unit shall be selected: when the batch is between 9 and 150 units, two units shall be selected: when the batch is greater than 150 units, three units shall be selected. The qualified judgment number shall be specified by the product specification. Defect classification shall be in accordance with the provisions of Appendix A and product specifications. 4.5.5.3 Qualification judgment
a. Scheme 1
According to the inspection results, if the number of defects found is not greater than the qualified judgment number, the batch of Group C inspection is judged to be qualified. Otherwise, the batch of Group C inspection is judged to be unqualified.
b. Scheme 2
If all inspection items meet the requirements of Chapter 3 and Chapter 5, the batch of Group C inspection is judged to be qualified. Otherwise, the batch of Group C inspection is judged to be unqualified.
Fatal defects are not allowed in Group C inspection. If fatal defects occur, the Group C inspection is judged to be unqualified. 4.5.5.4 Re-inspection
If the sample fails to pass the Group C inspection, the acceptance and delivery of the equipment shall be stopped. The contractor shall notify the qualified appraisal unit of the unqualified situation. After finding out the cause and taking corrective measures, it can be resubmitted for inspection. When resubmitting for inspection, the number of samples shall be increased. All tests or inspections shall be carried out according to the opinions of the re-inspection qualified appraisal unit, or only the unqualified items shall be tested or inspected. If the re-inspection is qualified, the batch is judged to have passed the Group C inspection; if the re-inspection is still unqualified, the unqualified situation should be notified to the qualification appraisal unit.
4.5.5.5 Sample processing
Unless otherwise specified, the contractor shall repair all discovered or potential damages of the samples that have passed the Group C inspection, and after passing the Group A and Group B inspections, they can be delivered according to the contract or order. 4.5.5.6 Inspection cycle
Unless otherwise specified, each submitted batch shall be subject to a Group C inspection, but not less than once a year. When there are major changes in the main design, process, components and raw materials of the equipment that have a major impact on the performance characteristics of the equipment, or when resuming production after a long-term shutdown, a Group C inspection shall also be carried out. 9
4.5.6 Group D inspection
SJ20799—2001
Group D inspection shall be carried out on the products of the batch that have passed the Group A and Group B inspections. 4.5.6.1 Inspection Items
The inspection items of Group D shall be in accordance with the provisions of Table 5.
4.5.6.2 Sampling Plan
The samples for Group D inspection shall be randomly selected from the products of the Group A and Group B inspection qualified batches. The number of samples and the qualified judgment shall be specified by the product specifications.
4.5.6.3 Unqualified
If the sample fails the Group D inspection, the acceptance and delivery of the product shall be stopped. The contractor shall notify the qualified appraisal unit of the unqualified situation. After finding out the cause and taking corrective measures, it can be resubmitted for inspection. If the re-inspection is qualified, the batch of Group D inspection shall be judged to be qualified: if the re-inspection is still unqualified, the unqualified situation shall be notified to the qualified appraisal unit.
4.5.6.4 Handling of Samples
Unless otherwise specified, the contractor shall be responsible for repairing and replacing the parts that have consumed all or most of the design service life of the samples that have passed the Group D inspection, and after passing the Group A and Group B inspections, they can be delivered according to the contract or order. 4.5.6.5 Inspection cycle
The D group inspection cycle shall be determined by negotiation between the ordering party and the contractor. However, when there are major changes in the main design, process, components and raw materials of the product that have a major impact on the performance characteristics of the equipment, the D group inspection should also be carried out. 4.6 Packaging inspection
4.6.1 Inspection items
The packaging items shall be in accordance with the provisions of Table 5.
4.6.2 Number of samples
The sealing and packaging inspection shall be carried out on two samples randomly selected: the packing and marking inspection shall be carried out on samples selected according to the sampling plan for the Group B inspection of the quality consistency inspection.
4.6.3 Qualification criteria
If the sealing and packaging inspection results meet the requirements of Article 5.1, and the packing and marking inspection results meet the requirements of Articles 5.2 and 5.4 respectively, the packaging inspection shall be judged to be qualified.
