Showing results: 76 - 90 of 158 items found.
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National Technical Systems
Whenever products and materials spend extended periods of time in a humid environment, various types of breakdowns can be expected. Coatings can fail. Electronic and optical equipment tends to degrade. Fuels break down. The list of associated failures is extensive.
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National Technical Systems
NTS performs pressure, flow, and combined testing programs on flexlines, piping, storage vessels and measurement and control systems utilizing the actual fluids that these systems will use in service. NTS has the ability to test anything from heat exchangers, meters, sensors, valves and filters to high pressure storage tanks (such as those on launch vehicles and satellites) and rocket test stand fuel systems utilizing any of the following: liquid fuels, gasoline, JP1, hypergols, hydrogen, oxygen, steam, diesel, nitrogen, Skydrol, kerosene, cryogenics, ammonia, hydrogen peroxide and other substances.
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National Technical Systems
Gravelometer testing is designed to evaluate the resistance of vehicle surface coatings (paint, clear coats, metallic plating, etc.) to chipping caused by the impacts of gravel and other flying objects in accordance with SAE and ASTM standards. The primary usage of this test is to simulate the effects of the impact of gravel or other debris on automotive parts. Test samples are typically mounted in the back of the Gravelometer, and air pressure is used to project 1 pint (approximately 300 pieces) of gravel at the sample. The test sample is then removed and gently wiped off with a clean cloth. Tape is then applied to the entire tested surface. Removal of the tape then pulls off any loose fragments of the coating. The appearance of the tested sample is then compared to standard transparencies supplied by SAE to determine the chipping ratings. Visual examination can also be used to describe where in the coating/substrate system that the failure has been induced.
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National Technical Systems
MIL-STD-464 sets out minimal acceptable standards for the electromagnetic compatibility of ordnance and related equipment used in airborne, sea, space and ground-defense systems. Firing circuits contained within these devices is inherently susceptible to electromagnetic environments. Testing is critical for managing the risks associated with exposure to normally occurring EMR.
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National Technical Systems
A membrane switch is a low power electrical switch, comprised of silver or graphite impregnated ink, printed and cure bonded to a plastic substrate – polyester being the most common – and assembled with various adhesive layers and finished with a graphic overlay. Major benefits in designing a membrane switch into your product include ease of cleaning, environmental sealing, low profile, and the ability to create a visually attractive interface.
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National Technical Systems
The physical and mechanical testing of a product comprises a critical part of the product and development process. Applied physical force such as vibration, shock stresses, and strain can reveal the inelastic behavior of the material. Mechanical testing allows the product developers to understand the product better, identify vulnerabilities, and establish stronger quality control. Mechanical testing employs a variety of strength tests that can determine the suitability of a material or component for the intended application. It measures characteristics such as elasticity, tensile strength, elongation, hardness, facture toughness, impact resistance, stress fracture, and the fatigue limit.
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National Technical Systems
The importance of materials testing cannot be underestimated. Across every major industry, manufacturers, developers and operators of critically important systems, products and components need to be assured that the materials employed in forming their equipment are up to their intended tasks. That’s why the most diligent method of verifying that the materials companies use in manufacturing processes will perform to expectations and adhere to all applicable regulations is through reliable materials testing.
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National Technical Systems
When the required testing of a product includes a transport simulation test, there are several standards that various organizations have published for package testing methods. These include the International Organization for Standardization (ISO), American Society for Testing and Materials (ASTM), Military Standards (MIL-STD-810), and in more recent years the International Safe Transit Association (ISTA) whose test standards are becoming more widely accepted. ISTA has organized its test protocols into Series, and there are a total of seven Series. Testing must be performed in an ISTA certified lab and must comply with minimum requirements of a current ISTA testing procedure. But In order to perform a proper ISTA certified test, which of the series should be used?
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National Technical Systems
Lightweight Shock Machine (LWSM) Testing per MIL-DTL-901E is the military specification covering shock test requirements for shipboard machinery, equipment, systems and structures. Anyone who produces an item for military use in any of these shipboard categories will likely need to complete this testing. The purpose of this testing is to verify the ability of shipboard installations to withstand shock loadings which may be incurred during wartime service due to the effects of conventional or nuclear weapons. These requirements grew out of the Navy’s experiences during World War II and the subsequent underwater explosion (UNDEX) experiments. In many cases, it was found that critical ship systems could be disabled by the shock effects of nearby weapons explosions that were not a direct hit on the ship itself.
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National Technical Systems
From cheap toys and smartphones to sophisticated computers and radar detector systems, printed circuit boards (PCB) are critical components for today’s electronic and industrial technology. Almost every electronic device has one of these self-contained modules of complex interconnected electronic components, which include resistors, capacitors, transistors, diodes and fuses.
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National Technical Systems
NTS performs product reliability hardware testing to ensure that the quality and durability of a given product is consistent with its specifications throughout the product’s intended lifecycle. This testing can be done at both the design and production levels.
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National Technical Systems
PCB testing, or printed circuit board testing, begins with understanding that the PCB is the foundation for any printed circuit assembly (PCA).The circuit board is a top quality product that should not cause your end product to cost you money due to failures and recalls. NTS is an internationally accredited test laboratory approved for PCB testing including the bare PCB, the raw materials that the PCB is comprised of, as well as the finished PCA. The most commonly used PCB testing performance specifications for qualification, acceptance, and/or conformance are IPC-6012, IPC-6013, IPC-6016, IPC-6018, MIL-PRF-55110, MIL-P-50884, or MIL-PRF-31032.
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National Technical Systems
Advanced Polymers & Rubbers Materials have broad, proven applications, in the aircraft, aerospace, and sports equipment sectors. More specifically, APMs are very attractive for aircraft and aerospace structural parts. APMs have continued to develop due to NASA’s Advanced Space Transportation Program. Additionally, advanced polymer materials have decades of history in military and government aerospace industries. However, much of the technology is now being developed for secondary or commercial markets, as the technology of advanced plastics manufacture is continually evolving.NTS has the capabilities to assess the mechanical strength and integrity of these materials and provide you with the data required to evaluate the performance of the product applications.
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National Technical Systems
NTS can perform testing to evaluate the performance of your product. Benchmarking, load/stress testing and scalability all fall under the umbrella of performance testing. Performance and benchmark testing typically includes evaluating a hardware or software product to determine how effective it is at performing its functionality, whatever that may be. For example, a graphics adapter can be measured in frames per second in a popular game, number of smooth shaded triangles per second or similar measures. Comparing the performance of multiple products against each other typically falls under the heading of “competitive analysis testing.”
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National Technical Systems
The ability of military-grade personal protective equipment (PPE) to withstand a ballistic impact is critical. Proper testing is a requirement of any product covered by MIL-H, MIL-STD, NIJ and other regulatory standards. National Technical Systems (NTS) — one of the largest networks of testing labs in the country — performs industry-leading destructive material testing out of its Wichita, Kansas and Chesapeake, Maryland locations. Staffed by expert engineers who can develop a comprehensive testing routine for your product, NTS is a key partner to the defense contractors whose products are keeping American troops and law enforcement officials safe around the world.
