Environmental test methods for oceanographic instruments—Part 8:Change of temperature test
Some standard content:
ICS19.040
National Standard of the People's Republic of China
GB/T32065.8—2020
Environmental test methods for oceanographic instruments-Part 8: Change of temperaturetest2020-11-19Release
State Administration for Market Regulation
National Standardization Administration
Release
2021-06-01Implementation
Foreword
GB/T32065 "Environmental test methods for marine instruments"\ is proposed to be divided into the following parts: Part 1: General principles;
Part 2: Low temperature test;
Part 3: Low temperature storage test;
Part 4: High temperature test;
Part 5: High temperature storage test;
Part 6: Steady humidity test;||t t||Part 7: Cyclic damp heat test;
Part 8: Temperature change test;
Part 9: Mildew growth test;
Part 10: Salt spray test;
Part 11: Impact test;
Part 12: Collision test;
Part 13: Tilt and swing test;
Part 14: Vibration test;
Part 15: Water pressure test;
Part 16: Seawater corrosion test;
Part 17: Temperature-humidity-vibration comprehensive test; Part 18: Biological adhesion test:
Part 19: Immersion test.
This part is Part 8 of GB/T32065. This part was drafted in accordance with the rules given in GB/T1.1-2009. This part was proposed by the Ministry of Natural Resources of the People's Republic of China. This part is under the jurisdiction of the National Technical Committee for Marine Standardization (SAC/TC283) GB/T32065.8—2020
The drafting units of this part are: National Marine Standards and Metrology Center, Institute of Marine Instruments and Meters of Shandong Academy of Sciences, Shenzhen Yourui Testing Technology Co., Ltd.
The main drafters of this standard are: Kong Weixuan, Liu Ning, Liu Shidong, Zhang Qiang, Zhang Chuan, Liu Yong, Fu Xiao, Zhang Keke, Liu Shixuan, Mei Liguang, Song Zheng, Chen Yong.
1) Parts 1 to 7 were published in 2015, and Parts 9, 14 and 15 were published in 2019. 1
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1Scope
Environmental test methods for marine instruments
Part 8: Temperature change test
GB/T32065.8-—2020
This part of GB/T32065 specifies the test requirements, test method selection, step temperature change, rapid temperature change and related information for temperature change test of marine instruments
This part is applicable to assessing or determining the adaptability of marine instruments under temperature change conditions, and can also be used as a reference for temperature change environmental tests of its parts and components.
Normative referenced documents
The following documents are indispensable for the application of this document. For any dated referenced document, only the dated version applies to this document. For any undated referenced document, its latest version (including all amendments) applies to this document. GB/T32065.1-2015 Environmental test methods for marine instruments Part 1: General GB/T32065.2-2015 Environmental test methods for marine instruments Part 2: Low temperature test GB/T32065.4-2015 Environmental test methods for marine instruments Part 4: High temperature test 3 Test requirements
3.1 General requirements
The standard atmospheric conditions for the temperature change test of marine instruments shall be carried out in accordance with the provisions of 4.2 of GB/T32065.1-2015; the installation of test samples shall be carried out in accordance with the provisions of 6.1 of GB/T32065.1-2015; and the test interruption processing shall be carried out in accordance with the provisions of Chapter 7 of GB/T32065.1-2015.
3.2 Test equipment
3.2.1 The test equipment shall comply with the provisions of Chapter 5 of GB/T32065.1-2015. 3.2.2 The test equipment can be two temperature test chambers (rooms) or a multi-chamber temperature shock test chamber (chamber) that meet the test conditions. Unless otherwise specified, when the test sample completes the conversion, the temperature in the test chamber (chamber) shall be restored to the set temperature within 10% of the exposure duration.
3.2.3 The relative humidity in the test chamber (chamber) shall not exceed 50%. 3.2.4 During the test, the test sample shall be close to the center of the test chamber (chamber), and the minimum distance between any surface and the corresponding test chamber (chamber) wall shall be greater than 15cm.
