Graphic: MIL-STD-810 is used by the military and across various industries to validate a product's readiness for harsh or extreme environments.
Note: Trenton Systems is not a compliance testing facility. We manufacture rugged servers and workstations that conform to military and industrial standards, such as MIL-STD-810 and DO-160, and we can ensure that our systems comply with these standards using our in-house testing equipment, or by sending our systems to a third-party compliance testing laboratory for validation, but our facility does not offer compliance testing services for products manufactured outside of Trenton Systems. For a list of laboratories that can assist you with your testing needs, please read this blog post, which lists the best compliance testing laboratories in the world.
In this blog, we'll dive into the United States Military Standard.
We'll go over things like:
To help you grasp the importance of the various Military Standards and Test Methods of the MIL-STD-810G, I'll briefly describe a common scenario where Rugged Military Computers are put to the ultimate test.
High above the clouds, a military aircraft flies through the sky and collects intel. Man and machine work together to crunch the influx of data rushing through the rugged servers.
Suddenly, turbulence. Lots of it.
The aircraft drops in altitude, internal temperature fluctuates quickly, high bursts of shock and vibration are felt throughout the airplane. The scene plays out for a few minutes.
Then, as quickly is it occurs, it's over.
The pilot stabilizes the aircraft, flies to the desired altitude, and things are back to normal.
In the above scenario, a computer can go from top-performance to critical system failure in a matter of seconds.
Intense shock can break a vital component, persistent vibrations can knock PCIe cards loose, and temperature fluctuations can overheat the entire system causing it to crash.
Thankfully, properly designed rugged military servers and workstations, certified to Military Standards, are prepared for this. In other words: designed, manufactured, and tested to battle harsh conditions with ease.
In the United States, the Military Standard (also written as MIL-STD) is enforced by the Department of Defense and maintained by the U.S. Air Force, Army, and Navy. It exists to ensure products meet specific requirements for various defense-related purposes.
Note: The MIL-STD is not only used in the Military sector but also across non-defense organizations because of the thorough test methods that validate a product's readiness for extreme conditions.
There are over 40 Military Standards and a profusion of Test Methods encompassing a myriad of use cases. Some of the most popular MIL-STDs that Ruggedized Computers test for are:
In this blog, we'll cover the widely used and most popular Military Standard: MIL-STD-810G.
The letter that follows the Military Standard depicts the current revision. There is no particular time-frame that must pass for a revision to occur but it does go in alphabetical order.
The current revision, issued Jan. 31, 2019, is MIL-STD-810H.
To put it bluntly, the MIL-STD-810 addresses a broad range of environmental conditions. It consists of Test Methods, each testing to various parameters.
This is why companies across all industries turn to the MIL-STD-810G to validate their products as ruggedized.
A lot of rugged computer manufacturers make the claim that their high-performance computers are certified to MIL-STD-810G.
Some vendors perform in-house testing and claim 'compliance'. This is simply not true, even if the tests are more stringent.
It is up to the purchaser to ask the right questions to determine the validity of these claims.
If you are in the market to purchase ruggedized servers that are certified to MIL-STD-810G, do yourself a favor and ask for the Test Methods it was certified to.
Don't stop there! Dig deeper and ask for the test results.
You need to to know what the parameters were that the rugged server was tested to and how did it do.
Question Tip Sheet:
The tests are quite costly.
Each test is per exact product specifications. Any minor deviation is outside of scope.
But, rugged computers can be modified a million different ways, so it's unrealistic to expect a rugged computer manufacturer to test each variation.
Often times, the tests are performed on the most demanding configuration for assurance.
If your program requires the certification to be done exactly per spec, mention it to the vendor. They should oblige to certify your exact configuration depending of course on your requirements and time-frame.
I've mentioned before that the MIL-STD-810G covers a broad range of environmental circumstances that determine the overall ruggedness or durability of a computer system.
The standard, 804 total pages, is broken up into three parts:
Most vendors focus on the Test Methods and let a third-party test lab worry about the program guidelines. Simply because the Test Methods dictate the rugged computer system's environmental worthiness and durability and the cost to the vendor.
I'll briefly summarize each Test Method so you can decide which is the best for your product or program.
The purpose of this method is to determine if a product can operate in a low pressure setting or withstand swift pressure changes. It does not cover products that are to be installed or operated in space.
This test is used to determine the effects on the material as well as performance of the rugged computer under high temperature conditions. Not for long-term exposure to high temps or if you're trying to determine the effects of degradation on a rugged server.
Much like the previous test method, it ensures proper material reliability during low temps but it also focuses on performance during storage, operation, and manipulation. Don't use this test method if you plan on having the product in an unpressurized environment.
This would be a great test for our Aviation & Aerospace Scenario we discussed at the beginning of this blog. It is used to determine sudden changes in temperature and its effect on the physical rugged server as well as performance.
If you are expecting exposure to liquids during the life cycle of the program or application, whether that's temporarily, intermittently, or for long periods of time, this test method will ensure proper performance as well as the physical effects on the computer as a whole.
Use this test method if you are expecting your rugged computer to be exposed to solar radiation, such as direct exposure to sunlight.
This test, even though it states "rain", is not only for environments that experience a lot of rainfall but it deals with other factors such as water spray or dripping water during storage, transport, or operation. The rugged chassis plays a major role here as it helps prevent any water intrusion to the internal system components.
