GB/T 9359-2001 Basic environmental test conditions and methods for hydrological instruments
Some standard content:
1CS 07. 060
National Standard of the People's Republic of China
GB/T 9359—2001
Basic conditions and methods of enviromentaltest for hydrologic instruments2001-11-12 Issued by
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
2002-03-01Implementation
GB/T9359—2001
This standard is a revision of GB/T9359.5—1988 "General Technical Conditions for Hydrological Instruments - Basic Environmental Test Conditions and Methods". The main revisions are as follows:
a) Based on the long-term field application environment of hydrological instruments and the possibility of indoor simulation test conditions: the test items and contents of sand test, long incubation test, solar radiation test and low temperature and low pressure test specified in the original standard have been deleted; b) This standard takes into account that hydrological instruments and other related instruments are usually subjected to the corresponding environmental tests of fog and rain under atmospheric conditions at the same time in the field application site, and also takes into account the maturity of the current indoor simulation test environment conditions, so the corresponding test items and contents specified in the original standard are appropriately supplemented and revised; c) Based on the actual application of hydrological instruments for many years, this standard Based on the accumulation of technical experience such as indoor simulation tests, this standard has made appropriate adjustments and revisions to the original environmental parameters, instrument use classification, and test item contents: d) In order to meet the different use requirements of international and domestic hydrological instruments, this standard revision also made corresponding adjustments to the severity of the test in response to the development of hydrological instrument dust production technology and the improvement of the quality of electronic components, and improved or broadened the relevant test assessment parameters, such as the upper limit of working temperature, atmospheric pressure adaptation range, vibration sweep mode, number of axial drops, etc., for selection when formulating different test purposes, requirements or specific product standards;
e) The eleven test items and contents specified and proposed in this standard can be selected for application in product design, manufacturing, testing and related product standards and technical conditions.
During the preparation process, this standard referred to the international standards IEC60068-40:1983 "Basic Environmental Testing Procedures" and IEC60721-30:1984 "Classification and Grading of Environmental Parameters and Their Severity Groups". This standard shall replace GB/T 9359.5-1988 from the date of implementation. This standard is proposed by the Ministry of Water Resources.
This standard is under the jurisdiction of the Hydrological Instruments Sub-Technical Committee of the National Hydrological Standardization Technical Committee. This standard is drafted by the Nanjing Institute of Hydrological Automation and the Ministry of Water Resources Hydrological Instruments Quality Inspection Center participated in the drafting. The main drafters of this standard are Lu Xu, Li Gang, Xu Haifeng, and Zhang Yuqi. This standard was first issued in December 1988 and revised for the first time in November 2001. This standard is entrusted to the Nanjing Institute of Hydrological Automation for interpretation. Scope
National Standard of the People's Republic of China
Basic conditions and methods of enviromentaltest for hydrologie instrumentsGB/T9359-2001
GE/T9359-51988
This standard specifies the basic environmental test items and parameters, test conditions, test methods, etc. for hydrological instruments to assess the adaptability of the products to the working environment at the site of use and the transportation and storage environment. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference. When this standard is published, the versions shown are valid. All standards will be revised. Parties using this standard should explore the possibility of using the latest versions of the following standards G1711766
GB/T2421
GB/T2423
GB7T4796
SL10-1989
3 Definitions
Determination of resistance to moisture and heat, resistance to mat fog, and weathering resistance (artificially accelerated knee film preparation method 1 9796
Environmental testing for electric and electronic products Part 1: General (IDT60068-11588) Environmental testing for electric and electronic products
Classification of environmental parameters for electric and electronic products and grading of their degree of degradation 5DT60721-1:1981) Terminology for hydrological instruments
The term definitions used in this standard are synonymous with those in GB/T2421, GB/T2423, GB/T4796, SL10 and other standards. 4 Test items and parameters
4-1 This standard provides the following eleven test items according to the differences in the actual long-term use environment of hydrological instruments for specific selection and determination of various products
) Temperature test
6) Humidity test:
c) Fog and rain test:
d) Salt test
) Pressure test:
Seal test:
Vibration test
h) Impact test:
0) Silicon collision test:
1) Free fall test:
k2 Tilt and swing test
4.2 This standard is based on the degree of harshness of the use environment of various hydrological instruments and appropriately adopts the provisions of GB/T796, and is approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on November 12, 2001 and implemented on March 1, 2002
GB/T 9359-2001
products are classified and graded, and the following basic test parameters are specified for each corresponding test item, see Table 1 for details. Table 1 Classification and grouping conditions of environmental tests
Environmental parameters
Atmospheric pressure
Mechanical,
Acceleration
Acceleration
Duration time
Acceleration
Duration time
mm/min
Mass 20kg
Indoor instrument
Outdoor instrument
-10~50
25 ~ 55
40 (beauty)
56~105
Instrument
-10~55
(420~787.6 mmHg)
a. 1~1. 0
Automatic sweep 10~~150~10
Manual sweep: 10~50~10
Height: 50,100
Height: 10, 25
Number of times; 3 times/each axial direction
Ou number: 3 times/each axial direction
10--15
Note. "\ indicates that the item is to be screened, "×\ indicates that the item is not to be screened, and "\ indicates the optional item in the product standard. Class E
Ground vehicle-mounted instruments
-10~-50
20 (with reduced attenuation)
10~150~10
10~50~10
4.2.1 Class A: Indoor instruments
Applicable to hydrological instruments used indoors with climate protection measures, such as various remote recorders, display instruments, communication controllers, and various telemetry center station monitoring instruments. The protective facilities of this type of instrument can generally avoid wind, rain, snow, dust, and sun Direct or indirect attack by sunlight, etc. The environment is divided into the following groups:
a) A1: a closed place with temperature and filtration control (such as a general air-conditioned room). There are slight vibrations and shocks during use, transportation and storage.