3.2.5 If the mounting frame or connector is tested together with the test sample, its volume shall be included in the test sample volume. When multiple test samples are tested together, in addition to meeting the requirements of 3.2.4, it shall also be ensured that the test samples do not interfere with each other. 3.2.6 The test sample shall not be directly radiated by any heating and cooling elements in the test chamber (chamber). 3.3 Test severity level
3.3.1 Test temperature
Unless otherwise specified, the temperature for the temperature change test of marine instruments shall be selected from the following provisions: l
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GB/T32065.8—2020
Low temperature TA is the minimum operating temperature of the test sample, which shall be implemented in accordance with 3.3 of GB/T32065.2-2015; a)
b)
Low temperature TA2: 2℃;
High temperature TB is the maximum operating temperature of the test sample, which shall be implemented in accordance with 3.3 of GB/T32065.4—2015; d)
High temperature TB2: 20℃.
3.3.2 Exposure duration t
Unless otherwise specified, the exposure duration of the ocean instrument temperature change test shall be selected from the following provisions: a) 1h, applicable to ocean instruments with m<1.5kg; b) 2h, applicable to ocean instruments with 1.5kg≤m<15kg; c) 4h, applicable to ocean instruments with 15kg≤m<150kg d) 8h, applicable to ocean instruments with m≥150kg Note: m is the mass of the test sample.
3.3.3 Conversion time t2
The high and low temperature conversion time t2 shall not exceed 3min. For special test samples, if the conversion cannot be completed within 3min, a conversion time may be added without affecting the test results, but the added time shall be less than 5% of the temperature stabilization time of the test sample. 3.3.4 Test cycles
Unless otherwise specified, the number of cycles of the ocean instrument temperature change test shall be selected from the following provisions: a) 3;
b) 6;
c9.
4 Test method selection
The test methods specified in this part include step temperature change and rapid temperature change. Marine instruments used in weather and water environments should be tested with step temperature change; marine instruments used in high and low temperature atmospheric environments should be tested with rapid temperature change.
5 Test: Step temperature change
5.1 Pretreatment
Place the test sample under standard atmospheric conditions to achieve temperature stability, or conduct the test according to the agreement between the two parties (such as product standards, test outlines or test contracts, etc., the same below). Initial inspection
Perform visual inspection, electrical performance, mechanical performance and other performance inspections on the test sample according to the agreement between the two parties, and record the inspection data in Table A.1 of Appendix A.
5.3 Condition test
5.3.1 The test sample should be placed in a low temperature test box (chamber) that has stabilized to TA without packaging, power supply and preparation for work, and then start the test sample and maintain the exposure duration t1 specified in 3.3.2. And keep the test sample in working condition at each stage of the temperature change test.
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GB/T32065.8-—2020
5.3.2 Take out the test sample from the low temperature test chamber (room), put it into the high temperature test chamber (room) that has stabilized to T (20℃) under standard atmospheric conditions, and maintain the exposure duration t1 specified in 3.3.2. During this period, adjust the temperature in the low temperature test chamber (room) from TAr to TA2 (2℃).
5.3.3 Take out the test sample from the high temperature test chamber (room), put it into the low temperature test chamber (room) that has stabilized to T^2 (2℃) under standard atmospheric conditions, and maintain 3.3.2. During this period, adjust the temperature in the high temperature test chamber (room) from Te (20°C) to TBL.
5.3.4 Take out the test sample from the low temperature test chamber (room), put it into the high temperature test chamber (room) that has been stabilized to TB under standard atmospheric conditions, and maintain the exposure duration t1 specified in 3.3.2. 5.3.5 Take out the test sample from the high temperature test chamber (room), put it into the low temperature test chamber (room) that has been stabilized to T (2°C) under standard atmospheric conditions, and maintain the exposure duration t1 specified in 3.3.2. During this period, adjust the temperature in the high temperature test chamber (room) from T to T (20°C).
5.3.6 Take out the test sample from the low temperature test chamber (room), put it into the high temperature test chamber (room) that has stabilized to T (20℃) under standard atmospheric conditions, and maintain the exposure duration t1 specified in 3.3.2. 5.3.7 Steps 5.3.1 to 5.3.6 are a complete cycle of step-by-step temperature change, as shown in Figure 1. 5.3.8 Continue to carry out subsequent cycle tests according to the number of cycles specified in 3.3.4. 5.3.9 After the last cycle, take out the test sample from the test chamber (room) and recover it. Test temperature/℃
Time small
if-- i -
1 cycle
Figure 1 Schematic diagram of step temperature change
5.4 Intermediate detection
5.4.1 During the conditional test, the test samples shall be subjected to intermediate detection as agreed by both parties to the test, and the detection data shall be recorded in Table A.1. 5.4.2 During the intermediate detection, the test samples shall not be taken out of the test box (chamber) or tested after recovery. 5.4.3 During the conditional test, it is necessary to understand the performance of the test samples at a specific time, but the detection cannot be completed in the test box (chamber). In this case, an additional batch of test samples shall be added for each specific time, and recovery and final detection shall be carried out. 5.5 Recovery
The test samples shall be recovered for a period of time after the conditional test as agreed by both parties to the test, so that the test samples are in the same conditions as those at the initial detection.