4.7 Inspection method
4.7.1 Appearance
Inspect the appearance quality of the equipment by visual inspection and hand feeling. 4.7.2 Structure
Inspect the structure of the equipment by visual inspection and hand feeling. 4.7.3 Dimensions
Measure the dimensions of the equipment with measuring tools of corresponding accuracy. 4.7.4 Weight
Weigh the weight of the equipment with a scale of corresponding accuracy. 4.7.5 Marking and code
Inspect the marking and code of the product by visual inspection. 10
-TiKAONiKAca-5. Handling of Group A Inspection Samples
If defective products are found in the batches that have passed the Group A inspection, the contractor shall be responsible for repairing them and delivering them according to the contract or order after they meet the requirements of the product specifications.
4.5.4 Group B Inspection
Group B inspection shall be carried out on the products of the batches that have passed the Group A inspection. 4.5.4.1 Inspection Items
Group B inspection items shall be in accordance with the provisions of Table 5.
4.5.4.2 Sampling Plan
a. The sampling plan for the Group B inspection of consecutive batches
shall be carried out in accordance with the relevant provisions of GJB179A, and a single sampling plan of special inspection level S-3 shall be adopted. The acceptable quality level (AQL) shall be selected in accordance with the provisions of Table 7. The defect classification shall be in accordance with the provisions of Appendix A and the product specifications. Table 7
Defect classification
Serious defects
Minor defects
b. Isolated batch
Acceptable quality level (AQL)
The corresponding limit quality (LQ) value of the isolated batch shall be selected from Table 6-B (Pa=10%) of GJB179A according to the production batch, the inspection level and the acceptable quality level (AQL) corresponding to the continuous batch. The specific values ​​of AQL and LQ shall be specified in the product specification or contract. Defect classification shall be in accordance with the provisions of Appendix A and product specifications. 4.5.4.3 Qualification criteria
According to the inspection results, if the number of defects found is not greater than the qualified judgment number, the Group B inspection is judged to be qualified, otherwise, the Group B inspection is judged to be unqualified.
4.5.4.4 Re-inspection
For batches that fail the Group B inspection, the contractor shall analyze the batch of products, find out the causes of the defects, and take corrective measures before resubmitting for inspection. The resubmitted batches shall be separated from the new batches and marked as "resubmitted batches", and stricter inspection shall be adopted. If the re-inspection is qualified, the batch is judged to have passed the Group B inspection; if the re-inspection is still unqualified, the batch is judged to have failed the Group B inspection. 4.5.4.5 Handling of Group B inspection samples
If defective products are found in the batches that have passed the Group B inspection, the contractor shall be responsible for repairing them and meeting the requirements of the product specifications. After 8
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, they can be delivered according to the contract or order.
4.5.5 Group C inspection
SJ20799—2001
Group C inspection shall be carried out on the products of the Group A and Group B inspection batches. 4.5.5.1 Inspection items
Group C inspection items shall be as specified in Table 5.
4.5.5.2 Sampling plan
Group C sampling inspection shall be carried out in accordance with the relevant provisions of GJB179A, and a one-time sampling plan of special inspection level S--1 shall be adopted. It can be selected according to the acceptance quality level (AQL) as specified in Table 8. Defect classification shall be in accordance with the provisions of Appendix A and product specifications. Table 8
Defect classification
Serious defects
Minor defects
b. Plan 2
Acceptable quality level (AQL)
When the batch is greater than 8 units (sets), one unit shall be selected: when the batch is between 9 and 150 units, two units shall be selected: when the batch is greater than 150 units, three units shall be selected. The qualified judgment number shall be specified by the product specification. Defect classification shall be in accordance with the provisions of Appendix A and product specifications. 4.5.5.3 Qualification judgment
a. Scheme 1
According to the inspection results, if the number of defects found is not greater than the qualified judgment number, the batch of Group C inspection is judged to be qualified. Otherwise, the batch of Group C inspection is judged to be unqualified.
b. Scheme 2
If all inspection items meet the requirements of Chapter 3 and Chapter 5, the batch of Group C inspection is judged to be qualified. Otherwise, the batch of Group C inspection is judged to be unqualified.