b) A2: a non-strictly closed office place without temperature and humidity control (such as a general studio). When the outdoor temperature is low (below 0), it is allowed to use a heater to increase the room temperature. There are vibrations and shocks during use, transportation and storage. c) A3: a place without temperature and humidity control, which can be directly connected to the outdoors and has simple climate protection (such as various hydrological telemetry terminals, relay machines, data acquisition solid-state storage devices and other general instrument stations). There are salt splashes during use, and there are vibrations and shocks during transportation and storage. 4.2.2B category.Outdoor instruments are suitable for hydrological instruments used in places without climate protection measures, simple shelter or field exposure, such as sensors for measuring various hydrological elements such as flow rate, water level, rain, evaporation, and sediment. The protective measures for this type of instrument are generally difficult to avoid direct or indirect invasion of wind, rain, snow, dust, and sunshine. In use, there are rain and salt, and they must withstand vibration and impact during transportation and storage. Among them, they are grouped according to the environment: a) Group B1: Sheltered places. They can basically protect against direct invasion of sunlight, rain, wind, dust, ice, etc. Such as working sheds for hydrological instruments, open-air protection boxes, simple water level logging, instrument rooms, cableway shelters, etc. b) Group B2: Field exposure places. They are directly exposed to sunlight, rain, wind, dust, ice, etc. Such as water level, rainfall, evaporation, etc. sensors, hydrological cableway facilities, etc.
4.2.3C Category: Underwater Instruments
Applicable to hydrographic instruments directly subjected to water pressure, flooding, aquatic flora and fauna, and floating objects in free water bodies such as rivers, tidal moors, reservoirs, canals, and underground culverts. Such as various flow sensors, water level pressure sensors, ultrasonic transducers, sediment samplers, etc. Such instruments are subject to vibration and sediment scouring caused by water flow impact during use. They must be protected from salt spray and sealed during use, and subject to vibration and impact during transportation and storage. 4.2.4D Category: Shipborne Instruments
Applicable to hydrographic instruments installed inside or outside the cabin of motorized or non-motorized ships for operation, such as various flow meter counters: flow rate calculators, marine hydrographic winches, ultrasonic depth sounders, etc. Such instruments must be protected from salt spray and sealed during use, and subject to vibration, impact, magnetic collision, and swing during transportation and storage. Among them, they are grouped according to the environment: a) D1 Group: Installed on motor ships: dead.
b) D2 Group: Installed on non-motorized boats. 4.2.5E Class: Ground Vehicle Instruments
Applicable to hydrological instruments installed on water patrol vehicles or flood control command vehicles, such as various flow rate and flow calculators, counters, winches, lead fish, telemetry communication control machines, etc. Among them, the environmental groups are: a) E1 Group: Installed in a closed vehicle with weather protection and temperature control. There are strong grips, impacts and collisions during use, transportation and handling.
b) E2 Group: Installed in a closed vehicle without weather protection and temperature control. During patrol operations, the product is directly exposed to the invasion of outdoor natural air, sunlight, raindrops or dew, and there are strong vibrations, impacts and collisions during use, transportation and handling. It must be protected from salt spray and sealed during use.
5 Determination and demonstration methods of basic environmental test items 5.1 This standard comprehensively specifies the basic environmental test conditions and project contents of various environmental grouping products of hydrological instruments. When selecting and applying products of various categories or groups, they should be determined according to the use characteristics of the product and the relevant technical requirements and test methods stipulated in the product standards:
5.2 When compiling general product standards, the environmental grouping, test conditions, test items, parameters and methods of the product should be clearly specified. For the specific test contents that have been specified in this standard, the article number can be directly quoted. (See GB/T2421, GB/T2423). 5.3 Before conducting various environmental tests, the basic performance indicators to be tested for the tested products should be clearly specified in the provided product standards (or technical conditions).
5.4 In the product standard of hydrological instruments, when expressing basic environmental test conditions and methods, they should be indicated in the following format: Example:
The product must be tested according to the provisions of GB/T9359-2001 Basic Environmental Test Conditions and Methods for Hydrological Instruments, according to Group A2 and Article 6.3.
5.5 When hydrological instrument products are used in special environments, the environmental conditions and test methods should be clearly specified in the technical standards of the product.
