The purpose of the MIL STD 810H Test Method 510.7 sand and dust test is to evaluate the equipment’s resistance to dust that may block openings, seep into cracks, bearings and streets, and also to evaluate the working efficiency of the filter device. However, as the degree of mechanization of military operations increases, they cause more problems than the natural sand and dust environment, in order to help determine whether this test is applicable to the equipment tested.
The US military standard MIL-STD-810H does not refer to a certain test item. In our Chinese military equipment environmental test standard GJB 150A, It is adapted from the translation of the US military standard MIL-STD-810G standard. The standard covers the climatic environment, mechanical environment, etc. Test, common IEC60068 and GB/T2423 electronic equipment environmental test standards.
The main users that comply with the US military standard MIL-STD-810H are military, police, telecommunications engineering, construction sites, outdoor surveying and other products. The working environment of these products is prone to collision, rain, sand and dust, etc., which can cause equipment damage. In addition to shockproof, waterproof, drop-proof and dust-proof, it can also be installed and used in field vehicles. This standard has been widely used by military and police personnel in Europe, Japan, Singapore, Europe, Malaysia and other places.
● | Procedure I – Blowing Dust involves exposing a system to circulating dust particles, preferably from the region in which the system is expected to operate, for 12 hours. | Test Methods|Procedure I – Blowing Dust |
● | Natural dust from specific region is not available, a test dust closest in composition can be used | |
● | Temperature conditions should be kept at standard ambient air temperatures, as well as the system’s previously established high operating and storage temperatures. | |
● | Relative humidity should not exceed 30 percent due to the caking of particles that occurs in particularly humid environments. | |
● | Air velocity should be 300 +/-200 feet/minute to maintain test temperature conditions and increased to 1750 +/-250 feet/minute to effectively simulate desert winds. | |
● | Other air velocities can be used to represent the system’s intended environment. | |
● | The system in question is operated during testing if it is intended to operate during a real-world dust event|Wewon Environmental Chambers Co., Ltd. Copyrights | |
● | Damage and impairment are also assessed once testing concludes. | |
● | Procedure II – Blowing Sand involves exposing a system to particles of quartz sand resembling those in the region of interest for 90-minute intervals. | Test Methods|Procedure II – Blowing Sand |
● | Given that there are 90 deserts across the globe, each with different sand particle size distributions, it is impossible to determine a distribution that accounts for every locale, which is why the standard 150-850 micrometer particle size is used during testing. | |
● | If a MIL-STD-810H method 510 dust and sand test system is expected to operate in a region with an unusual sand composition, samples should be collected & analyzed to determine distribution of material used to stress-test computer. | |
● | Temperature conditions should be kept at standard ambient air temperatures, as well as the system’s previously established high operating and storage temperatures. | |
● | Air velocity should be 18-29 m/s, or 40-65 mph, to simulate real-world wind and wind gusts, as well as ensure that the particles remain suspended during circulation. | |
● | System should be reoriented at 90-minute intervals so it can experience max erosion effects. | |
● | Military sand and dust test chamber in question is operated during test if intended to operate during a real-world sand event. |
● | MIL-STD-810H-510.7-SDT (Wewon Tech) | Equipment Model |
● | 1300×500×500mm (L×W×H) | Max Test Sample |
● | 2000×1000×1000mm (W*D*H) | Inner Room Size |
● | 6900×4200×3500mm (W*D*H) | Machine Appearance |
● | Test Room +23℃~+70℃ | Temperature Range |
● | ±2℃|Method 510.7 Sand and Dust Test Equipment | Temperature Deviation |
● | Military Sand <30%RH | Humidity Range |
● | Dust Blowing 1.5~8.9 m/s|Sand Blowing 18.0~29.0 m/s (Adjustable) | Dust, Sand Wind Speed |
● | Concentration (10.6 ± 7) g/m3 | Blowing Dust |
● | Blowing Dust Diameter ≤150 um | Sand Diameter |
● | The diameter of blowing sand is 150um~850um | Sand Diameter |
Controller System | Siemens touch screen controller + PLC control system independently developed by Wewon Tech | Control System |
Setting Method | Chinese and English Menu, Touch Screen Input | |
