UL Testing

UL Testing

NTS is a Certificated Agency Program (CAP) company providing full UL Engineering and Administrative Client Agent Services and Testing to provide our customers with the dedicated resources and knowledge to achieve UL Recognition.

UL’s testing services are organized into sections that evaluate specific types of products. To establish recognition, manufacturers are requested to submit samples for assessment in accordance with specific UL standards. NTS performs the applicable evaluation and testing of these samples and then assembles the data packet for UL review. Upon compliant results, UL then evaluates the test data and makes the final determination as to whether a product is eligible for recognition. Upon test data review and acceptance by UL, Notification of Authorization (NofA) is issued to the manufacturer to apply the UL certification mark to their products.

Click here to download our UL Testing Capabilities flyer.
Click here to download our UL Test Pattern Artwork Guide.

UL Test Capabilities

Approved under UL Data Acceptance Program (DAP)

NTS provides immediate processing of your UL test program, personalized service and highest level of technical support for testing your products for UL Recognition. NTS is a Certified UL Administrative and Engineering Agency for the following categories indicated below. We specialize in UL 796, UL 796F, UL 746A, UL 746B, UL 746E, UL 746F and UL 94 Flammability testing with unmatched experience evaluating industrial Laminates, Plastics, HDI Materials, Printed Circuit Boards (PCBs) and soldermask materials.

UL94 – Flammability of Plastics Materials

  • 94HB Horizontal Burning Test
  • 94V-0, V-1, or V-2 Veritical Burning Testing
  • HBF, HF-1, HF-2 Horizontal Buring Foamed Materials
  • VTM-0, VTM-1, or VTM-2 Thin Material Vertical Burning Test

UL 746A – Polymeric Materials – Short Term Property Evaluations

  • Ash Content
  • Comparative Tracking Index (CTI)
  • Deflection Temperature of Polymeric Materials Under Load
  • Dielectric Breakdown and Voltage Strength
  • Flexural Strength
  • Glow Wire Ignitability (GWI)
  • High Current Arc Ignition (HAI)
  • High Voltage Arc Resistance (HVAR)
  • High Voltage Arc Tracking Rate Resistance (HVTR)
  • High Voltage, Low Current Dry Arc Resistance (D495)
  • Hot Wire Ignition (HWI)
  • IZOD Impact Strength
  • Moisture Absorption
  • Specific Gravity of Polymers
  • Tensile Impact
  • Tensile Strength of Thermoplastic Polymeric Materials
  • Tensile Strength of Thin Polymeric Sheeting
  • Vicat Softening Point for Polymeric Materials
  • Volume and Surface Resistivity

UL 746B – Polymeric Materials – Long Term Property Evaluations

  • Relative Thermal Index Based Long Term Thermal Aging (LTTA)

UL 746E – Polymeric Materials – Industrial Laminates, Filament Wound Tubing, Vulcanized FIber and Materials used in Printed Wiring Boards

  • Bond Strength
  • Delamination and Blistering
  • Dissimilar Dielectric Materials Thermal Cycling
  • Flammability: Metal Clad Laminates and Permanent Coatings
  • Microsectional Analysis
  • Thermal Shock

UL 746F – Polymeric Materials – Flexible Dielectric Film Materials for use in Printed Wiring Boards and Flexible Materials Interconnect Constructions

  • Ambient Bend
  • Bond Strength
  • Cold Bend
  • Cover Layer
  • Delamination
  • Flammability
  • Microsectional Analysis
  • Repeated Flexing
  • Thermal Shock

UL 796 – Printed Wiring Boards

  • Blistering
  • Bond Strength
  • Delamination
  • Flammability
  • Thermal Cycling

UL 796F – Flexible Materials Interconnect Constructions

  • Ambient Bend
  • Bond Strength
  • Conductive Paste Adhesion
  • Cover Layer
  • Cold Bend
  • Delamination
  • Dissimilar Dielectric Materials
  • Thermal Cycling
  • Plating Adhesion
  • Repeated Flexing
  • Silver Migration
  • Stiffener Bond Strength
  • Thermal Shock

UL Subject 5703 – Outline of Investigation for Determination of the Maximum Operating Temperature Rating of Photovoltaic (PV) Materials

Short Term Aging and Pre-Screen Testing

UL Certificated Agency Program (CAP) Scope

ZPMV2 – Wiring, Printed – Component (Rigid PCB’s)

ZPXK2 – Wiring, Printed-Flexible Material Constructions – Component (Flexible and Flex-Rigid PCB’s)

QMTS2 – Polymeric Materials – Filament-wound Tubing, Industrial Laminates, Vulcanized Fibers, and Materials for Use in Fabricating Recognized Printed Wiring Boards – Component

QMJU2 – Coatings for Use on Recognized Printed Wiring Boards – Component (solder masks)

QMFZ2 – Plastics – Component

OCDT2 – Insulating Devices and Materials, Miscellaneous – Component

For additional information or to start our UL test program with NTS, contact us today.

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