6 Temperature test
6. 1 Purpose
GB/T 9359-2001
To determine the performance of the tested product in operation at the specified ambient temperature; to determine the adaptability of the tested product to high and low temperature changes in the environment during transportation and storage. 6. 2 Test conditions
According to the environmental test group determined by the test product standard, the test should be carried out according to the specified use temperature range and storage temperature range. The product under test is in an unpackaged state.
6.3 Test method
This standard stipulates that the temperature cycle test of the hydrometer can also be carried out directly from the low temperature curve
6.3.1 Normal temperature test
The temperature cycle test of the instrument shall be carried out in the following sequence. That is, first high temperature, then low temperature, and then high temperature. In special cases, the performance test
is carried out at normal temperature. 6.3.2 High temperature test - Maximum over 1gcnmin Heating rate: Constant temperature zone allows gain of degree, exceeding national upper temperature limit, conditional temperature, service temperature, product requirements, performance test 6.3.2.1 Constant temperature time and power-on test
8) Rated lower limit temperature test
Temperature mismatch test
Place the product under test in the high and low temperature test chamber, turn on the power of the product under test, and let the temperature in the high and low temperature test chamber drop to the rated lower limit temperature for use. After 2 hours, perform a performance test on the product under test. b) Storage range lower limit temperature test
Put the product under test in a power-off state, let the temperature in the high and low temperature test chamber drop to the lower limit temperature of the storage range, and leave it for 4 hours. c) Normal temperature recovery test
After the storage range lower limit temperature test, cut off the power of the high and low temperature test chamber, and let the product under test naturally warm up to the normal temperature under atmospheric conditions. If there is condensation on the product under test, dry air can be used to blow it dry, and power it on for preheating for 1 hour before performing a performance test. d) Rated upper limit temperature test
Turn on the power of the product under test, and then let the temperature in the high and low temperature chamber rise to the rated upper limit temperature for use. After 2 hours, perform a performance test on the product under test. 4
Storage range upper limit temperature test
GB/T93592001
The test product is in power-off state, and the temperature in the high and low temperature test chamber is raised to the upper limit temperature of the storage range. The placement time is not less than 6h. When the upper or lower limit value of the storage range temperature is the same as the upper or lower limit value of the rated use temperature, this item can be exempted from the test. Repeat the rated use upper limit temperature test
Let the test product return to the rated use upper limit temperature along with the high and low temperature test chamber, connect the power of the test product, and keep the temperature constant for not less than 4, then conduct performance test on the test product.
) Temperature test under normal atmospheric conditions
Allow the product under test to naturally return to normal temperature in the high and low temperature test chamber. After taking it out of the chamber for 1 hour, connect the power supply of the product under test to carry out performance test
6.3.2.2 Performance test and inspection
) The test requirements of the product under test at each stage of the temperature test should be specified as the same for comparison. The items and methods of performance test should be clearly specified in the product standard. When performing performance tests at each stage of temperature, the number of tests should be no less than 3 times. After completing the above tests, the test products should be inspected daily. There should be no rust, cracks, or damage such as coating agent removal. The text mark should be clear, the mechanical fastening parts should not be loose, and the control operation structure should be flexible. Plastic parts should not have blistering, cracking, or deformation. There should be no rust on the electrical contacts. After visual inspection, insulation resistance test is carried out. The test results should meet the corresponding provisions of the test product standard. 7 Humidity test
7.1 Daily
Determine the adaptability of the test product to use and paste under uniform humidity and humidity, especially under high temperature and high temperature conditions. 7.2 Test conditions
According to the environmental test group specified in the test product standard, determine the product's use temperature and humidity and storage temperature and humidity parameters according to Table 1. The test product should be in a non-packaged state
7.3 Humidity test method
7.3.1 Prohibition regulations
! The air in the test chamber should be able to circulate evenly. The temperature and humidity in the chamber should be able to be maintained within the following range of the specified indicators. Temperature fluctuation: ±2C
Humidity fluctuation: mainly 3RH
b The test chamber should have facilities to prevent condensation from falling on the test product. 7.3.2 Test steps
7.3.2.1 Initial inspection
Before the test, perform appearance, performance and electrical safety inspections in accordance with the product standards. Put the test product into the test chamber. After preheating for 24 hours at the specified rated temperature, gradually increase the humidity in the test chamber to the rated temperature
e) Maintain the rated operating temperature and humidity for 48 hours. 7.3.2.2 Reading and measurement
Perform mechanical performance and electrical safety inspections on the test product in accordance with the product standards. The number of tests shall not be less than 3 times, and then disconnect the power supply
7.3.2.3 Storage test
Adjust the temperature and humidity in the test box to the storage conditions and maintain them for 48 hours. During this process, the humidity should be kept at 100RH73.2-4 Recovery
After the test, stop the pressure first, then take out the tested product and restore it under normal atmospheric pressure for 24 hours. 7.3.3 Performance test and inspection
) After the test, conduct daily inspection on the appearance of the tested product: there should be no damage such as rust, cracks, and coating puncture. The text and logo should be clear. GB/T 9359--2001
The fasteners should not be loose. The operating control parts should be flexible. The plastic parts should not bubble, crack, or deform; the electrical contacts should not be rusted. b) The performance test results should comply with the requirements of the tested product standards (technical conditions). c) The electrical safety performance such as insulation resistance and insulation strength shall comply with the requirements of the standards (technical conditions) of the tested product. 8 Mist and rain test
8.1 The test is to determine the adaptability of the hydrological instrument working in the open air to the wet and rainy environment in the non-packaged state. 8.2 Test conditions
Simulation test field: special mist and rain test room; Rainfall intensity: 0.1~-4.0mm/min;
Rainwater temperature: 5~35℃ (preferably the same as the temperature of the tested product to generate water inside the product); the rainfall direction is 90° or 45° from the horizontal plane, and the rainfall time: 10~30 min.