Operation Mode | Manual Setting, Automatic Operation | |
Dust Blowing Time | 1S~9999H59M59S Adjustable | |
Safety Protection | MIL STD 810 blowing sand and dust test chamber equip with fan overcurrent Alarm; Power supply phase loss and phase sequence protection. | |
Safety Protection | Automatically shut down and cut off the power supply in unexpected situations. | |
Machine Appearance | SUS 201 Stainless Steel|MIL-STD-810 Test Method 510.7 Sand & Dust | Material Used |
Inner Room Material | Imported High-grade Stainless Steel SUS304 | |
Door Size | Fully open single wing (1300×1300mm), with double-layer silicone rubber seal and door lock | |
Cabinet Seal | There is no dust leakage during operation, which can well protect the surrounding environment from pollution |
The MIL-STD-810G test requires expensive test costs. Commercial products that can usually be tested are high-value or extremely important products to achieve the purpose of escorting product quality, such as watches, jewelry, Leather goods etc. Whether it is military product packaging testing or other product packaging testing, the above test items are independent of each other. In third-party testing agencies, businesses can only choose to test any one of them. Products that want to pass the MIL-STD-810H test under the U.S. military standard must have undergone numerous destructive tests.
https://youtu.be/KHoN4Unij34
● | For equipment that may work near helicopters flying over unpaved roads: 2.2g/m3±0.5g/m3 | Sand Blowing Concentration |
● | Equipment that will not be used or exposed near a flying aircraft, but may be unprotected, working or stored near a moving ground vehicle: 1.1g/m3±0.3g/m3 | |
● | For equipment that only bears the influence of natural conditions: 0.18g/m3+0.2g/m3 (including sand and dust concentration sensor) | |
● | Carry out 6h dust blowing test at 23℃, plus 6h high temperature storage or high temperature working dust blowing test. | Blowing Duration |
● | If necessary, stop the test after the first 6h in order to stabilize the test chamber conditions before starting the second 6h cycle. | |
● | Perform sand blowing test for at least 90 minutes on each vulnerable surface | Sand Blowing Duration |
● | If there are no other clear regulations, quartz sand is used for large sand grains (the content of silicon dioxide is above 95%). | Test Dust |
● | Quartz Powder Dosage: 5kg/m3 (70% quartz sand, 15% chalk powder, 15% kaolin) | |
● | Window for military sand and dust test chamber 400×600mm, 2 Pieces (Effective Field of View) | Observation Window |
● | System can automatically collect falling sand particles and enter the box to continue circulating | Collection System |
● | The diameter is 800mm, and it rotates counterclockwise at 1 revolution/min. | Rotating Table |
● | It provides some slots to fix the test piece. | |
● | The motor shaft of the rotating table is sealed by an O-ring seal | |
● | Strong wind is generated by a high-power centrifugal fan, and the wind speed is automatically adjusted by a frequency converter | Wind Speed Simulation System |
● | (Funnel shape) in the lower part of the test space | Dust Collector |
● | The air compressor controls the switch and air purification through the pneumatic valve on the machine | Working Principle |
● | 50kg sand can operate normally for 1 year | Sand Dust Consumption |
● | Refrigeration System, Dehumidification System | Equipment Function |
● | Wind Speed m/s, Sand Density g/m3|Military Sand And Dust Test Chamber | Equipment Function |
● | Temperature Degrees Celsius, Relative Humidity | Equipment Function |
This MIL-STD-810 standard is mainly to organize and standardize the verification of the material manufacturing process to confirm how environmental stress affects the design of military products. It is of great help to the design and development of military products for weapon systems that perform combat or support tasks in a military environment. MIL-STD-810 emphasizes the cutting of related materials to meet the environment that it will withstand during its life cycle and the corresponding items to be tested.
The purpose of this specification is to use the environmental stress obtained by careful design to eliminate excess or lack of design and testing to ensure that the environment that has an impact on the design has been considered in the design. To ensure that the test plan has been carefully and thoroughly considered to be tailored to meet the actual application environment. If you want to know more about MIL STD 810H test method 510.7 – sand and dust test machine, Please feel free to contact our technical engineers.