Fatal defects are not allowed in Group C inspection. If fatal defects occur, the Group C inspection is judged to be unqualified. 4.5.5.4 Re-inspection
If the sample fails to pass the Group C inspection, the acceptance and delivery of the equipment shall be stopped. The contractor shall notify the qualified appraisal unit of the unqualified situation. After finding out the cause and taking corrective measures, it can be resubmitted for inspection. When resubmitting for inspection, the number of samples shall be increased. All tests or inspections shall be carried out according to the opinions of the re-inspection qualified appraisal unit, or only the unqualified items shall be tested or inspected. If the re-inspection is qualified, the batch is judged to have passed the Group C inspection; if the re-inspection is still unqualified, the unqualified situation should be notified to the qualification appraisal unit.
4.5.5.5 Sample processing
Unless otherwise specified, the contractor shall repair all discovered or potential damages of the samples that have passed the Group C inspection, and after passing the Group A and Group B inspections, they can be delivered according to the contract or order. 4.5.5.6 Inspection cycle
Unless otherwise specified, each submitted batch shall be subject to a Group C inspection, but not less than once a year. When there are major changes in the main design, process, components and raw materials of the equipment that have a major impact on the performance characteristics of the equipment, or when resuming production after a long-term shutdown, a Group C inspection shall also be carried out. 9
4.5.6 Group D inspection
SJ20799—2001
Group D inspection shall be carried out on the products of the batch that have passed the Group A and Group B inspections. 4.5.6.1 Inspection Items
The inspection items of Group D shall be in accordance with the provisions of Table 5.
4.5.6.2 Sampling Plan
The samples for Group D inspection shall be randomly selected from the products of the Group A and Group B inspection qualified batches. The number of samples and the qualified judgment shall be specified by the product specifications.
4.5.6.3 Unqualified
If the sample fails the Group D inspection, the acceptance and delivery of the product shall be stopped. The contractor shall notify the qualified appraisal unit of the unqualified situation. After finding out the cause and taking corrective measures, it can be resubmitted for inspection. If the re-inspection is qualified, the batch of Group D inspection shall be judged to be qualified: if the re-inspection is still unqualified, the unqualified situation shall be notified to the qualified appraisal unit.
4.5.6.4 Handling of Samples
Unless otherwise specified, the contractor shall be responsible for repairing and replacing the parts that have consumed all or most of the design service life of the samples that have passed the Group D inspection, and after passing the Group A and Group B inspections, they can be delivered according to the contract or order. 4.5.6.5 Inspection cycle
The D group inspection cycle shall be determined by negotiation between the ordering party and the contractor. However, when there are major changes in the main design, process, components and raw materials of the product that have a major impact on the performance characteristics of the equipment, the D group inspection should also be carried out. 4.6 Packaging inspection
4.6.1 Inspection items
The packaging items shall be in accordance with the provisions of Table 5.
4.6.2 Number of samples
The sealing and packaging inspection shall be carried out on two samples randomly selected: the packing and marking inspection shall be carried out on samples selected according to the sampling plan for the Group B inspection of the quality consistency inspection.
4.6.3 Qualification criteria
If the sealing and packaging inspection results meet the requirements of Article 5.1, and the packing and marking inspection results meet the requirements of Articles 5.2 and 5.4 respectively, the packaging inspection shall be judged to be qualified.
4.7 Inspection method
4.7.1 Appearance
Inspect the appearance quality of the equipment by visual inspection and hand feeling. 4.7.2 Structure
Inspect the structure of the equipment by visual inspection and hand feeling. 4.7.3 Dimensions
Measure the dimensions of the equipment with measuring tools of corresponding accuracy. 4.7.4 Weight
Weigh the weight of the equipment with a scale of corresponding accuracy. 4.7.5 Marking and code
Inspect the marking and code of the product by visual inspection. 10
-TiKAONiKAca-5. Handling of Group A Inspection Samples
If defective products are found in the batches that have passed the Group A inspection, the contractor shall be responsible for repairing them and delivering them according to the contract or order after they meet the requirements of the product specifications.
4.5.4 Group B Inspection
Group B inspection shall be carried out on the products of the batches that have passed the Group A inspection. 4.5.4.1 Inspection Items
Group B inspection items shall be in accordance with the provisions of Table 5.
