GB/T 32065.10-2020.Environmental test methods for oceanographic instruments-Part 10:Salt fog test.
1 Scope
This part of GB/T 32065 specifies the test requirements, test procedures and related information for salt fog test of oceanographic instruments and components.
GB/T 32065.10 is applicable to the assessment of the ability of oceanographic instruments and components to resist salt fog corrosion and the impact of salt fog on the performance and functions of oceanographic instruments and components.
2 Normative references
The following documents are indispensable for the application of this document. For all dated references, only the dated version applies to this document. For all undated references, the latest version (including all amendments) applies to this document.
GB/T 32065.1-2015 Environmental test methods for marine instruments Part 1: General
GB/T 32065.6-2015 Environmental test methods for marine instruments Part 6: Steady-state humidity and heat test
3 Test requirements
3.1 General requirements
The standard atmospheric conditions of this part shall be carried out in accordance with the provisions of 4.2 of GB/T 32065.1-2015.
3.2 Test equipment
3.2.1 The test equipment shall comply with the provisions of Chapter 5 of GB/T 32065.1-2015.
3.2.2 The test equipment shall be a combination of a salt spray test chamber (room), a humidity and heat test chamber (room) or a compound salt spray test chamber (room), and a drying oven that meet the test requirements.
3.2.3 The damp heat test chamber (room) shall comply with the provisions of 3.2 of GB/T 32065.6-2015.
3.2.4 The compound salt spray test chamber (room) shall meet the requirements of 3.2 of GB/T 32065.6-2015 when conducting damp heat tests.
3.2.5 The drying oven shall be able to provide a dry environment of (40±2)°C.
3.3 Test conditions
3.3.1
Salt solution
This test uses sodium chloride (chemically pure or above) and distilled water to prepare a salt solution with a concentration of 4.9%~5.1% (mass fraction). The pH of the salt solution at 35°C should be between 6.5 and 7.2, which can be measured with a pH meter or precision pH test paper. The pH value of the salt solution can be adjusted with dilute hydrochloric acid or sodium hydroxide of chemically pure or above.
3.3.2 Test temperature and test humidity
The test temperature in the spray phase is (35±2)°C; the test temperature in the wet heat phase is (40±2)°C, and the relative humidity is (93±3)%.
This part specifies the test requirements, test procedures and related information for the salt spray test of marine instruments and components. This part is applicable to the assessment of the ability of marine instruments and components to resist salt spray corrosion and the impact of salt spray on the performance and function of marine instruments and components.

ICS19.040
National Standard of the People's Republic of China
GB/T32065.10—2020
Environmental test methods for oceanographic instruments-Part 10:Salt fog test
2020-11-19 Release
State Administration for Market Regulation
National Standardization Administration
Release
2021-06-01 Implementation
Foreword
GB/T32065 "Environmental test methods for marine instruments" 1 is intended to be divided into the following parts: Part 1: General;
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;||tt| |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 10 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/T32065.10—2020
The drafting units of this part are: National Marine Standards and Metrology Center, Shenzhen Yourui Testing Technology Co., Ltd., and Institute of Marine Instruments and Meters of Shandong Academy of Sciences.
The main drafters of this part are: Liu Shidong, Kong Weixuan, Liu Ning, Zhang Qiang, Zhang Xiaohui, Mei Liguang, Chu Dongzhi, Liu Yong, Kong Xiangfeng, Liu Yan, Song Zheng, and Chen Yong.