Testing Projects | MIL-STD-810 Military Environmental Engineering Considerations And Laboratory Tests | ||||||||
1964.06.23 | 1967.06.15 | 1975.10.03 | 1983.07.19 | 1989.07.14 | 2000.01.01 | 2008.10.31 | 2014.04.15 | ||
810A | 810B | 810BN3&N4 | 810C | 810D | 810E | 810F | 810G | 810G N1 | |
Low Pressure | 500 | 500 | 500 | 500.1 | 500.2 | 500.3 | 500.4 | 500.5 | 500.6 |
High Temperature | 501 | 501 | 501 | 501.1 | 501.2 | 501.3 | 501.4 | 501.5 | 501.6 |
Low Temperature | 502 | 502 | 502 | 502.1 | 502.2 | 502.3 | 502.4 | 502.5 | 502.6 |
Temperature Shock | 503 | 503 | 503 | 503.1 | 503.2 | 503.3 | 503.4 | 503.5 | 503.6 |
Temperature-low Air Pressure | 504 | 504 | 504 | 504.1 | Cancel | ||||
Liquid Contamination | 504 | 504.1 | 504.2 | ||||||
Solar Radiation | 505 | 505 | 505 | 505.1 | 505.2 | 505.3 | 505.4 | 505.5 | 505.5 |
Rain | 506 | 506 | 506 | 506.1 | 506.2 | 506.3 | 506.4 | 506.5 | 506.6 |
Humidity | 507 | 507 | 507 | 507.1 | 507.2 | 507.3 | 507.4 | 507.5 | 507.6 |
Mold | 508 | 508 | 508 | 508.1 | 508.3 | 508.4 | 508.5 | 508.6 | 508.7 |
Salt Spray | 509 | 509 | 509 | 509.1 | 509.2 | 509.3 | 509.4 | 509.5 | 509.6 |
Sand Dust | 510 | 510 | 510 | 510.1 | 510.2 | 510.3 | 510.4 | 510.5 | 510.6 |
Explosive Atmosphere | 511 | 511 | 511 | 511.1 | 511.2 | 511.3 | 511.4 | 511.5 | 511.6 |
Soaking | 512 | 512 | 512 | 512.1 | 512.2 | 512.3 | 512.4 | 512.5 | 512.6 |
Acceleration | 513 | 513 | 513.1 | 513.2 | 513.3 | 513.4 | 513.5 | 513.6 | 513.7 |
Vibration | 514 | 514 | 514.1 | 514.2 | 514.3 | 514.4 | 514.5 | 514.6 | 514.7 |
Noise | 515 | 515 | 515.1 | 515.2 | 515.3 | 515.4 | 515.5 | 515.6 | 515.7 |
Shock | 516 | 516 | 516.1 | 516.2 | 516.3 | 516.4 | 516.5 | 516.6 | 516.7 |
Space Simulation | 517 | 517 | 517.1 | 517.2 | Cancel | ||||
Explosion Separation Shock | 517 | 517.1 | 517.2 | ||||||
Temperature Humidity High Altitude | 518.1 | Cancel | |||||||
Acid Atmosphere | 518 | 518.1 | 518.2 | ||||||
Bombardment | 519.1 | 519.2 | 519.3 | 519.4 | 519.5 | 519.6 | 519.7 | ||
Temp Humidity Low Air Pressure Vibration | 520 | 520.1 | 520.2 | 520.3 | 520.4 | ||||
Icing/freezing Rain | 521 | 521.1 | 521.2 | 521.3 | 521.4 | ||||
Ballistic Impact | 522 | 522.1 | 522.2 | ||||||
Vibration-Noise-Temperature | 523 | 523.1 | 523.2 | 523.3 | 523.4 | ||||
Melting Snow | 524 | 524. 1 | |||||||
Time Domain Waveform Reproduction. | 525 | 525.1 | |||||||
Orbital Collision | 526 | 526.1 | |||||||
Multi-axis Vibration | 527 | 527.1 | |||||||
Maritime Vibration | 528 | 528.1 |