4.5.4.2 Sampling Plan
a. The sampling plan for the Group B inspection of consecutive batches
shall be carried out in accordance with the relevant provisions of GJB179A, and a single sampling plan of special inspection level S-3 shall be adopted. The acceptable quality level (AQL) shall be selected in accordance with the provisions of Table 7. The defect classification shall be in accordance with the provisions of Appendix A and the product specifications. Table 7
Defect classification
Serious defects
Minor defects
b. Isolated batch
Acceptable quality level (AQL)
The corresponding limit quality (LQ) value of the isolated batch shall be selected from Table 6-B (Pa=10%) of GJB179A according to the production batch, the inspection level and the acceptable quality level (AQL) corresponding to the continuous batch. The specific values ​​of AQL and LQ shall be specified in the product specification or contract. Defect classification shall be in accordance with the provisions of Appendix A and product specifications. 4.5.4.3 Qualification criteria
According to the inspection results, if the number of defects found is not greater than the qualified judgment number, the Group B inspection is judged to be qualified, otherwise, the Group B inspection is judged to be unqualified.
4.5.4.4 Re-inspection
For batches that fail the Group B inspection, the contractor shall analyze the batch of products, find out the causes of the defects, and take corrective measures before resubmitting for inspection. The resubmitted batches shall be separated from the new batches and marked as "resubmitted batches", and stricter inspection shall be adopted. If the re-inspection is qualified, the batch is judged to have passed the Group B inspection; if the re-inspection is still unqualified, the batch is judged to have failed the Group B inspection. 4.5.4.5 Handling of Group B inspection samples
If defective products are found in the batches that have passed the Group B inspection, the contractor shall be responsible for repairing them and meeting the requirements of the product specifications. After 8
TiiKAONiKAca-
, they can be delivered according to the contract or order.
4.5.5 Group C inspection
SJ20799—2001
Group C inspection shall be carried out on the products of the Group A and Group B inspection batches. 4.5.5.1 Inspection items
Group C inspection items shall be as specified in Table 5.
4.5.5.2 Sampling plan
Group C sampling inspection shall be carried out in accordance with the relevant provisions of GJB179A, and a one-time sampling plan of special inspection level S--1 shall be adopted. It can be selected according to the acceptance quality level (AQL) as specified in Table 8. Defect classification shall be in accordance with the provisions of Appendix A and product specifications. Table 8
Defect classification
Serious defects
Minor defects
b. Plan 2
Acceptable quality level (AQL)
When the batch is greater than 8 units (sets), one unit shall be selected: when the batch is between 9 and 150 units, two units shall be selected: when the batch is greater than 150 units, three units shall be selected. The qualified judgment number shall be specified by the product specification. Defect classification shall be in accordance with the provisions of Appendix A and product specifications. 4.5.5.3 Qualification judgment
a. Scheme 1
According to the inspection results, if the number of defects found is not greater than the qualified judgment number, the batch of Group C inspection is judged to be qualified. Otherwise, the batch of Group C inspection is judged to be unqualified.
b. Scheme 2
If all inspection items meet the requirements of Chapter 3 and Chapter 5, the batch of Group C inspection is judged to be qualified. Otherwise, the batch of Group C inspection is judged to be unqualified.
Fatal defects are not allowed in Group C inspection. If fatal defects occur, the Group C inspection is judged to be unqualified. 4.5.5.4 Re-inspection
If the sample fails to pass the Group C inspection, the acceptance and delivery of the equipment shall be stopped. The contractor shall notify the qualified appraisal unit of the unqualified situation. After finding out the cause and taking corrective measures, it can be resubmitted for inspection. When resubmitting for inspection, the number of samples shall be increased. All tests or inspections shall be carried out according to the opinions of the re-inspection qualified appraisal unit, or only the unqualified items shall be tested or inspected. If the re-inspection is qualified, the batch is judged to have passed the Group C inspection; if the re-inspection is still unqualified, the unqualified situation should be notified to the qualification appraisal unit.
4.5.5.5 Sample processing
Unless otherwise specified, the contractor shall repair all discovered or potential damages of the samples that have passed the Group C inspection, and after passing the Group A and Group B inspections, they can be delivered according to the contract or order. 4.5.5.6 Inspection cycle
Unless otherwise specified, each submitted batch shall be subject to a Group C inspection, but not less than once a year. When there are major changes in the main design, process, components and raw materials of the equipment that have a major impact on the performance characteristics of the equipment, or when resuming production after a long-term shutdown, a Group C inspection shall also be carried out. 9
4.5.6 Group D inspection
SJ20799—2001
Group D inspection shall be carried out on the products of the batch that have passed the Group A and Group B inspections. 4.5.6.1 Inspection Items
The inspection items of Group D shall be in accordance with the provisions of Table 5.