Working state; non-working state.
8. 3 Test method
8. 3. 1 Initial measurement
Under normal atmospheric conditions, perform an appearance inspection and test the electrical and mechanical properties in accordance with the standards (technical conditions) of the test product. a) Remove dust and oil stains from the watertight structure of the test product. b) Install the test product on the test bench in an installation state with the test surface at an angle of 90° and 45° to the vertical direction. After the rain stops, remove the test product from the test bench and remove the external water. 8.3.2 Final inspection
The appearance inspection should be clear in text and marks, without damage on the surface. After opening the casing, there should be no water seepage inside. The electrical and mechanical properties of the test product should be tested, and the test results should comply with the requirements of the standards (technical conditions) of the test product. 9 Salt spray test
9.1
Determine the anti-salt spray corrosion performance of components, seasonal parts, chassis, and circuit boards of hydrological instrument products in unpackaged state in coastal and port areas to evaluate the adaptability of the tested products in salt spray environment. 9.2 Test conditions
The salt spray box (chamber) must be made of materials with salt spray corrosion resistance and can ensure the adjustment and maintenance of various parameter conditions required for the test.
9.2.1 The salt solution is prepared with sodium chloride (chemically pure) and distilled water, and its iridium content is 4.9% to 5.1% by weight. The collected liquid after atomization shall not be reused except for the return part.
9.2.2 The pH of the salt solution before atomization is between 6.5 and 7.2 (.35℃). When preparing the salt solution, it is allowed to use dilute hydrochloric acid or sodium hydroxide solution of chemical purity or above to adjust the pH, but the silt content must still meet the requirements of 9.2.1. 9.2.3 The temperature of the effective space of the salt spray box (room) is (35 ± 2) °C. 9.2.4 The salt spray precipitation amount of continuous atomization for 16 hours is collected by a funnel with an area of 80 cm. The precipitation rate at any position in the effective space is 1.0-~2.0 mL/h (80 cm*)
9.2.5 This test adopts the continuous spray method, and the recommended standard continuous time is 16.24.48.96.336.672h. For specific use, please refer to Table 2.
9.2.6 If the salt spray is generated by a nozzle, the compressed air should be preheated and humidified, and ensure that it is consistent with the test case temperature and does not contain harmful impurities such as oil, dust, etc.
Base metal
Copper and copper alloys
Components and parts
Connectors and assembly boards
Aluminum and aluminum alloys
Paint film
9.3 Test method
9.3.1 Number of test samples
GB/T 9359--2001
, Table 2 Test time selection and qualification requirements
Test time
Copper-Nickel-
Qualification requirements
No white rust on the surface
(The bond layer is treated as anodic oxidation after treatment)
No brown rust on the surface
No creeping green on the surface
No gray or light green corrosion products on the surface
No light green corrosion products on the surface
Appearance inspection + electrolytic measurement meets the requirements
No white corrosion products on the main surface
(Sealing treatment after anodizing)
Dream according to CB/T 1765
Generally 3~~5 pieces of each type, special cases shall be subject to the provisions of product technical conditions. 9.3.2 Initial inspection
Remove dust and oil from the sample surface, conduct appearance inspection and other performance measurements. 9.3.3 Test
a) The test sample is tested in the salt spray test chamber (room) under the specified test conditions, and the duration is selected according to 9.2.5. b) The test sample retention position is determined by the relevant standards. It should be placed (or tied) on the test frame in parallel according to the use status. The plate sample should make the test surface form an angle of 30° with the vertical direction. c) The test samples shall not touch each other. The distance between them shall not affect the free fall of salt on the sample and the salt solution on the sample shall not drip on any other sample.
9.3.4 Recovery
After the test, gently wash off the salt deposits on the surface of the test sample with running water, rinse with distilled water, and place it in an oven at (40±2)℃ for 2 hours, and then recover under normal atmospheric conditions for 1~2 hours. 9.3.5 Final test
According to the product standard, the restored test sample shall be promptly inspected for appearance and electrical performance, and the test results shall comply with the product standard (technical conditions).