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GB/T32065.8—2020
Final test
Perform visual inspection, electrical performance, mechanical performance and other performance tests on the test samples as agreed by the test parties, and compare them with the initial test data, and record the data in Table A.1. 5.7
Related information
When the methods specified in this section are used, the agreement between the test parties should include the following information: pretreatment;
a)
initial test;
b)||tt| |The state of the test sample during the test process; test temperatures TAL, TA2, TH, TR;
d)
Exposure duration t, switching time t2;
Number of cycles;
Intermediate test;
h)
Recovery;
Final test;
Any changes to the test procedure agreed by both parties to the test 6 Test: Rapid temperature change
Preconditioning
Put the test sample under standard atmospheric conditions to allow it to reach temperature stability, or as agreed by both parties to the test. 6.2
Initial test
Perform visual inspection, electrical properties, mechanical properties and other performance tests on the test sample as agreed by both parties to the test, and record the test data in Table A.1.
Conditional test
6.3.1 The test sample shall be placed in a low-temperature test chamber (room) that has stabilized to T^ without packaging, power supply and preparation for work, and then the test sample shall be started and maintained for the exposure duration specified in 3.3.2. The test sample shall be kept in working condition at each stage of the temperature change test.
6.3.2 Take out the test sample from the low-temperature test chamber (room) and place it in a high-temperature test chamber (room) that has stabilized to TB under standard atmospheric conditions, and maintain the exposure duration t1 specified in 3.3.2. 6.3.3 Steps 6.3.1~6.3.2 are a complete cycle of rapid temperature change, as shown in Figure 2. 6.3.4 Continue to carry out subsequent cycle tests according to the number of cycles specified in 3.3.4. 6.3.5 After the last cycle, the test sample shall be restored to room temperature in the high-temperature chamber (room). 4
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6.4 Intermediate testing
1 Test temperature/C
1 ring
Figure 2 Schematic diagram of rapid temperature change
GB/T32065.8—2020
Interval/
6.4.1 During the conditional test, the test samples shall be subjected to intermediate testing as agreed by both parties to the test, and the test data shall be recorded in Table A.1. 6.4.2 During the intermediate testing, the test samples shall not be taken out of the test box (chamber) or tested after recovery. 6.4.3 During the conditional test, if it is necessary to understand the performance of the test samples at a specific time, but the test cannot be completed in the test box (chamber), an additional batch of test samples shall be added for each specific time for recovery and final testing. 6.5 Recovery
The test samples shall be recovered after the conditional test as agreed by both parties to the test, so that the test samples are in the same conditions as the initial test. 6.6 Final test
Perform visual inspection, electrical properties, mechanical properties and other performance tests on the test samples as agreed by the test parties, and compare them with the initial test data, and record the data in Table A.1. 6.7
Related information
When the methods specified in this section are used, the agreement between the test parties should include the following information: a)
Pretreatment;
Initial test:
The state of the test sample during the test process; Test temperature TAI, TBL;
Exposure duration Time t1 conversion time t:
Number of cycles;
Intermediate test;
Recovery;
Final test;
Any changes to the test procedure agreed by both parties to the test rKaeerKAca-
GB/T32065.8—2020
Appendix A
(Normative Appendix)
Test sample test data record sheet
The test sample test data record sheet is used to record the relevant data of the initial test, intermediate test and final test. See Table A.1 for details. Table A.1
Test sample test data record sheet
Test sample information
Test items
Sample model
Low temperature TAI
High temperature Te
Exposure duration!