4.5.6.2 Sampling Plan
The samples for Group D inspection shall be randomly selected from the products of the Group A and Group B inspection qualified batches. The number of samples and the qualified judgment shall be specified by the product specifications.
4.5.6.3 Unqualified
If the sample fails the Group D inspection, the acceptance and delivery of the product shall be stopped. The contractor shall notify the qualified appraisal unit of the unqualified situation. After finding out the cause and taking corrective measures, it can be resubmitted for inspection. If the re-inspection is qualified, the batch of Group D inspection shall be judged to be qualified: if the re-inspection is still unqualified, the unqualified situation shall be notified to the qualified appraisal unit.
4.5.6.4 Handling of Samples
Unless otherwise specified, the contractor shall be responsible for repairing and replacing the parts that have consumed all or most of the design service life of the samples that have passed the Group D inspection, and after passing the Group A and Group B inspections, they can be delivered according to the contract or order. 4.5.6.5 Inspection cycle
The D group inspection cycle shall be determined by negotiation between the ordering party and the contractor. However, when there are major changes in the main design, process, components and raw materials of the product that have a major impact on the performance characteristics of the equipment, the D group inspection should also be carried out. 4.6 Packaging inspection
4.6.1 Inspection items
The packaging items shall be in accordance with the provisions of Table 5.
4.6.2 Number of samples
The sealing and packaging inspection shall be carried out on two samples randomly selected: the packing and marking inspection shall be carried out on samples selected according to the sampling plan for the Group B inspection of the quality consistency inspection.
4.6.3 Qualification criteria
If the sealing and packaging inspection results meet the requirements of Article 5.1, and the packing and marking inspection results meet the requirements of Articles 5.2 and 5.4 respectively, the packaging inspection shall be judged to be qualified.
4.7 Inspection method
4.7.1 Appearance
Inspect the appearance quality of the equipment by visual inspection and hand feeling. 4.7.2 Structure
Inspect the structure of the equipment by visual inspection and hand feeling. 4.7.3 Dimensions
Measure the dimensions of the equipment with measuring tools of corresponding accuracy. 4.7.4 Weight
Weigh the weight of the equipment with a scale of corresponding accuracy. 4.7.5 Marking and code
Inspect the marking and code of the product by visual inspection. 10
-TiKAONiKAca-4 Re-inspection
For batches that fail the Group B inspection, the manufacturer shall analyze the batch of products, find out the causes of defects, and take corrective measures before resubmitting for inspection. The resubmitted batch shall be separated from the new batch, marked with "resubmitted batch", and stricter inspection shall be adopted. If the re-inspection is qualified, the batch is judged to have passed the Group B inspection; if the re-inspection is still unqualified, the batch is judged to have failed the Group B inspection. 4.5.4.5 Handling of Group B inspection samples
If defective products are found in the batches that pass the Group B inspection, the manufacturer shall be responsible for repairing them and meeting the requirements of the product specifications. After that, they can be delivered according to the contract or order.
4.5.5 Group C inspection
SJ20799—2001
Group C inspection shall be carried out on the products of the batches that pass the Group A and Group B inspections. 4.5.5.1 Inspection Items
The inspection items of Group C shall be in accordance with the provisions of Table 5.
4.5.5.2 Sampling Plan
The sampling inspection of Group C shall be carried out in accordance with the relevant provisions of GJB179A, and a one-time sampling plan of special inspection level S--1 shall be adopted. The acceptance quality level (AQL) can be selected in accordance with the provisions of Table 8. The defect classification shall be in accordance with the provisions of Appendix A and product specifications. Table 8
Defect Classification
Serious Defects
Minor Defectsbzxz.net
b. Plan 2
Acceptable Quality Level (AQL)
When the batch is greater than 8 units (sets), one unit shall be selected: when the batch is between 9 and 150 units, two units shall be selected: when the batch is greater than 150 units, three units shall be selected. The qualified judgment number shall be specified by the product specification. The defect classification shall be in accordance with the provisions of Appendix A and product specifications. 4.5.5.3 Qualification judgment
a. Scheme 1
According to the inspection results, if the number of defects found is not greater than the qualified judgment number, the batch of Group C inspection is judged to be qualified. Otherwise, the batch of Group C inspection is judged to be unqualified.
b. Scheme 2
If all inspection items meet the requirements of Chapter 3 and Chapter 5, the batch of Group C inspection is judged to be qualified. Otherwise, the batch of Group C inspection is judged to be unqualified.