This test methods combines heat and water and measures the effects on the rugged server when exposed to warm, humid atmospheres.
Believe it or not, this actually happens. A computer system can have fungal growth, and it may impact the metal and/or performance. This Test Method tests how the system would work under those rare circumstances if fungal growths were a problem.
If there's a protective coating on a rugged computer, it needs to get tested as well for its effectiveness. Not only that, this Test Method ensures that even if salt deposits make it onto the physical or electrical components of the rugged computer, it will work just fine.
Covering two actual tests in one, this is quite a popular Test Methods for programs or applications that will put rugged computers in environments where dust or sand particles are a concern. It tests the openings and crevices of the rugged computer and measures the effectiveness of filters. The test does span into performance parameters as well, meaning how is the rugged server doing if under these conditions and if particles do penetrate the exterior enclosure.
This test does not measure the ruggedness of the computer around explosive material rather it measures if the computer can operate in a fuel-air atmosphere without causing an explosion or if an explosive or burning reaction occurs, will it be contained within the rugged server. A popular test method for the Oil & Gas industry.
Yes. Exactly what it sounds like. This is a test method that measures how well a rugged computer can perform while immersed or partially immersed in water. It measures performance before, during, and after the procedure to arrive at a conclusion.
Perfect for aircraft-dependent programs or applications. This test method ensures that a rugged computer can function properly when exposed to the high accelerations an aircraft may pose.
A very popular method! When vendors state 'shock & vibe certified', this is one of the methods that they are referring to. It ensures the rugged components function appropriately through vibration levels.
Think noise test. If there are acoustics that could potentially affect the performance of the computer, this test makes sure to identify said problem.
If you want to remember one Test Method, this would be it. The infamous Shock testing method, most searched for test method: MIL-STD-810G 516.6. It measures how effective a rugged computer is in withstanding shock during transportation, handling, and service. Passing this Test Method is the equivalent of being able to call your computer rugged by military standards.
Tests how well a rugged server performs when a nearby explosive shock goes off. It looks at how structurally sound the rugged chassis is during and after the explosion and how well the overall system maintains stability.
This test determines how a rugged computer and its coating withstand corrosive atmospheres and at times even during operation.
Another popular test method that measures how well a rugged server can withstand the short bursts of gunfire shock and if it will have a negative impact on the performance of the system.
Similar to other test methods already covered, but yet quite different. It measures how well a rugged computer system squares up to all of the environmental factors combined. This does not only apply to aircraft but can also be used on ground vehicles, obviously at that point the Altitude portion of the test is omitted.
A test that validates a rugged computer under freezing conditions that may cause a system to freeze or ice over. This method also covers the way in which operators can administer to defrost the system without harm.
This is another variation of a shock test where a rugged computer is tested against infrequent shock effects caused by elevated levels of momentum. Think of a moving object where the computer sits and a sudden stop occurs. Think like a crash test from high speed to zero or vice versa. Simply put, abrupt momentum shift.
Another mixed test method where multiple environmental factors are tested at once. This method, however, focuses on externally carried aircraft stores during flight.
All about the changes of going from a solid to a liquid or vice versa state. If a computer froze over and it is currently thawing, what are the effects on the overall system structure and performance.
Ever heard the expression "to withstand the test of time"? This is the method for that. If a rugged computer is known to be exposed to certain harsh conditions, this test method ensures how long it can withstand its own environment before changes start to occur.
During transport, a lot of things can happen. This test ensures that the rugged server will survive likely scenarios of car impact during transport.
All about replication of an entire environment. Whether derived from actual reports or replicated at best ability of the test lab, this test method applies multiple stress factors at once to see how well the rugged computer system will battle until it starts to show signs of weakness.
Strictly for shipboard equipment installed on ships, the test method measures environmental or internal vibrations and its effects on the computer.
There you have it, a brief summary of each Test Method from the MIL-STD-810G Military Standard.
It should help you better understand which test method makes sense for your program or application and also arm you with the right questions to ask a rugged computer manufacturer before you simply accept a vague answer at face value.
There are multiple test labs that certify rugged computers to MIL-STD-810G (among various other Military Standards).
These testing houses are approved to run these tests according to Part One of the MIL-STD-810G Standard.
If you need such a test lab to run you through what it takes to certify a rugged computer or to put your products through the ultimate rugged gauntlet, please take a look at The List of Best Compliance Testing Laboratories (Domestic & International) and give one a call.
Ask them what it takes to certify to MIL-STD-810G and arm yourself even further to understand all the ins and outs of this popular Military Standard.
Hope this blog will be a helpful resource to you in understanding what all goes into the MIL-STD-810G and how much work needs to be done to certify a rugged computer to its various Test Methods.
If you would like to have the 804-page document for your keepsake, I've included a copy of the latest revision for you below.
If I've missed anything or you have further questions, feel free to leave a comment below and make sure to subscribe to our newsletter where you can receive the latest industry news.
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Talk to you soon!
Update 06/01/2020: Learn all about the different MIL-STD-810 test methods in our MIL-STD-810H series. Read the first installment here.
Update 05/11/2020: Check out our blog post on MIL-STD-810 servers and how they're enhancing military defense worldwide.
Update 05/05/2020: Check out our blog post on MIL-STD-810H to read about the standard's newest revision and its changes.