Number of cycles
Sample characteristics
Description
Name
Initial inspection
Intermediate inspection
Final inspection
Inspector:
Measuring range
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Appearance inspection|| tt||Electrical properties
Mechanical properties
Other properties
Sample name
Sample number
Low temperature TA2
High temperature T floor
Conversion time t:
Main equipment used for testing
Accuracy level
Or maximum allowable error
Test situation
Verifier:
iiKaeeiKAca
Certificate number
Valid until9 After the last cycle, take the test sample out of the test box (chamber) and recover. Test temperature/℃
Time small
if-- i -
1 cycle
Figure 1 Schematic diagram of step temperature change
5.4 Intermediate test
5.4.1 During the conditional test, the test sample shall be tested in the intermediate test according to the agreement between the test parties, and the test data shall be recorded in Table A.1. 5.4.2 During the intermediate test, the test sample shall not be taken out of the test box (chamber) or tested after recovery. 5.4.3 During the conditional test, it is necessary to understand the performance of the test sample at a specific time, but the test cannot be completed in the test box (chamber), then for each specific time, an additional batch of test samples shall be added for recovery and final test. 5.5 Recovery
The test sample shall be recovered for a period of time after the conditional test according to the agreement between the test parties, so that the test sample is in the same condition as the initial test.
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GB/T32065.8—2020
Final test
Perform visual inspection, electrical performance, mechanical performance and other performance tests on the test samples as agreed by the test parties, and compare them with the initial test data, and record the data in Table A.1. 5.7
Related information
When the methods specified in this section are used, the agreement between the test parties should include the following information: pretreatment;
a)
initial test;
b)||tt| |The state of the test sample during the test process; test temperatures TAL, TA2, TH, TR;
d)
Exposure duration t, switching time t2;
Number of cycles;
Intermediate test;
h)
Recovery;
Final test;
Any changes to the test procedure agreed by both parties to the test 6 Test: Rapid temperature change
Preconditioning
Put the test sample under standard atmospheric conditions to allow it to reach temperature stability, or as agreed by both parties to the test. 6.2
Initial test
Perform visual inspection, electrical properties, mechanical properties and other performance tests on the test sample as agreed by both parties to the test, and record the test data in Table A.1.
Conditional test
6.3.1 The test sample shall be placed in a low-temperature test chamber (room) that has stabilized to T^ without packaging, power supply and preparation for work, and then the test sample shall be started and maintained for the exposure duration specified in 3.3.2. The test sample shall be kept in working condition at each stage of the temperature change test.
6.3.2 Take out the test sample from the low-temperature test chamber (room) and place it in a high-temperature test chamber (room) that has stabilized to TB under standard atmospheric conditions, and maintain the exposure duration t1 specified in 3.3.2. 6.3.3 Steps 6.3.1~6.3.2 are a complete cycle of rapid temperature change, as shown in Figure 2. 6.3.4 Continue to carry out subsequent cycle tests according to the number of cycles specified in 3.3.4. 6.3.5 After the last cycle, the test sample shall be restored to room temperature in the high-temperature chamber (room). 4
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6.4 Intermediate testing
1 Test temperature/C
1 ring
Figure 2 Schematic diagram of rapid temperature change
GB/T32065.8—2020
Interval/
6.4.1 During the conditional test, the test samples shall be subjected to intermediate testing as agreed by both parties to the test, and the test data shall be recorded in Table A.1. 6.4.2 During the intermediate testing, the test samples shall not be taken out of the test box (chamber) or tested after recovery. 6.4.3 During the conditional test, if it is necessary to understand the performance of the test samples at a specific time, but the test cannot be completed in the test box (chamber), an additional batch of test samples shall be added for each specific time for recovery and final testing. 6.5 Recovery
The test samples shall be recovered after the conditional test as agreed by both parties to the test, so that the test samples are in the same conditions as the initial test. 6.6 Final test
Perform visual inspection, electrical properties, mechanical properties and other performance tests on the test samples as agreed by the test parties, and compare them with the initial test data, and record the data in Table A.1. 6.7
Related information
When the methods specified in this section are used, the agreement between the test parties should include the following information: a)
Pretreatment;
Initial test:
The state of the test sample during the test process; Test temperature TAI, TBL;
Exposure duration Time t1 conversion time t:
Number of cycles;
Intermediate test;
Recovery;
Final test;
Any changes to the test procedure agreed by both parties to the test rKaeerKAca-
GB/T32065.8—2020
Appendix A
(Normative Appendix)
Test sample test data record sheet
The test sample test data record sheet is used to record the relevant data of the initial test, intermediate test and final test. See Table A.1 for details. Table A.1
Test sample test data record sheet
Test sample information
Test items
Sample model
Low temperature TAI
High temperature Te
Exposure duration!