Fatal defects are not allowed in Group C inspection. If fatal defects occur, the Group C inspection is judged to be unqualified. 4.5.5.4 Re-inspection
If the sample fails to pass the Group C inspection, the acceptance and delivery of the equipment shall be stopped. The contractor shall notify the qualified appraisal unit of the unqualified situation. After finding out the cause and taking corrective measures, it can be resubmitted for inspection. When resubmitting for inspection, the number of samples shall be increased. All tests or inspections shall be carried out according to the opinions of the re-inspection qualified appraisal unit, or only the unqualified items shall be tested or inspected. If the re-inspection is qualified, the batch is judged to have passed the Group C inspection; if the re-inspection is still unqualified, the unqualified situation should be notified to the qualification appraisal unit.
4.5.5.5 Sample processing
Unless otherwise specified, the contractor shall repair all discovered or potential damages of the samples that have passed the Group C inspection, and after passing the Group A and Group B inspections, they can be delivered according to the contract or order. 4.5.5.6 Inspection cycle
Unless otherwise specified, each submitted batch shall be subject to a Group C inspection, but not less than once a year. When there are major changes in the main design, process, components and raw materials of the equipment that have a major impact on the performance characteristics of the equipment, or when resuming production after a long-term shutdown, a Group C inspection shall also be carried out. 9
4.5.6 Group D inspection
SJ20799—2001
Group D inspection shall be carried out on the products of the batch that have passed the Group A and Group B inspections. 4.5.6.1 Inspection Items
The inspection items of Group D shall be in accordance with the provisions of Table 5.
4.5.6.2 Sampling Plan
The samples for Group D inspection shall be randomly selected from the products of the Group A and Group B inspection qualified batches. The number of samples and the qualified judgment shall be specified by the product specifications.
4.5.6.3 Unqualified
If the sample fails the Group D inspection, the acceptance and delivery of the product shall be stopped. The contractor shall notify the qualified appraisal unit of the unqualified situation. After finding out the cause and taking corrective measures, it can be resubmitted for inspection. If the re-inspection is qualified, the batch of Group D inspection shall be judged to be qualified: if the re-inspection is still unqualified, the unqualified situation shall be notified to the qualified appraisal unit.
4.5.6.4 Handling of Samples
Unless otherwise specified, the contractor shall be responsible for repairing and replacing the parts that have consumed all or most of the design service life of the samples that have passed the Group D inspection, and after passing the Group A and Group B inspections, they can be delivered according to the contract or order. 4.5.6.5 Inspection cycle
The D group inspection cycle shall be determined by negotiation between the ordering party and the contractor. However, when there are major changes in the main design, process, components and raw materials of the product that have a major impact on the performance characteristics of the equipment, the D group inspection should also be carried out. 4.6 Packaging inspection
4.6.1 Inspection items
The packaging items shall be in accordance with the provisions of Table 5.
4.6.2 Number of samples
The sealing and packaging inspection shall be carried out on two samples randomly selected: the packing and marking inspection shall be carried out on samples selected according to the sampling plan for the Group B inspection of the quality consistency inspection.
4.6.3 Qualification criteria
If the sealing and packaging inspection results meet the requirements of Article 5.1, and the packing and marking inspection results meet the requirements of Articles 5.2 and 5.4 respectively, the packaging inspection shall be judged to be qualified.
