Technical expertise


Physical Infrastructure

DSRI has what it takes, and then some, to meet the needs of our extensive customer base. Across India and Asia-Pacific region offers unparalleled convenience and resources for the testing of defense technology.

We perform RDT&E services at our locations or at our customer’s government bases, contractor facilities or field trials. These services include CLASSIFIED and UNCLASSIFIED, accredited testing and evaluation to a wide range of industry standards and specifications including:

  • MIL-STD-461: The “Department of Defense Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment” covers the EMC and EMI requirements for all electrical and electronic equipment used in defense applications. DSRI can perform MIL-STD-461 testing in-house using highly controlled, anechoic chambers. We can also conduct MIL-STD-461 testing for components that are too large or too expensive to transport to an DSRI location.
  • MIL-DTL-901E (Previously MIL-S-901D): The “Department of Defense Requirements for Shock Tests, High Impact, Shipboard Machinery, Equipment, and Systems” is the military standard governing shock-resistance requirements for shipboard equipment. MIL-DTL-901E certification is required for principle devices, subsidiary components and subassembly components, including both those that are essential for safety and combat, and those that could become hazardous to the crew if exposed to shock. Shock testing to MIL-DTL-910E standards can be performed at various labs across the country. In fact, our speciality is heavyweight applications.
  • MIL-STD-167: The “Department of Defense Test Method Standard: Mechanical Vibrations of Shipboard Equipment” specifically covers the effects of environmentally and internally excited vibrations on shipboard equipment. Replicating these factors in a controlled laboratory environment requires powerful shakers and precise instrumentation. DSRI relies on some of the best-equipped facilities in the country for MIL-STD-167 vibration testing.

Environmental Testing

What is Environmental Testing?

Environmental testing simulates the different climatic conditions and mechanical stress that products are exposed to during their lifetime. Environmental testing will expose weaknesses in a product’s design or performance that could occur in service, particularly at extreme levels.

Why is Environmental Testing important?

In general, environmental tests demonstrate that your products have the build quality to work perfectly, no matter what the conditions. During testing, possible weaknesses can be identified and product improvements can be initiated at an early stage.

Environmental testing also helps demonstrate compliance of your products with international regulations, making it easier to access global markets. Environmental testing also boosts trust in your products.

Our facilities can simulate either single or multiple environmental conditions simultaneously. Our climatic chambers cover the extremes of temperature, altitude, humidity, temperature cycling, solar heating and corrosive atmospheres, which are continuously monitored by independent computer-controlled data collection systems. Our vibration shakers produce a range of profiles including; sinusoidal, random, sine on random, gunfire and bump among others, which are controlled and monitored by state of the art equipment and software.

JSS 55555

We undertake all tests including the following:

  • Endurance Testing
  • Tilt Testing
  • Motion Testing
  • High Temperature
  • Damp Heat
  • Drip Proof
  • Bump Test
  • Contamination Test
  • Corrosion Test (Salt / Salt Fog)
  • Tropical Test
  • Mould Growth Test
  • Vibration Test


The “Department of Defense Test Method Standard for Environmental Engineering Considerations and Laboratory Tests” covers the environmental factors encountered during the use of military equipment in all stages of its service life. MIL-STD-810 testing involves replicating these conditions in a controlled laboratory environment through the use of temperature, humidity, shock, vibration, acceleration and other simulation equipment.

Type Testing

Type Testing

What is Type Testing?

“Type testing” is a protocol where valves or pumps are tested at the operating pressure and temperature ranges specified by the manufacturer.

Why is Type Testing important?

Type testing also guarantees a valve against manufacturing defects for metallurgical failure analysis beyond the scope of in-house radiography, dye penetrant, hardness tests and XRF analysis. Our well-oiled team is well adept at carrying out Endurance Tests, Hydraulic Test, Seat Leak Test, Pneumatic Test, Pipe Wracking Test, Flow Coefficient Test, Torque Test, Life Cycle Test, SBN & ABN Test, Shock Test and Strip Test.

Failure Analysis: When a valve suffers a catastrophic failure, it is important to find out the root cause, in order to help insure that the event is not repeated. We combine the vast knowledge of our staff with a complete complement of in-house non-destructive evaluation equipment and pressure testing machines to help discover the “why” of valve failures.

In addition to the temperature and pressure testing extremes, the valves are also often required to be tested for fugitive emissions leakage during the test program. DSRI can perform type testing on valves of all sizes, materials and types.