Number of cycles
Sample characteristics
Description
Name
Initial inspection
Intermediate inspection
Final inspection
Inspector:
Measuring range
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Appearance inspection|| tt||Electrical properties
Mechanical properties
Other properties
Sample name
Sample number
Low temperature TA2
High temperature T floor
Conversion time t:
Main equipment used for testing
Accuracy level
Or maximum allowable error
Test situation
Verifier:
iiKaeeiKAca
Certificate number
Valid until9 After the last cycle, take the test sample out of the test box (chamber) and recover. Test temperature/℃
Time small
if-- i -
1 cycle
Figure 1 Schematic diagram of step-type temperature change
5.4 Intermediate test
5.4.1 During the conditional test, the test sample shall be tested in the intermediate test according to the agreement between the test parties, and the test data shall be recorded in Table A.1. 5.4.2 During the intermediate test, the test sample shall not be taken out of the test box (chamber) or tested after recovery. 5.4.3 During the conditional test, it is necessary to understand the performance of the test sample at a specific time, but the test cannot be completed in the test box (chamber), then for each specific time, an additional batch of test samples shall be added for recovery and final test. 5.5 Recovery
The test sample shall be recovered for a period of time after the conditional test according to the agreement between the test parties, so that the test sample is in the same condition as the initial test.
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Final test
Perform visual inspection, electrical performance, mechanical performance and other performance tests on the test samples as agreed by the test parties, and compare them with the initial test data, and record the data in Table A.1. 5.7
Related information
When the methods specified in this section are used, the agreement between the test parties should include the following information: pretreatment;
a)
initial test;
b)||tt| |The state of the test sample during the test process; test temperatures TAL, TA2, TH, TR;
d)
Exposure duration t, switching time t2;
Number of cycles;
Intermediate test;
h)
Recovery;
Final test;
Any changes to the test procedure agreed by both parties to the test 6 Test: Rapid temperature change
Preconditioning
Put the test sample under standard atmospheric conditions to allow it to reach temperature stability, or as agreed by both parties to the test. 6.2
Initial test
Perform visual inspection, electrical properties, mechanical properties and other performance tests on the test sample as agreed by both parties to the test, and record the test data in Table A.1.
Conditional test
6.3.1 The test sample shall be placed in a low-temperature test chamber (room) that has stabilized to T^ without packaging, power supply and preparation for work, and then the test sample shall be started and maintained for the exposure duration specified in 3.3.2. The test sample shall be kept in working condition at each stage of the temperature change test.
6.3.2 Take out the test sample from the low-temperature test chamber (room) and place it in a high-temperature test chamber (room) that has stabilized to TB under standard atmospheric conditions, and maintain the exposure duration t1 specified in 3.3.2. 6.3.3 Steps 6.3.1~6.3.2 are a complete cycle of rapid temperature change, as shown in Figure 2. 6.3.4 Continue to carry out subsequent cycle tests according to the number of cycles specified in 3.3.4. 6.3.5 After the last cycle, the test sample shall be restored to room temperature in the high-temperature chamber (room). 4
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6.4 Intermediate testing
1 Test temperature/C
1 ring
Figure 2 Schematic diagram of rapid temperature change
GB/T32065.8—2020
Interval/
6.4.1 During the conditional test, the test samples shall be subjected to intermediate testing as agreed by both parties to the test, and the test data shall be recorded in Table A.1. 6.4.2 During the intermediate testing, the test samples shall not be taken out of the test box (chamber) or tested after recovery. 6.4.3 During the conditional test, if it is necessary to understand the performance of the test samples at a specific time, but the test cannot be completed in the test box (chamber), an additional batch of test samples shall be added for each specific time for recovery and final testing. 6.5 Recovery
The test samples shall be recovered after the conditional test as agreed by both parties to the test, so that the test samples are in the same conditions as the initial test. 6.6 Final test
Perform visual inspection, electrical properties, mechanical properties and other performance tests on the test samples as agreed by the test parties, and compare them with the initial test data, and record the data in Table A.1. 6.7
Related information
When the methods specified in this section are used, the agreement between the test parties should include the following information: a)
Pretreatment;
Initial test:
The state of the test sample during the test process; Test temperature TAI, TBL;
Exposure duration Time t1 conversion time t:
Number of cycles;
Intermediate test;
Recovery;
Final test;
Any changes to the test procedure agreed by both parties to the test rKaeerKAca-
GB/T32065.8—2020
Appendix A
(Normative Appendix)
Test sample test data record sheet
The test sample test data record sheet is used to record the relevant data of the initial test, intermediate test and final test. See Table A.1 for details. Table A.1
Test sample test data record sheet
Test sample information
Test items
Sample model
Low temperature TAI
High temperature Te
Exposure duration!