1) Parts 1 to 7 were published in 2015, and Parts 9, 14, and 15 were published in 2019. SAC
1 Scope
Environmental test methods for marine instruments
Part 10: Salt spray test
GB/T32065.10—2020
This part of GB/T32065 specifies the test requirements, test procedures and related information for salt spray tests on marine instruments and components. This part is applicable to the assessment of the ability of marine instruments and components to resist salt spray corrosion and the impact of salt spray on the performance and functions of marine instruments and components. Normative references
The following documents are essential 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/T32065.6—2015 Environmental test methods for marine instruments Part 6: Steady-state damp heat test 3 Test requirements
3.1 General requirements
The standard atmospheric conditions of this part shall be carried out in accordance with the provisions of 4.2 in GB/T32065.1-2015. 3.2 Test equipment
3.2.1 The test equipment shall comply with the provisions of Chapter 5 in GB/T32065.1-2015. 3.2.2 The test equipment shall be a combination of a salt spray test chamber (chamber), a damp heat test chamber (chamber) or a composite salt spray test chamber (chamber), and a drying oven that meet the test requirements
3.2.3 The damp heat test chamber (chamber) shall comply with the provisions of 3.2 in GB/T32065.6-2015. 3.2.4 The compound salt spray test chamber (room) shall meet the requirements of 3.2 in GB/T32065.6-2015 when conducting the wet heat test. 3.2.5 The drying oven shall be able to provide a dry environment of (40 ± 2) °C 3.3 Test conditions
3.3.1 Salt solution
This test uses sodium chloride (chemically pure or above) and distilled water to prepare a salt solution with a concentration of 4.9% to 5.1% (mass fraction). The pH of the salt solution at 35 °C should be between 6.5 and 7.2, which can be measured with a pH meter or precision pH test paper. The pH value of the salt solution can be adjusted with dilute hydrochloric acid or sodium hydroxide of chemically pure or above. 3.3.2 Test temperature and test humidity
The test temperature in the spray stage is (35 ± 2) °C; the test temperature in the wet heat stage is (40 ± 2) °C, and the relative humidity is (93 ± 3)%. 3.3.3 Sedimentation rate
Adjust the sedimentation rate of salt spray so that the collector collects 1mL/h~2mL/h in a horizontal collection area with an area of ??80cm2 at any position in the effective space of the salt spray test chamber (room) or the composite salt spray test chamber (room). 3.3.4 Test cycle
A standard test cycle of this test is 24h, first 8h of spraying, and then 16h of wet heat storage. Unless otherwise specified, the number of cycles of the salt spray test is selected from the following values: a) 2;
b) 4;
c) 6;
d) 10.
If only appearance inspection is carried out, the test cycle and result description can be selected according to the material of the sample, see Table A.1 in Appendix A; if appearance inspection and performance testing are carried out at the same time, the test cycle and result description can be seen in Table A.2. 3.4 Test interruption
The requirements for test interruption can be found in Chapter 7 of GB/T32065.1-2015. 4 Test process
4.1 Test preparation
4.1.1 Pretreatment of test samples
The test samples should be cleaned before the test. The cleaned test samples should not affect the test results of the salt spray test. 4.1.2 Operation inspection of salt spray test chamber
Before the test starts, adjust the temperature, sedimentation rate and other test parameters of the salt spray test chamber (chamber) or composite salt spray test chamber (chamber) in the spray stage under no-load conditions to meet the requirements of this test and maintain this test condition for at least 24 hours. 4.2 Initial test
Before the test begins, the test samples shall be visually inspected and (or tested for electrical properties, mechanical properties and other properties) tested as agreed by both parties, and the data shall be recorded in Table B.1 of Appendix B. 4.3 Condition test
4.3.1 The test equipment is a combination of a salt spray test chamber (room) and a damp heat test chamber (room). The test steps are as follows:
a) Place or suspend the test sample on the test stand of the salt spray test chamber (room) in a non-working and non-powered state, with its largest surface facing upward and forming an angle of 15° to 30° to the vertical direction; the test samples shall not contact each other or other metals or water-absorbing materials; the test samples shall be spaced at a distance that allows salt spray to settle freely on all samples, and the salt solution on one test sample shall not drip onto any other test sample;
b) Adjust the state of the salt spray test chamber (room) to meet the requirements of 3.3.2 and 3.3.3; The time of the spray stage is 8h, during which the salt spray deposition rate should be measured at least once, and the data should be recorded in Table B.1; during the spraying period, the state of the wet heat test chamber (room) should be adjusted to meet the requirements of 3.3.2;
After the spraying stage is completed, the test sample is transferred to the wet heat test chamber (room), and the conversion time between the two stages should be less than 30min, and the conversion time is not included in the test time; the test time of the wet heat stage is 16h; d) The above test steps are one cycle, and steps a), b) and c) are repeated for the next cycle of the test. The number of test cycles is shown in 3.3.42
GB/T32065.10—2020
e) After the test, the test sample (except the test sample of the metal protective layer) is gently washed with tap water to remove the salt; then rinsed with distilled water and dried in a drying oven at (40±2)℃ for 2h; then placed under standard atmospheric conditions to recover for 1h~2h. 4.3.2 The test equipment is a composite salt spray test chamber (room). The test steps are as follows:
a) Place or suspend the test sample on the test frame of the composite salt spray test chamber (room) according to the use status, and its maximum surface should face upward and form an angle of 15°~30° with the vertical direction; the test samples should not contact each other, nor should they contact other metals or water-absorbing materials; the distance between the test samples should allow the salt spray to settle freely on all samples, and the salt solution on one test sample should not drip on any other test sample;
b) Set the parameters of the composite salt spray test chamber (room) so that the temperature and relative humidity in the spray stage and the wet heat stage and the sedimentation rate in the spray stage meet 3 .3.2 and 3.3.3, where the salt spray deposition rate should be measured at least once in each spray cycle, and the data should be recorded in Table B.1; the test cycle setting is shown in 3.3.4; c)
After the test, first wash the test sample (except the test sample of the metal protective layer) gently with tap water to remove the salt; then rinse with distilled water and dry in a drying oven at (40±2)℃ for 2h; then place it under standard atmospheric conditions to recover for 1h2h. 4.4 Final test
After the test, the test sample shall be inspected for appearance and (or) tested for electrical properties, mechanical properties and other properties in accordance with the agreement between the two parties, and the data shall be recorded in Table B.1.