4.7 Inspection method
4.7.1 Appearance
Inspect the appearance quality of the equipment by visual inspection and hand feeling. 4.7.2 Structure
Inspect the structure of the equipment by visual inspection and hand feeling. 4.7.3 Dimensions
Measure the dimensions of the equipment with measuring tools of corresponding accuracy. 4.7.4 Weight
Weigh the weight of the equipment with a scale of corresponding accuracy. 4.7.5 Marking and code
Inspect the marking and code of the product by visual inspection. 10
-TiKAONiKAca-4 Re-inspection
For batches that fail the Group B inspection, the manufacturer shall analyze the batch of products, find out the causes of defects, and take corrective measures before resubmitting for inspection. The resubmitted batch shall be separated from the new batch, marked with "resubmitted batch", and stricter inspection shall be adopted. If the re-inspection is qualified, the batch is judged to have passed the Group B inspection; if the re-inspection is still unqualified, the batch is judged to have failed the Group B inspection. 4.5.4.5 Handling of Group B inspection samples
If defective products are found in the batches that pass the Group B inspection, the manufacturer shall be responsible for repairing them and meeting the requirements of the product specifications. After that, they can be delivered according to the contract or order.
4.5.5 Group C inspection
SJ20799—2001
Group C inspection shall be carried out on the products of the batches that pass the Group A and Group B inspections. 4.5.5.1 Inspection Items
The inspection items of Group C shall be in accordance with the provisions of Table 5.
4.5.5.2 Sampling Plan
The sampling inspection of Group C shall be carried out in accordance with the relevant provisions of GJB179A, and a one-time sampling plan of special inspection level S--1 shall be adopted. The acceptance quality level (AQL) can be selected in accordance with the provisions of Table 8. The defect classification shall be in accordance with the provisions of Appendix A and product specifications. Table 8
Defect Classification
Serious Defects
Minor Defects
b. Plan 2
Acceptable Quality Level (AQL)
When the batch is greater than 8 units (sets), one unit shall be selected: when the batch is between 9 and 150 units, two units shall be selected: when the batch is greater than 150 units, three units shall be selected. The qualified judgment number shall be specified by the product specification. The defect classification shall be in accordance with the provisions of Appendix A and product specifications. 4.5.5.3 Qualification judgment
a. Scheme 1
According to the inspection results, if the number of defects found is not greater than the qualified judgment number, the batch of Group C inspection is judged to be qualified. Otherwise, the batch of Group C inspection is judged to be unqualified.
b. Scheme 2
If all inspection items meet the requirements of Chapter 3 and Chapter 5, the batch of Group C inspection is judged to be qualified. Otherwise, the batch of Group C inspection is judged to be unqualified.
Fatal defects are not allowed in Group C inspection. If fatal defects occur, the Group C inspection is judged to be unqualified. 4.5.5.4 Re-inspection
If the sample fails to pass the Group C inspection, the acceptance and delivery of the equipment shall be stopped. The contractor shall notify the qualified appraisal unit of the unqualified situation. After finding out the cause and taking corrective measures, it can be resubmitted for inspection. When resubmitting for inspection, the number of samples shall be increased. All tests or inspections shall be carried out according to the opinions of the re-inspection qualified appraisal unit, or only the unqualified items shall be tested or inspected. If the re-inspection is qualified, the batch is judged to have passed the Group C inspection; if the re-inspection is still unqualified, the unqualified situation should be notified to the qualification appraisal unit.
4.5.5.5 Sample processing
Unless otherwise specified, the contractor shall repair all discovered or potential damages of the samples that have passed the Group C inspection, and after passing the Group A and Group B inspections, they can be delivered according to the contract or order. 4.5.5.6 Inspection cycle
Unless otherwise specified, each submitted batch shall be subject to a Group C inspection, but not less than once a year. When there are major changes in the main design, process, components and raw materials of the equipment that have a major impact on the performance characteristics of the equipment, or when resuming production after a long-term shutdown, a Group C inspection shall also be carried out. 9
4.5.6 Group D inspection
SJ20799—2001
Group D inspection shall be carried out on the products of the batch that have passed the Group A and Group B inspections. 4.5.6.1 Inspection Items
The inspection items of Group D shall be in accordance with the provisions of Table 5.
4.5.6.2 Sampling Plan
The samples for Group D inspection shall be randomly selected from the products of the Group A and Group B inspection qualified batches. The number of samples and the qualified judgment shall be specified by the product specifications.