Number of cycles
Sample characteristics
Description
Name
Initial inspection
Intermediate inspection
Final inspection
Inspector:
Measuring range
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Appearance inspection|| tt||Electrical properties
Mechanical properties
Other properties
Sample name
Sample number
Low temperature TA2
High temperature T floor
Conversion time t:
Main equipment used for testing
Accuracy level
Or maximum allowable error
Test situation
Verifier:
iiKaeeiKAca
Certificate number
Valid until2
Initial test
Perform visual inspection, electrical performance, mechanical performance and other performance tests on the test samples according to the agreement between the two parties, and record the test data in Table A.1.
Conditional test
6.3.1 The test samples shall be placed in a low-temperature test chamber (room) that has stabilized to T^ without packaging, power supply and preparation for work, and then start the test samples and maintain the exposure duration specified in 3.3.2. The test samples shall be kept in working condition at all stages of the temperature change test.
6.3.2 Take out the test samples from the low-temperature test chamber (room) and place them in a high-temperature test chamber (room) that has stabilized to TB under standard atmospheric conditions, and maintain the exposure duration t1 specified in 3.3.2. 6.3.3 Steps 6.3.1~6.3.2 are a complete cycle of rapid temperature change, as shown in Figure 2. 6.3.4 Continue to carry out subsequent cycle tests according to the number of cycles specified in 3.3.4. 6.3.5 After the last cycle, the test sample shall be restored to room temperature in the high temperature box (chamber). 4
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6.4 Intermediate test
1 Test temperature/C
1 cycle
Figure 2 Schematic diagram of rapid temperature change
GB/T32065.8—2020
Interval/
6.4.1 During the conditional test, the test sample shall be subjected to intermediate test according to the agreement between the test parties, and the test data shall be recorded in Table A.1. 6.4.2 During the intermediate test, the test sample shall not be taken out of the test box (chamber) or tested after recovery. 6.4.3 During the conditional test, if it is necessary to understand the performance of the test sample at a specific time, but the test cannot be completed in the test box (chamber), an additional batch of test samples shall be added for each specific time for recovery and final test. 6.5 Recovery
The test samples shall be recovered after the conditioning test as agreed by both parties to the test so that the test samples are in the same conditions as during the initial test. 6.6 Final test
As agreed by both parties to the test, the test samples shall be subjected to visual inspection, electrical properties, mechanical properties and other performance tests, and compared with the initial test data, and the data shall be recorded in Table A.1. 6.7
Related information
When the method specified in this section is used, the agreement between the two parties to the test should include the following information: a)
Pretreatment;
Initial test:
The state of the test sample during the test process; Test temperature TAI, TBL;
Exposure duration Time t1 conversion time t:
Number of cycles;
Intermediate test;
Recovery;
Final test;
Any changes to the test procedure agreed by both parties to the test rKaeerKAca-
GB/T32065.8—2020
Appendix A
(Normative Appendix)
Test sample test data record sheet
The test sample test data record sheet is used to record the relevant data of the initial test, intermediate test and final test. See Table A.1 for details. Table A.1
Test sample test data record sheet
Test sample information
Test items
Sample model
Low temperature TAI
High temperature Te
Exposure duration!
Number of cycles
Sample characteristics
Description
Name
Initial inspection
Intermediate inspection
Final inspection
Inspector:
Measuring range
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Appearance inspection|| tt||Electrical properties
Mechanical properties
Other properties
Sample name
Sample number
Low temperature TA2
High temperature T floor
Conversion time t:
Main equipment used for testing
Accuracy level
Or maximum allowable error
Test situation
Verifier:
iiKaeeiKAca
Certificate number
Valid until2
Initial test
Perform visual inspection, electrical performance, mechanical performance and other performance tests on the test samples according to the agreement between the two parties, and record the test data in Table A.1.
