Electrical Proficiency Testing
Verify accuracy in every measurement. NAPT's Electrical Proficiency Testing programs help calibration laboratories maintain precision, meet accreditation requirements, and build confidence across critical electrical measurement applications.
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What Is Electrical Proficiency Testing?
Electrical proficiency testing evaluates a laboratory’s capability to accurately measure and calibrate electrical parameters—including voltage, current, resistance, capacitance, frequency, and RF/microwave characteristics—using traceable reference standards and artifacts.
The Impact of PT Testing
Why Proficiency Testing Matters For Your Organization
Electrical measurement accuracy forms the foundation of equipment safety, performance verification, and regulatory compliance. When measurements drift out of tolerance, the consequences can include equipment failures, safety hazards, and costly production delays. Participating in electrical proficiency testing helps your lab:
- Maintain ISO/IEC 17025 accreditation and meet international quality standards
- Identify calibration drift and systematic errors before they impact operations
- Validate measurement methods and equipment performance across the full measurement range
- Build customer confidence through demonstrated technical competence
- Support continuous improvement in quality management systems
Driving Industry Precision
Industries That Rely on Electrical Metrology Testing
Accurate electrical measurements are essential across sectors where equipment reliability, safety, and performance cannot be compromised. NAPT’s electrical proficiency testing programs serve:
- Aerospace & Defense — Validating avionics, radar systems, and mission-critical electronics
- Medical Device Manufacturing — Ensuring patient safety through precise equipment calibration
- Energy & Utilities — Supporting grid reliability and power generation equipment
- Telecommunications — Maintaining signal integrity and network performance
- Electronics Manufacturing — Verifying test equipment accuracy throughout production
- Calibration Service Providers — Demonstrating competence across diverse electrical measurement capabilities
Electrical Testing Categories
NAPT offers proficiency testing across four specialized electrical disciplines, each addressing distinct measurement challenges:
Electrical – AC/DC
Fundamental electrical measurements form the core of most calibration programs. This category encompasses direct current (DC) and alternating current (AC) voltage, current, and resistance measurements that are essential for general-purpose electrical equipment calibration.
- Digital multimeter verification
- Voltage and current source calibration
- Resistance standard validation
- Power supply accuracy assessment
Electrical – AC/LF
Low-frequency AC measurements require specialized techniques to ensure accuracy in applications where frequency response and harmonic content matter. This category focuses on AC electrical quantities at power line frequencies and audio range.
- AC voltage and current measurement
- Power quality instrumentation
- Audio equipment calibration
- Low-frequency signal generator verification
Electrical – DC/LF
Combining DC precision with low-frequency measurement capabilities, this category addresses applications requiring both stable DC references and accurate low-frequency AC characterization.
- Precision DC voltage standards
- Low-frequency waveform generation
- Calibrator verification across DC and low-frequency ranges
- Reference standard validation
Electrical RF / Microwave
High-frequency measurements demand specialized equipment and techniques. This category covers radio frequency (RF) and microwave parameters critical for wireless communications, radar, and high-speed electronics.
- RF power sensor calibration
- Microwave attenuator characterization
- Network analyzer verification
- Signal generator accuracy at high frequencies
Available Electrical Testing Kits
NAPT offers a comprehensive catalog of electrical test kits spanning DC measurements through RF/microwave frequencies.
Common measurement parameters include:
How The Testing Process Works
Receive, Measure, Submit
Review Results
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Featured Electrical Testing Kits
DC Voltage Standard NAPT-ELECTRICAL 732B-2025
The intent of this ILC/PT is to provide a means for the participant to determine the appropriateness and effectiveness of participant practices, training, and measurement uncertainty relating to testing, calibration and maintenance of a Nominal 10 V Reference Standard within the reported uncertainty of your measurement process with measurement stability in the 0.1 ppm range.
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8.5 Digit Digital Multimeter NAPT-3458A/AC
The intent of this ILC/PT is to provide a means for the participant to determine the appropriateness and effectiveness of participant practices, training, and measurement uncertainty relating to testing and calibration of 8.5 Digit Multimeters. Participants will generate known Direct and Low-frequency Signals and report the observed artifact readings.
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