4.5.6.3 Unqualified
If the sample fails the Group D inspection, the acceptance and delivery of the product shall be stopped. The contractor shall notify the qualified appraisal unit of the unqualified situation. After finding out the cause and taking corrective measures, it can be resubmitted for inspection. If the re-inspection is qualified, the batch of Group D inspection shall be judged to be qualified: if the re-inspection is still unqualified, the unqualified situation shall be notified to the qualified appraisal unit.
4.5.6.4 Handling of Samples
Unless otherwise specified, the contractor shall be responsible for repairing and replacing the parts that have consumed all or most of the design service life of the samples that have passed the Group D inspection, and after passing the Group A and Group B inspections, they can be delivered according to the contract or order. 4.5.6.5 Inspection cycle
The D group inspection cycle shall be determined by negotiation between the ordering party and the contractor. However, when there are major changes in the main design, process, components and raw materials of the product that have a major impact on the performance characteristics of the equipment, the D group inspection should also be carried out. 4.6 Packaging inspection
4.6.1 Inspection items
The packaging items shall be in accordance with the provisions of Table 5.
4.6.2 Number of samples
The sealing and packaging inspection shall be carried out on two samples randomly selected: the packing and marking inspection shall be carried out on samples selected according to the sampling plan for the Group B inspection of the quality consistency inspection.
4.6.3 Qualification criteria
If the sealing and packaging inspection results meet the requirements of Article 5.1, and the packing and marking inspection results meet the requirements of Articles 5.2 and 5.4 respectively, the packaging inspection shall be judged to be qualified.
4.7 Inspection method
4.7.1 Appearance
Inspect the appearance quality of the equipment by visual inspection and hand feeling. 4.7.2 Structure
Inspect the structure of the equipment by visual inspection and hand feeling. 4.7.3 Dimensions
Measure the dimensions of the equipment with measuring tools of corresponding accuracy. 4.7.4 Weight
Weigh the weight of the equipment with a scale of corresponding accuracy. 4.7.5 Marking and code
Inspect the marking and code of the product by visual inspection. 10
-TiKAONiKAca-6 Inspection cycle
Unless otherwise specified, each submitted batch shall be subject to a Group C inspection, but not less than once a year. Group C inspection shall also be conducted when there are major changes in the main design, process, components and raw materials of the equipment that have a major impact on the performance characteristics of the equipment, or when production is resumed after a long period of suspension. 9
4.5.6 Group D inspection
SJ20799—2001
Group D inspection shall be conducted on products that have passed the Group A and Group B inspections. 4.5.6.1 Inspection items
Group D inspection items shall be in accordance with the provisions of Table 5.
4.5.6.2 Sampling plan
Group D inspection samples shall be randomly selected from the products that have passed the Group A and Group B inspections. The number of samples and the qualified judgment shall be specified by the product specifications.
4.5.6.3 Failure
If the sample fails the Group D inspection, the acceptance and delivery of the product shall be stopped. The contractor shall notify the qualification appraisal unit of the non-conformity. After finding out the reasons and taking corrective measures, the batch may be resubmitted for inspection. If the re-inspection is qualified, the batch is judged to have passed the D group inspection: if the re-inspection is still unqualified, the non-conformity shall be notified to the qualification appraisal unit.
4.5.6.4 Sample handling
Unless otherwise specified, the contractor shall be responsible for repairing and replacing the parts that have consumed all or most of the design service life of the samples that have passed the D group inspection, and after passing the A and B group inspections, they can be delivered according to the contract or order. 4.5.6.5 Inspection cycle
The D group inspection cycle shall be determined by negotiation between the ordering party and the contractor. However, when there are major changes in the main design, process, components and raw materials of the product that have a major impact on the performance characteristics of the equipment, the D group inspection shall also be carried out. 4.6 Packaging inspection
4.6.1 Inspection items
The packaging items shall be in accordance with the provisions of Table 5.
4.6.2 Sample quantity
Sealing and packaging inspection shall be conducted on two samples randomly selected; packing and marking inspection shall be conducted on samples selected according to the sampling plan of Group B inspection for quality consistency inspection.
4.6.3 Qualification criteria
If the sealing and packaging inspection results meet the requirements of Article 5.1, and the packing and marking inspection results meet the requirements of Articles 5.2 and 5.4 respectively, the packaging inspection is deemed qualified.
4.7 Inspection method
4.7.1 Appearance
Inspect the appearance quality of the equipment by v
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