Conditional test
6.3.1 The test samples shall be placed in a low-temperature test chamber (room) that has stabilized to T^ without packaging, power supply and preparation for work, and then start the test samples and maintain the exposure duration specified in 3.3.2. The test samples shall be kept in working condition at all stages of the temperature change test.
6.3.2 Take out the test samples from the low-temperature test chamber (room) and place them in a high-temperature test chamber (room) that has stabilized to TB under standard atmospheric conditions, and maintain the exposure duration t1 specified in 3.3.2. 6.3.3 Steps 6.3.1~6.3.2 are a complete cycle of rapid temperature change, as shown in Figure 2. 6.3.4 Continue to carry out subsequent cycle tests according to the number of cycles specified in 3.3.4. 6.3.5 After the last cycle, the test sample shall be restored to room temperature in the high temperature box (chamber). 4
rKaeerKAca-
6.4 Intermediate testing
1 Test temperature/C
1 cycle
Figure 2 Schematic diagram of rapid temperature change
GB/T32065.8—2020
Interval/
6.4.1 During the conditional test, the test sample shall be tested in the intermediate test according to the agreement between the test parties, and the test data shall be recorded in Table A.1. 6.4.2 During the intermediate test, the test sample shall not be taken out of the test box (chamber) or tested after recovery. 6.4.3 During the conditional test, if it is necessary to understand the performance of the test sample at a specific time, but the test cannot be completed in the test box (chamber), an additional batch of test samples shall be added for each specific time for recovery and final testing. 6.5 RecoverywwW.bzxz.Net
The test samples shall be recovered after the conditioning test as agreed by both parties to the test so that the test samples are in the same conditions as during the initial test. 6.6 Final test
As agreed by both parties to the test, the test samples shall be subjected to visual inspection, electrical properties, mechanical properties and other performance tests, and compared with the initial test data, and the data shall be recorded in Table A.1. 6.7
Related information
When the methods specified in this section are used, the agreement between the two parties to the test should include the following information: a)
Pretreatment;
Initial test:
The state of the test sample during the test process; Test temperature TAI, TBL;
Exposure duration Time t1 conversion time t:
Number of cycles;
Intermediate test;
Recovery;
Final test;
Any changes to the test procedure agreed by both parties to the test rKaeerKAca-
GB/T32065.8—2020
Appendix A
(Normative Appendix)
Test sample test data record sheet
The test sample test data record sheet is used to record the relevant data of the initial test, intermediate test and final test. See Table A.1 for details. Table A.1
Test sample test data record sheet
Test sample information
Test items
Sample model
Low temperature TAI
High temperature Te
Exposure duration!
Number of cycles
Sample characteristics
Description
Name
Initial inspection
Intermediate inspection
Final inspection
Inspector:
Measuring range
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Appearance inspection|| tt||Electrical properties
Mechanical properties
Other properties
Sample name
Sample number
Low temperature TA2
High temperature T floor
Conversion time t:
Main equipment used for testing
Accuracy level
Or maximum allowable error
Test situation
Verifier:
iiKaeeiKAca
Certificate number
Valid until1
Test sample test data record table
Test sample information
Test items
Sample model
Low temperature TAI
High temperature Te
Exposure duration!
Number of cycles
Sample characteristics
Description
Name
Initial test
Intermediate test
Final test
Tester:
Measuring range
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Appearance inspection|| tt||Electrical properties
Mechanical properties
Other properties
Sample name
Sample number
Low temperature TA2
High temperature T floor
Conversion time t:
Main equipment used for testing
Accuracy level
Or maximum allowable error
Test situation
Verifier:
iiKaeeiKAca
Certificate number
Valid until1
Test sample test data record table
Test sample information
Test items
Sample model
Low temperature TAI
High temperature Te
Exposure duration!
Number of cycles
Sample characteristics
Description
Name
Initial test
Intermediate test
Final test
Tester:
Measuring range
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Appearance inspection|| tt||Electrical properties
Mechanical properties
Other properties
Sample name
Sample number
Low temperature TA2
High temperature T floor
Conversion time t:
Main equipment used for testing
Accuracy level
Or maximum allowable error
Test situation
Verifier:
iiKaeeiKAca
Certificate number
Valid until
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