National Technical Systems

Established in 1961, NTS has been working on the world’s most complex engineering projects for over 60 years. Whether it’s Apollo 11, NASA’s Artemis program, the ITER nuclear reactor, or the latest EV projects, NTS continues to push the boundaries of testing innovation.

  • 1-800-270-2516
    (714) 450-9100
  • (714) 450-9111
  • 4603B Compass Point Road
    Belcamp, Maryland 21017
    United States

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Showing results: 16 - 30 of 163 items found.

  • Simulation and Modeling Services for Lightning Protection

    National Technical Systems

    According to the best meteorological estimates, the surface of the earth is struck by lightning approximately 100 times each second, which averages out to about 8 million strikes per day. In addition, the Federal Aviation Administration reports that the average commercial aircraft gets hit by lightning on average about once for every 1,000 hours of flight it completes, which amounts to approximately once a year.With statistics like these, it’s obvious that providing adequate lightning protection to electrical components is crucial — whether that’s onboard an aircraft or as part of a ground-based facility. Fortunately, at NTS, we’ve been helping companies do just that for well over 50 years. Thanks to our lightning simulation and modeling services, companies are able to develop high-quality products that meet with their respective compliance regulations — from military and defense to Airbus and Boeing published standards.

  • Thermo Gravimetric Analysis (TGA)

    National Technical Systems

    Thermo Gravimetric Analysis (TGA) is a thermal analysis technique used to measure changes in the weight (mass) of a sample as a function of temperature and/or time. TGA is commonly used to determine polymer degradation temperatures, residual solvent levels, absorbed moisture content, and the amount of inorganic (noncombustible) filler in polymer or composite material compositions.

  • Thermo Mechanical Analysis (TMA)

    National Technical Systems

    TMA is used to characterize linear expansion, glass transitions, and softening points of materials by applying a constant force to a specimen while varying temperature. For expansion measurements, a probe rests on a sample on a stage with minimal downward pressure. Other constant force experiments include measurement of penetration, bending, tension, shrinkage, swelling, and creep (sample motion measured as a function of time under an applied load).

  • Volume and Surface Resistivity

    National Technical Systems

    Volume resistivity represents an insulating material’s resistance to leakage current through its body. It calculates the ratio of the potential gradient in relation to the current in a material with the same density. A direct-current resistance between opposing faces of a one-meter cube of the material numerically equates to volume resistivity in SI (Ohm-m).

  • Standard Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position

    ASTM D635 - National Technical Systems

    This test method was developed for polymeric materials used for parts in devices and appliances. The results are intended to serve as a preliminary indication of their acceptability with respect to flammability for a particular application. The final acceptance of the material is dependent upon its use in complete equipment that conforms with the standard applicable to such equipment.

  • Tensile Properties of Thin Plastic Sheeting

    ASTM D882 - National Technical Systems

    This test method covers the determination of tensile properties of plastics in the form of thin sheeting and films (less than 1.0 mm (0.04 in.) in thickness). Film is defined in Terminology D883 as an optional term for sheeting having a nominal thickness no greater than 0.25 mm (0.010 in.). Tensile properties of plastics 1.0 mm (0.04 in.) or greater in thickness shall be determined according to Test Method D638. This test method can be used to test all plastics within the thickness range described and the capacity of the machine employed. Specimen extension can be measured by grip separation, extension indicators, or displacement of gage marks. The procedure for determining the tensile modulus of elasticity is included at one strain rate. The modulus determination is generally based on the use of grip separation as a measure of extension; however, the desirability of using extensometers, is recognized and provision for the use of such instrumentation is incorporated in the procedure. Test data obtained by this test method is relevant and appropriate for use in engineering design. The values stated in SI units are to be regarded as the standard. The values in parentheses are provided for information only. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

  • Aircraft Lightning Test Methods

    EUROCAE ED-105 - National Technical Systems

    The EUROCAE ED-105 is the Aircraft Lightning Test Methods published by the European Organization for Civil Aviation (EUROCAE). The document is one of a set covering the whole spectrum of aircraft interaction with lightning. Its intent is to describe how to conduct lightning direct effects tests and indirect effects tests

  • Ballistics Testing

    National Technical Systems

    Ballistics testing is a critical component of the QA processes associated with MIL-STD-810 and other regulatory guidelines. At NTS, we have more than 50 years of experience helping defense contractors meet these challenges while developing more effective tools and technologies for America’s troops. With a number of ballistics testing facilities throughout the country, we specialize in meeting your project’s requirements in a safe and cost-effective manner. Our team of in-house engineers is comprised of recognized experts in their field, and our testing labs are equipped with some of the most sophisticated measurement and analysis tools available today.

  • Altitude Testing

    National Technical Systems

    Products and equipment used at excessive heights need to be durable enough to withstand the extreme conditions they will face. Accurately replicating temperature, humidity and atmospheric conditions requires specially designed facilities in which controlled, precise altitude testing can be performed.

  • Ballistic And Military Standards Testing

    National Technical Systems

    NTS has been serving the needs of the U.S. government, military, and commercial sectors for fifty years. NTS technical experts have the knowledge, experience and dedication to successfully conduct extensive evaluation and testing programs. We can provide complete turnkey solutions for MIL-STD testing and other compliance programs, helping you manage risk, improve safety and develop better products overall.

  • Acoustic Testing

    National Technical Systems

    Different types of devices have different thresholds for acceptable amounts of acoustic noise. Acoustic testing services assess how your product will perform in real-world conditions, and whether or not further revisions should be made to reduce noise. At NTS, we have more than 50 years of experience performing acoustic noise testing and monitoring. We can determine an appropriate testing protocol for your needs, and ensure it is completed to the highest possible standards at one of our many test centers located across the country.

  • Acceleration Testing

    National Technical Systems

    Acceleration testing provides engineers with data on the behavior of materials and equipment when the test items are subjected to acceleration forces (typically measured in terms of g-forces) applied slowly and held steadily for extended periods of time. Acceleration testing specifically avoids creating shock, vibration, or dynamic (resonant) responses in test items.

  • Analytical Modeling and Test Services for Lightning Phenomena Challenges in the Wind Turbine Systems and Structures

    National Technical Systems

    NTS’ Pittsfield, Massachusetts facility has long been involved in the wind power industry. Our participation in the IEC TC-88 PT 24 committee which is responsible for releasing the wind industry test standard IEC 61400-24 and the development of our analytical modeling capabilities enable our engineering department to provide the design evaluation and testing services your wind power products require.

  • CA Seismic Testing

    National Technical Systems

    Construction practices and equipment installations in earthquake-prone areas pose a special set of challenges to engineers. No structure is isolated from seismic activity.Recognizing this danger, governing jurisdictions in seismically active areas — such as California, Alaska and other affected areas — have adopted codes and standards. These standards require structures and equipment to maintain their integrity in spite of earthquakes, making seismic testing a vital part of validating prototypes and designs. Even if specific codes and standards do not exist within a given earthquake-prone jurisdiction, engineers may still need to provide assurance that their designs will withstand certain amounts of seismic activity. This helps protect equipment and provides safety to personnel.

  • Bird Strike Testing

    National Technical Systems

    Many people may consider flocking birds such as sea gulls, ravens, and pigeons to be a nuisance but otherwise harmless. However, to jet aircraft and individuals carried aboard, the possibility of a bird strike poses an existential threat. For instance, when U.S. Airways Flight 1549 crashed into the Hudson River in New York back in January, 2009, the subsequent investigations performed by the NTSB and FAA found that a double bird strike during take-off (one in each engine) caused the incident.

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