Related information
When the methods specified in this section are used, the agreement between the testing parties should include the following information preprocessing;
a)
b) initial test;
c) placement of the test sample during the test; d)
Test parameters in the spray stage and wet heat stage: e)
Test cycle:
Appearance, electrical properties, mechanical properties and other performance tests; f)
g) Final test.
GB/T32065.10—2020
Appendix A
(Informative Appendix)
Test cycle selection and result description
Table A.1 and Table A.2 respectively give the test cycle selection and result description of common materials, components and complete machines. Table A.1www.bzxz.net
Test cycle selection and result description of common materials Category
Base metal
Copper and copper alloy
Copper and copper alloys
Copper and copper alloys
Copper and copper alloys
Stainless steel
Plating types
Copper-nickel-chromium
Nickel-chromium
Aluminum and aluminum alloys (anodized surface)
Table A.2
Category
Components, parts
Connectors, assembly boards
Complete machine
Test cycle (number of times)
Result description Description
Whether there is white rust on the surface
Whether there is brown rust on the surface
Whether there is white rust on the surface
Whether there is verdigris on the surface
Whether there is verdigris on the surface
Whether there are grey or light green corrosion products on the surface
Whether there are light green corrosion products on the surface
Whether there are brown rust spots on the surface
Whether there are white corrosion products on the surface
Selection of test cycles for components and complete machines and description of resultsTest cycle (number of times)
2, 4
2, 4, 6
2, 4, 6, 10
Description of results
Whether the appearance inspection and performance test meet the requirementsWhether the appearance inspection and performance test meet the requirementsWhether the appearance inspection and performance test meet the requirementsAppendix B
(Informative Appendix)
Test sample test data record sheet
Table B.1 gives the test sample test data record format. Table B.1
Test items
Sample model
Sample characteristics description
Test sample test data record table
Test sample information
Sample name
Sample number
Main equipment used in the test
Name
Concentration and pH of salt solution
Placement of test sample
Test content
Initial test
Intermediate test
Measuring range
Appearance inspection
Electrical properties
Mechanical properties
Others Performance
Sedimentation rate
mL/(80cm2.h)
Appearance inspection
Final inspection
Inspector:
Electrical performance
Mechanical performance
Other performance
Accuracy level
Or maximum allowable error
Test parameters
Certificate number
Test cycle (number of times)
Test situation
Test results
Verifier:
GB/T32065.10—2020
Valid until
Remarks1
Test items
Sample model
Sample characteristics description
Test sample test data record table
Test sample information
Sample name
Sample number
Main equipment used in the test
Name
Concentration and pH of salt solution
Placement of test sample
Test content
Initial test
Intermediate test
Measuring range
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Sedimentation rate
mL/(80cm2.h)
Appearance inspection
Final inspection
Inspector:
Electrical properties
Mechanical properties
Other properties
Accuracy level
Or maximum allowable error
Test parameters
Certificate number
Test cycle (number of times)
Test situation
Test results
Verifier:
GB/T32065.10—2020
Valid until
Remarks1
Test items
Sample model
Sample characteristics description
Test sample test data record table
Test sample information
Sample name
Sample number
Main equipment used in the test
Name
Concentration and pH of salt solution
Placement of test sample
Test content
Initial test
Intermediate test
Measuring range
Appearance inspection
Electrical properties
Mechanical properties
Other properties
Sedimentation rate
mL/(80cm2.h)
Appearance inspection
Final inspection
Inspector:
Electrical properties
Mechanical properties
Other properties
Accuracy level
Or maximum allowable error
Test parameters
Certificate number
Test cycle (number of times)
Test situation
Test results
Verifier:
GB/T32065.10—2020
Valid until
Remarks
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