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MIL-STD-810-Method 504-Contamination by fluids

Clark Testing provides MIL 810 504 analysis to evaluate the equipment's resistance to contamination by various fluids such as liquids, chemicals, and particulate matter. During its life cycle, material may be accidentally or intentionally exposed to one or more fluids that could have an adverse effect on the material. As a result, exposure of material to contaminating fluids may either temporarily or permanently damage the operation of the material by changing the physical properties of the material.

By conducting MIL 810 504 test, Clark Testing will assess equipment's performance, functionality, and durability when exposed to potential fluid contaminants and to assess the equipment's ability to resist and recover from contamination by various fluids encountered during operation. The Clark Team will help identify potential issues related to ingress of fluids, degradation of materials, corrosion, electrical conductivity, and functional performance in the presence of contaminants.

Laboratory research

The test typically involves subjecting the equipment to various fluid contaminants such as water, fuels, oils, solvents, and other relevant substances. Clark’s engineers will help assess the required conditions, duration, and exposure methods as specified based on the equipment's intended use and the expected environmental conditions. We help identify required standards including sources and methods of introducing fluids to the equipment during testing. These sources can include spraying, immersion, dripping, or other means of controlled fluid application.

The standard defines acceptance criteria for contamination by fluids testing. The criteria may include allowable fluid ingress, functionality after exposure to fluids, corrosion resistance, material degradation, and other performance parameters. The equipment is assessed based on its ability to resist and recover from contamination without sustaining damage or exhibiting performance degradation beyond acceptable limits.

MIL 810 Method 504 has two procedures:

Procedure I - Large Systems: This procedure covers materiel such as aircraft systems, full-up wheeled and track vehicles, and watercraft, to name a few, where operational temperatures may be critical. The most significant parameters used in this test procedure are the fluid(s) to be used, the temperature, and the duration of exposure. It is also important to specify the operational configuration of the test item, as well as whether or not the test item is heat dissipating during operation. To assign the appropriate procedure for the test, Clark will reference Table 504.1-I Major Contaminant Fluid Groups and test fluids used as described in MIL-STD-810G 504.1.

Procedure II – Small Systems: This procedure addresses the chemical compatibility of nonmetallic materials used in small arms systems, clothing, boots, gas masks, gloves, Less Than Lethal and other ammunition, binoculars, flashlights, small arms tripods, and other material. Testing is performed at standard ambient conditions, but this procedure is more tailorable in that the immersion times and item/solution temperatures can be changed to suit the test program. The Clark Testing engineering team will implement the test procedure as detailed on Table 504 -II General test fluids used for Procedure II in MIL-STD-810 504

Call or email the test engineering team at Clark Testing to navigate the validation process and to qualify equipment to meet the rigorous test standards for Contamination of Fluids as detailed in MIL-STD-810 Method 504.

Test Set Up

In house custom design and fabrication capabilities (machining and welding) to ensure test fixtures accurately simulation environmental conditions.  FEA capabilities to support fixture design along with welding, fabrication & machining services.  Multiple vibration adapter plates and prefabricated test fixtures help to streamline the testing process.

Instrumentation capabilities including accelerometers and strain gages with multi-channel control and data acquisition equipment ensuring accurate test data is being recorded.  All instrumentation and equipment is provided with measurement uncertainty and compliant   with Clark’s ISO 17025-2017 Quality Program.

Lab technicians and engineers record daily test activities to register all activities, events, and responses during the test.  The daily test logs along with test data, pictures and test procedures are included in comprehensive test report that is the industry standard.

 We work closely with you to validate engineering, ensure quality, analyze test spectrums, and execute accurate testing programs for successful qualification and marketing of your product.

We work closely with you to validate engineering, ensure quality, analyze products and qualify equipment while supporting the time constraints and product cycles that are vital to your success.

Paul Heffernan, CEO of Clark Testing