10 Pressure test (hydrostatic test)
10.1 Purpose
To determine the adaptability of the watertight component structure or filling body of the hydrographic instrument product used underwater to the hydrostatic pressure. 10.2 Test conditions
a) The range of the pressure gauge should be selected to be 1.5 times the test pressure. b) The accuracy level of the pressure gauge should not be lower than level 1.5. c) The temperature difference between the water temperature and the test sample should be within the range of ±5°C. 10.3 Test method
GB/T 9359—2001
10.3.1 Place the test product in a non-working state in the pressure test device. The test pressure is 250kPa and 600kPa. 10.3.2 Carry out the pressure test according to the pressure increase step diagram in Figure 2, in the following order: increase the pressure to the specified value, and maintain it for 2 min, 5 min, 10 min, 30 min, 2 h, 8 h or 21 h, and then reduce it to normal atmospheric pressure. Pressure
Rated test
test pressure p
a) When the pressure is old
b) Monitor the pressure rise
right% after the pressure, the pressure rise rate can be controlled within the range of 10kPa/min, the rated test pressure is produced, and the holding time shall not be less than 8h. 10.3.3 Take out the tested sample, wipe it clean, and place it in normal atmospheric pressure for 30min
10.3.4 According to the provisions of the product standard
(Technical Conditions) (the sealing parts are not recommended)
(Technical Conditions), the appearance of the tested product shall not have rigid deformation: the tested product has a certain influence on the mechanical properties of the tested product during the pressure test. The test results of electrical performance and working characteristics shall comply with the product standard sealing test (flooding
Determine the specified pressure and time for the parts and equipment on the hydrological instrument product to be sealed. 11.2 Test conditions
Immerse the test product in a water container or a high-pressure container with a specified source of pressure, and apply the specified pressure to the test sample. 11.3 Initial inspection
According to the provisions of the product standard, the test sample shall be inspected for appearance, mechanical properties and electrical properties, and all sealing components shall be checked for correct installation.
11.3.1 Pretreatment
If necessary, pretreat the test sample and the seal according to the relevant standards. 11.3.2 Test conditions
a) Immerse the test sample in a water container or a high-pressure container according to the technical conditions. b) The test sample shall be able to withstand the water depth static pressure value or the corresponding pressure difference value given in Table 3. Requirement rate
c) The product standard shall specify the duration. The preferred values are: 2min.5min.10min, 30min.2h.8h, 24h. When using a liquid tank, the specified water depth should be calculated from the liquid surface to the highest point of the test sample. When using a high-pressure container, the water pressure should be adjusted according to the pressure difference specified in Table 3. d) The temperature of the test product during the test should be higher than the water temperature, and the limit is plus 10℃ when it is lower than the water temperature. The temperature difference should not exceed ±5℃. 8
GB/T93592001
e) Unless otherwise specified, the test products are in a non-working, disconnected state during the test. Table 3 gives the water depth or corresponding pressure
Still water depth
11.3.3 Recovery
After the test, wipe off the water marks on the surface of the sample and dry it. 11.3.4 Final inspection
Conduct the test sample
Conditions).
Vibration test
12.1 Purpose
Corresponding pressure difference (at 25℃)
Check for water seepage, appearance inspection, mechanical and electrical performance inspection. The test results shall meet the product standards (technical requirements) to determine the adaptability of the tested product to vibration and the structural integrity during use, transportation and handling in the packaged state. For Class D and Class E products, the test shall be carried out in the unpackaged state. 12.2 Test conditions
Product vibration test conditions are shown in Table 4.
Vibration test conditions
Test conditions
Frequency cycle range
Sweep frequency speed
Drive vibration Amplitude or acceleration
Working state
Sweep cycle range
Sweep speed
Fixed frequency test method
Drive amplitude or acceleration
Number of cycles
Working state
Amplitude or acceleration
Hold time
Working state
Repeat vibration response check
Indoor instrumentOutdoor instrument
Automatic 10~15010Hz
Working 10~50-10Hz
1 octave/min
Non-working state
10150~10Hz||t t||1 times of range/min
20m7ss
2 times/each axis 10 times/each axis
Non-working state
10~5010Hz
40min/each frequency point
Working state
Underwater instrument
Shipborne instrument
2~80~2Hz
1 times of range/min
±0.72mm or 5m/s
Non-working state
30min/each
Frequency point
Working state
Test conditions are the same as vibration response inspection||t t||Ground vehicle instrument
Automatic10~150~10H2
L10~50~10Hz
1 octave/min
Non-working state
10~150~10Hz
1 octave/min
10 times/each axis
Non-working state
Sweep cycle range: 10~150~10Hz
Sweep rate, 1 times rated range/min
Acceleration: 2 times/each axis
Number of cycles: 2 times/each axis
12.3, test method
GB/T 9359—2001
12.3.1 The test product must be subjected to vibration tests in three axes. If the vibration test in three axes cannot be achieved due to the limitation of the vibration equipment, for products that are allowed to change the normal placement position, it can be achieved by changing the placement position; for products that are not allowed to change the normal placement position, the vibration time shall be doubled. 12.3.2 Check that the fixing bracket itself should have no resonance, and then fix the test product. The position of the product when it is working should be simulated and fastened on the vibration table. The center of gravity of the test product should be located in the central area of the vibration table. For Class D and Class E products, the exciting force should be transmitted directly to the test product and should not pass through the foot, handle or other buffering device. 12.3.3 The device (bolts, pressure plates, pressure strips, etc.) that fastens the test product should avoid self-resonance during the vibration test. 12.3.4 When the shell or cover must be removed to observe and measure the internal components of the product under test, it is allowed to remove the shell or cover to observe the resonance position of the product under test and measure its amplitude. If the shell or cover cannot be removed, a simulated box with holes can be used to replace the box of the product under test for testing and observation. 12.3.5 Test steps