We carry out type testing of valves or pumps as per many a standard including NES 375, MIL-STD 810G. In particular, we perform the following tests as per NES 375:

  • Endurance Tests
  • Hydraulic Test
  • Seat Leak Test
  • Pneumatic Test
  • Pipe Wracking Test
  • Flow Coefficent Test
  • Torque Test
  • Life Cycle Test
  • SBN & ABN Test
  • Shock Test
  • Strip Test

Shock and Vibration Testing

Shock Testing

What is Shock & Vibration Testing?

Shock and vibration testing ensures product performance under extreme conditions. Vibration testing and shock testing are used to simulate in a controlled laboratory environment the extreme conditions that a product may face during use, such as mishandling, dropping, and various modes of shipment.

Why is Shock & Vibration Testing important?

Shock and vibration testing provides a wealth of benefits, such as:

  • Discover if your product can withstand use in ‘the real world’
  • Comply with relevant regulations
  • Avoid costly damage during transport
  • Reduce the number of returns and defect products
  • Have total confidence that the product will remain in a good condition

Vibration Testing


Our vibration testing labs use state-of-the-art equipment to reproduce low and high frequency conditions, and to test products up to 5 tons in accordance with the requirements of MIL STD 810, MIL STD 167 & JSS 55555 among other regulations. Any additional test can be added quickly through our flexible schedule.

Our shock testing laboratories have a unique set of facilities designed to test the robustness and fragility of product samples and their packaging. We have several shock machines, a side impact machine, a compression machine, a precision drop tester and bounce facilities.

Furthermore, for long-term mechanical cycling with or without climatic conditions, our experienced engineers have the skills, facilities, and experience to build a solution for almost any testing challenge.

Depending on your product and its intended use, we will carry out the appropriate shock and vibration tests.

Typical assessments for vibration testing include:

  • Sinusoidal
  • Random
  • Sine on random
  • Swept sine on random
  • Gunfire
  • Shaker induced shock, including SRS
  • Bump
  • Hydraulic and electromagnetic shakers with a wide range of frequencies and thrust

Our shock testing capability include:

  • Free fall
  • Bump
  • Drop topple and stability
  • Bounce
  • Static load
  • Compression
  • Bending
  • Racking

EMI-EMC Testing

Electromagnetic Interference and Electromagnetic Compatibility Testing


Electromagnetic compatibility (EMC) testing measures the ability of equipment or systems to function satisfactorily in their electromagnetic environment without introducing intolerable electromagnetic disturbance to anything in that environment.


Detecting rogue signals and electromagnetic interference is crucial to the all civilian & military appliances these days. Almost everything from a cellphone to a control panel onboard on vessel produces an electromagnetic field and can potentially threaten safety, efficiency or secret communications. MIL-STD-461F is one such standard test standard that establishes requirements for the electromagnetic compatibility (EMC) of devices and systems created for and used by several organizations.

EMC certifications are a mandatory requirement in most markets, including India, Europe, US, China, Korea, Australia and New Zealand. EMC testing is necessary to help you meet regulatory requirements, improve product performance and reduce the risk of costly non-compliance. A third-party EMC test lab can conduct conformity assessments and also help to strengthen your competitive position in the market. Our testing can cover all types of products, from small appliances to large defence industry machines.

We assist you to resolve any EMC regulatory issues, from design concept to final production. We provide a one-stop service that covers all your testing and certification needs. Our experts provide project management to ensure that your EMC tests run smoothly.

You can choose to have tests performed at our labs, on your premises or anywhere your product is installed.

We undertake the following tests:


Conducted (C××× Tests)


  • CE101 - Power Leads, 30Hz to 10kHz
  • CE102 - Power Leads, 10 kHz to 10MHz
  • CE106 - Antenna Terminal, 10 kHz to 40 GHz


  • CS101 - Power Leads, 30Hz to 150kHz
  • CS103 - Antenna Port, InterModulation, 15kHz to 10GHz
  • CS104 - Antenna Port, Rejection of Undesired Signals, 30 kHz to 20 GHz
  • CS105 - Antenna Port, Cross Moduation, 30kHz to 20GHz
  • CS106 - Transients, Power Leads
  • CS109 - Structure Current, 60Hz to 100 kHz
  • CS114 - Bulk cable Injection, 10 kHz to 200MHz
  • CS115 - Bulk cable Injection, Impulse Excitation
  • CS116 - Damped Sinusodial transients, Cables and Power Leads, 10kHz to 100MHz

Radiatied (R××× Tests)


  • RE101 - Magnetic Field, 30Hz to 100 kHz
  • RE102 - Electric Field, 10kHz to 18GHz
  • RE103 - Antenna, Spurious and Harmonic Outputs, 10kHz to 40GHz


  • RS101 - Magnetic Field, 30Hz to 100kHz
  • RS103 - Electric Field, 2 MHz to 40 GHz
  • RS105 - Transient Electromagnetic Field