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Dimensional

  • Length
  • Diameter and Roundness
  • Complex Dimensional Standards
  • Optical Reference Plane Standards
  • Angular
  • Laser
  • Surface

Electromagnetic

  • Resistance
  • High-Voltage Standard Resistors
  • Impedance
  • High-Frequency Standard Capacitors and Inductors
  • Power-Frequency Capacitor
  • Q-Standard
  • Voltage
  • DC Voltage and Measurement Standard
  • AC Voltage
  • AC-DC Thermal Voltage and Current Converters
  • Precision Ration
  • Inductive Dividers
  • Resistive Dividers
  • Capacitive Dividers
  • Voltage and Current Transformers
  • Phase Meters and Standards and VOR
  • Power and Energy Measurements, Low Frequency
  • RF, Microwave and Millimeter-Wave
  • Thermistor Detectors
  • Scattering Parameters of Passive Multi-Port Devices
  • Thermal Noise
  • Electromagnetic Field Strength and Antenna
  • Microwave Antenna Parameter
  • Field Strength Parameter
  • High-speed Repetitive Waveform
  • Pulse Waveform

Ionizing Radiation

  • Radioactivity
  • Neutron Sources and Neutron Dosimetry
  • Dosimetry of X-ray, Gamma-Rays and Electrons
  • Dosimetry for High-Dose Applications

Mechanical

  • Hydrometers
  • Volume and Density
  • Flow Measurements
  • Flow Measurements at Cryogenic Temperatures
  • Air Speed Instruments
  • Mass Standards
  • Force
  • Vibration
  • Acoustic

Optical Radiation

  • Photometric
  • Ozone
  • Optical Properties of Materials
  • Surface Color and Appearance
  • Spectroradiometric
  • Spectroradiometric Source
  • Spectroradiometric Detector
  • Radiometric Standards in the Far Ultraviolet
  • Standard Detectors in the Far Ultraviolet
  • Lasers and Optoelectronic Components Used with Lasers

Thermodynamic Quantities

  • Pressure
  • Low Pressure, Vacuum and Leak
  • Laboratory and Industrial-Grade Thermometers
  • Thermocouples, Thermocouple Materials, Thermometer Indicators
  • Resistance Thermometry
  • Radiance Temperature
  • Humidity
  • Thermal Resistance

Time and Frequency

  • Broadcast and Measurement Services
  • Characterization of Oscillators
  • PM/AM Noise Measurement Systems