12.3.5.1 Preparation before the test
Check the test equipment and prepare to enter the working state. 12.3.5.2 Initial inspection
Put the product under test under normal atmospheric pressure conditions, and conduct appearance inspection and mechanical and electrical performance inspection according to the relevant product standards (technical conditions) to ensure that it is in normal condition. 12.3.5.3 Vibration test
) Initial vibration response inspection: Scan the product under test in three axial directions according to the test conditions specified in Table 4. If necessary, reduce the frequency sweep rate or make a short stop at the resonance point. The test product is inspected to determine the dangerous frequency that causes the following phenomena: for example: (1) Vibration causes the test product to malfunction, performance deviation, or failure. (2) Mechanical resonance and other response phenomena. b) Endurance test: According to the conditions specified in Table 1, the vibration test is carried out using the sweep frequency method or the fixed frequency method. c) Intermediate inspection: At the end of the endurance test, the working characteristics of the test product are inspected in accordance with the product technical standards (technical conditions).
d) Repeat the vibration response inspection, repeat the test, and observe the resonance frequency. The resonance point should not change significantly. If there is a significant change, carefully check whether the test product has breakage, deformation, loose fasteners or other hidden phenomena. If there is, take measures to eliminate them. e) Recovery: The test product is recovered under normal atmospheric pressure conditions, and the recovery time shall not be less than 1 hour. ↑) Final inspection: According to the product standards (technical conditions), the test product is subjected to performance testing and appearance inspection. The inspection results should comply with the corresponding regulations.
13 Impact test,
13.1 Purpose
To determine the adaptability and structural integrity of the tested products in the packaged state to withstand non-multiple repetitive mechanical impacts during loading, unloading and transportation
For Class D and Class E products, the test should be carried out in the unpackaged state. 13.2 Test conditions
The environmental conditions for the impact test of each group of tested products are shown in Table 5. 13.3 Test method
The tested products are fastened on the impact table in their normal installation mode. For products with reducers, the reducers should be tested together. No intermediate inspection is performed during the impact test. 10.2 Test conditions
Product vibration test conditions are shown in Table 4.
Vibration test conditions
Test conditions
Frequency cycle range
Frequency sweep speed
Drive amplitude or acceleration
Working state
Frequency sweep cycle range
Frequency sweep speed
Fixed frequency test method
Drive amplitude or acceleration
Number of cycles
Working state
Amplitude or acceleration
Hold time
Working state
Repeated vibration response test Check
Indoor instrumentOutdoor instrument
Automatic 10~15010Hz
Working 10~50-10Hz
1 octave/min
Non-working state
10150~10Hz
1 octave/min
20m7ss
2 times/each axis10 times/each axis
Non-working state
10~5010Hz
40min/each frequency point|| tt||Working state
Underwater instrument
Shipborne instrument
2~80~2Hz
1 times the range/min
±0.72mm or 5m/s
Non-working state
30min/each
At frequency point
Working state
Test conditions are the same as vibration response check
Ground vehicle-mounted instrument
Automatic10~150~10H2
L10~50~1 0Hz
1 octave/min
Non-working state
10~150~10Hz
1 octave/min
10 times/each axisbzxZ.net
Non-working state
Frequency sweep cycle range: 10~150~10Hz
Frequency sweep rate, 1 times rated range/min
Acceleration: 2 times/each axis
Number of cycles: 2 times/each axis
12.3, Test method
GB/T 9359—2001
12.3.1 The tested product must be subjected to vibration test in three axes. If the vibration test in three axes cannot be realized due to the limitation of vibration equipment, for products that allow the normal placement to be changed, it can be realized by changing the placement position; for products that do not allow the normal placement to be changed, the vibration time shall be extended by one time. 12.3.2 Check that the fixing bracket has no resonance, and then fix the product under test. The position of the product when working should be simulated and fastened on the vibration table. The center of gravity of the product under test should be located in the center area of the vibration table. For Class D and Class E products, the exciting force should be directly transmitted to the product under test, and should not pass through the footrest, handle or other buffering device. 12.3.3 The device (bolts, pressure plate, pressure strip, etc.) that fastens the product under test should avoid generating self-resonance during the vibration test. 12.3.4 When the shell or cover must be removed to observe and measure the internal components of the product under test, it is allowed to remove the shell or cover. In order to observe the resonant position of the product under test and measure its amplitude, if it is impossible to remove the shell or cover, a simulated box with holes can be used instead of the product under test box for testing and observation. 12.3.5 Test steps
12.3.5.1 Preparation before the test
Check the test equipment and prepare to enter the working state. 12.3.5.2 Initial test
Place the test product under normal atmospheric pressure and conduct appearance inspection and mechanical and electrical performance inspection according to the relevant product standards (technical conditions) to ensure that it is in normal condition. 12.3.5.3 Vibration test
) Initial vibration response inspection: Sweep the test product in three axial directions according to the test conditions specified in Table 4. If necessary, the sweep rate can be reduced or a short stop can be made at the resonance point. Check the test product to determine the dangerous frequency that causes the following phenomena: For example: (1) Vibration causes the test product to malfunction, performance deviation, or failure. (2) Mechanical resonance and other response phenomena. b) Endurance test: Perform vibration test according to the conditions specified in Table 1 using the sweep frequency method or the fixed frequency method. c) Intermediate inspection: At the end of the endurance test, the working characteristics of the test product shall be tested according to the product technical standards (technical conditions).
d) Repeat the vibration response inspection, repeat the test, and observe the resonance rate. The resonance point should not change significantly. If there is a significant change, carefully check whether the tested product has breakage, deformation, loose fasteners or other hidden phenomena. If so, take measures to eliminate them. e) Recovery: The tested product is recovered under normal atmospheric pressure conditions, and the recovery time shall not be less than 1h. ↑) Final inspection: According to the product standards (technical conditions), the tested product shall be tested for performance and appearance. The inspection results shall comply with the corresponding regulations.
13 Impact test,
13.1 Purpose
Determine the adaptability of the tested product in the packaged state to withstand non-multiple repetitive mechanical shocks and the structural integrity during loading and unloading and transportation
For Class D and Class E products, the test should be carried out in the unpackaged state. 13.2 Test conditions
The environmental conditions for the impact test of each group of test products are shown in Table 5. 13.3 Test method
The test products are fastened on the impact table in their normal installation mode. For products with reducers, the reducers should be tested together. No intermediate inspection is performed during the impact test. 10.2 Test conditions
Product vibration test conditions are shown in Table 4.
Vibration test conditions
Test conditions
Frequency cycle range
Frequency sweep speed
Drive amplitude or acceleration
Working state
Frequency sweep cycle range
Frequency sweep speed
Fixed frequency test method
Drive amplitude or acceleration
Number of cycles
Working state
Amplitude or acceleration
Hold time
Working state
Repeated vibration response test Check
Indoor instrumentOutdoor instrument
Automatic 10~15010Hz
Working 10~50-10Hz
1 octave/min
Non-working state
10150~10Hz
1 octave/min
20m7ss
2 times/each axis10 times/each axis
Non-working state
10~5010Hz
40min/each frequency point|| tt||Working state
Underwater instrument
Shipborne instrument
2~80~2Hz
1 times the range/min
±0.72mm or 5m/s
Non-working state
30min/each
At frequency point
Working state
Test conditions are the same as vibration response check
Ground vehicle-mounted instrument
Automatic10~150~10H2
L10~50~1 0Hz
1 octave/min
Non-working state
10~150~10Hz
1 octave/min
10 times/each axis
Non-working state
Frequency sweep cycle range: 10~150~10Hz
Frequency sweep rate, 1 times rated range/min
Acceleration: 2 times/each axis
Number of cycles: 2 times/each axis
12.3, Test method
GB/T 9359—2001
12.3.1 The tested product must be subjected to vibration test in three axes. If the vibration test in three axes cannot be realized due to the limitation of vibration equipment, for products that allow the normal placement to be changed, it can be realized by changing the placement position; for products that do not allow the normal placement to be changed, the vibration time shall be extended by one time. 12.3.2 Check that the fixing bracket has no resonance, and then fix the product under test. The position of the product when working should be simulated and fastened on the vibration table. The center of gravity of the product under test should be located in the center area of the vibration table. For Class D and Class E products, the exciting force should be directly transmitted to the product under test, and should not pass through the footrest, handle or other buffering device. 12.3.3 The device (bolts, pressure plate, pressure strip, etc.) that fastens the product under test should avoid generating self-resonance during the vibration test. 12.3.4 When the shell or cover must be removed to observe and measure the internal components of the product under test, it is allowed to remove the shell or cover. In order to observe the resonant position of the product under test and measure its amplitude, if it is impossible to remove the shell or cover, a simulated box with holes can be used instead of the product under test box for testing and observation. 12.3.5 Test steps
12.3.5.1 Preparation before the test
Check the test equipment and prepare to enter the working state. 12.3.5.2 Initial test
Place the test product under normal atmospheric pressure and conduct appearance inspection and mechanical and electrical performance inspection according to the relevant product standards (technical conditions) to ensure that it is in normal condition. 12.3.5.3 Vibration test
) Initial vibration response inspection: Sweep the test product in three axial directions according to the test conditions specified in Table 4. If necessary, the sweep rate can be reduced or a short stop can be made at the resonance point. Check the test product to determine the dangerous frequency that causes the following phenomena: For example: (1) Vibration causes the test product to malfunction, performance deviation, or failure. (2) Mechanical resonance and other response phenomena. b) Endurance test: Perform vibration test according to the conditions specified in Table 1 using the sweep frequency method or the fixed frequency method. c) Intermediate inspection: At the end of the endurance test, the working characteristics of the test product shall be tested according to the product technical standards (technical conditions).
d) Repeat the vibration response inspection, repeat the test, and observe the resonance rate. The resonance point should not change significantly. If there is a significant change, carefully check whether the tested product has breakage, deformation, loose fasteners or other hidden phenomena. If so, take measures to eliminate them. e) Recovery: The tested product is recovered under normal atmospheric pressure conditions, and the recovery time shall not be less than 1h. ↑) Final inspection: According to the product standards (technical conditions), the tested product shall be tested for performance and appearance. The inspection results shall comply with the corresponding regulations.
13 Impact test,
13.1 Purpose
Determine the adaptability of the tested product in the packaged state to withstand non-multiple repetitive mechanical shocks and the structural integrity during loading and unloading and transportation
For Class D and Class E products, the test should be carried out in the unpackaged state. 13.2 Test conditions
The environmental conditions for the impact test of each group of test products are shown in Table 5. 13.3 Test method
The test products are fastened on the impact table in their normal installation mode. For products with reducers, the reducers should be tested together. No intermediate inspection is performed during the impact test. 10.3. Vibration test
) Initial vibration response check: Sweep the test product in three axial directions according to the test conditions specified in Table 4. If necessary, reduce the sweep rate or make a short stop at the resonance point. Check the test product to determine the dangerous frequency that causes the following phenomena: For example: (1) Vibration causes the test product to fail, performance exceeds the tolerance, or malfunction. (2) Mechanical resonance and other response phenomena. b) Endurance test: Perform vibration test using the sweep frequency method or fixed frequency method according to the conditions specified in Table 1. c) Intermediate inspection: At the end of the endurance test, the working characteristics of the test product are tested according to the product technical standards (technical conditions).
d) Repeat vibration response inspection, repeat the test, and observe the resonance rate. The resonance point should not change significantly. If there is a significant change, carefully check whether the test product has breakage, deformation, loose fasteners or other hidden phenomena. If so, take measures to eliminate them. e) Recovery: The test product is recovered under normal atmospheric pressure conditions, and the recovery time shall not be less than 1 hour. ↑) Final inspection: According to the product standards (technical conditions), the test products shall be subjected to performance tests and appearance inspections. The inspection results shall comply with the corresponding regulations.
13 Impact test,
13.1 Purpose
To determine the adaptability and structural integrity of the test products in the packaged state to withstand non-multiple repetitive mechanical shocks during loading, unloading and transportation
For Class D and Class E products, the test shall be carried out in the unpackaged state. 13.2 Test conditions
The environmental conditions for the impact test of each group of test products are shown in Table 5. 13.3 Test method
The test products shall be fastened on the impact table in their normal installation mode. For products with reducers, the reducers shall be tested together. No intermediate inspection shall be performed during the impact test. 10.3. Vibration test
) Initial vibration response check: Sweep the test product in three axial directions according to the test conditions specified in Table 4. If necessary, reduce the sweep rate or make a short stop at the resonance point. Check the test product to determine the dangerous frequency that causes the following phenomena: For example: (1) Vibration causes the test product to fail, performance exceeds the tolerance, or malfunction. (2) Mechanical resonance and other response phenomena. b) Endurance test: Perform vibration test using the sweep frequency method or fixed frequency method according to the conditions specified in Table 1. c) Intermediate inspection: At the end of the endurance test, the working characteristics of the test product are tested according to the product technical standards (technical conditions).
d) Repeat vibration response inspection, repeat the test, and observe the resonance rate. The resonance point should not change significantly. If there is a significant change, carefully check whether the test product has breakage, deformation, loose fasteners or other hidden phenomena. If so, take measures to eliminate them. e) Recovery: The test product is recovered under normal atmospheric pressure conditions, and the recovery time shall not be less than 1 hour. ↑) Final inspection: According to the product standards (technical conditions), the test products shall be subjected to performance tests and appearance inspections. The inspection results shall comply with the corresponding regulations.
13 Impact test,
13.1 Purpose
To determine the adaptability and structural integrity of the test products in the packaged state to withstand non-multiple repetitive mechanical shocks during loading, unloading and transportation
For Class D and Class E products, the test shall be carried out in the unpackaged state. 13.2 Test conditions
The environmental conditions for the impact test of each group of test products are shown in Table 5. 13.3 Test method
The test products shall be fastened on the impact table in their normal installation mode. For products with reducers, the reducers shall be tested together. No intermediate inspection shall be performed during the impact test. 10.
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