Capabilities

The ORNL Metrology Laboratory provides on-demand pipette calibration and maintenance using a state-of-the-art pipette calibration system located on-site in the Metrology Lab.  ORNL Metrology is capable of performing calibrations and maintenance on both Air Displacement and Positive Displacement pipettes.  Pipette calibration and maintenance services are available for almost any brand pipette.  Parts for the most popular pipettes used at ORNL are stocked in the Metrology Lab to provide fast service.  Pipette calibration and maintenance services include the following features:

Pipette Maintenance Service

• Complete disassembly, inspection, cleaning and lubrication
• Replacement of broken, worn or damaged parts, as needed
• Functional testing

Note:   Selection of “Maintenance Only” service is recommended only for those pipettes whose purpose is dispensing only.   There is no calibration of the pipette performed during this service procedure.  External means, other than the pipette indication,  should be used to determine the volume of liquid dispensed using pipettes receiving “Maintenance Only” service.  If the pipette volume setting is to be used to measure the dispensed liquid, it is strongly recommended that a complete calibration be performed to establish the performance of the pipette.

Pipette Calibration Service

• “As-Found” data is collected and reported to establish the pipette performance as received in the Metrology Lab
• Complete pipette maintenance as described above
• Full calibration of the pipette including adjustment  and collection of “As-Left” data
• Complete calibration report, including “As-Found” and “As-Left” data and conformity analysis (Pass/Fail status).
• All measurements are fully NIST-Traceable with well-established uncertainties
• Systematic calibration uncertainty as low as 0.415 micro liters (K=2)
• Random calibration uncertainty as low as 0.055 micro liters (K=2)

ORNL Metrology Laboratory (ORNL ML) maintains a variety of mass standards traceable to SI (International System of Units) through the National Institute of Standards and Technology (NIST) and other international primary laboratories. These standards are required to perform traceable calibrations of our customer’s instruments and equipment. ORNL ML can provide accredited calibrations for mass sets and analytical balances within the ranges detailed in our Scope of Accreditation. However, traceable, non-accredited calibrations are available for mass parameters outside of our Scope of Accreditation. The tables below list our accredited capabilities. Our entire Scope of Accreditation includes complete details of our accredited capabilities.

If you have questions about our mass capabilities, please contact the ORNL Metrology Laboratory  for more information.

* This parameter is accredited for field service, reported uncertainties may be higher due to environmental conditions.

The ORNL Metrology Laboratory maintains the capability to calibrate and adjust force indicators and transducers.  All calibrations are traceable to the SI through an unbroken chain of comparisons to recognized national measurement institutes, ratiometric techniques or natural physical constants. The calibration system used to derive accredited data complies with the requirements of ISO/IEC 17025.   Typical types of force equipment calibrated by the ORNL Metrology Laboratory include analog and digital crane scales, dynamometers and load cells in both tension and compression modes.

The ORNL Metrology Lab provides provides accredited and non-accredited calibrations for any force parameters within the ranges detailed below. See the following link Scope of Accreditation for the entire listing of our accredited ranges.

The tables below list both our accredited and non-accredited capabilities. See the following link Scope of Accreditation for the entire listing.

If you have questions about our force capabilities, please contact the ORNL Metrology Laboratory for additional information.

Force Tension and Compression
(NVLAP Code: 20/M06)

* See Scope of Accreditation for accredited discipline uncertainty values.

ORNL Metrology Laboratory (ORNLML) maintains a variety of pressure and vacuum standards with calibrations traceable to the SI through an unbroken chain of comparisons to recognized national measurement institutes, ratiometric techniques or natural physical constants. The calibration system used to derive accredited data complies with the requirements of ISO/IEC 17025.These standards generate and measure various pressure and vacuum properties required to perform traceable calibrations of our customers’ instruments and equipment.  ORNLML can provide accredited calibrations for any pressure parameters within the ranges detailed in our Scope of Accreditation. However, traceable non-accredited calibrations are available for pressure and vacuum outside of our Scope of Accreditation. The tables below list both our accredited and non-accredited capabilities. Our Scope of Accreditation includes complete details of our accredited capabilities.

Typical types of equipment the ORNLML performs pressure and vacuum calibrations on are: Pressure gauges and transducers, barometers, manometers, capacitance gauges and vacuum gauges.

If you have questions about our pressure and vacuum capabilities, please contact the ORNL Metrology Laboratory for more information.

* See Scope of Accreditation for accredited discipline uncertainty values.

The ORNL Metrology Laboratory (ORNLML) maintains a variety of temperature and humidity standards with calibrations traceable to SI through an unbroken chain of comparisons to recognized national measurement institutes, ratiometric techniques or natural physical constants. The calibration system used to derive accredited data complies with the requirements of ISO/IEC 17025. These standards generate and measure various temperature and relative humidity properties required to perform traceable calibrations of our customers’ instruments and equipment.  ORNLML can provide accredited calibrations for any temperature and relative humidity parameters within the ranges detailed in our Scope of Accreditation. However, traceable non-accredited calibrations are available for temperatures outside of our Scope of Accreditation. The tables below list both our accredited and non-accredited capabilities. Our Scope of Accreditation includes complete details of our accredited capabilities.

Typical types of equipment the ORNLML performs temperature and relative humidity calibrations on are: Thermistors, Standard and Industrial Platinum Thermometers (SPRT, IPRT), Liquid in Glass Thermometers, Thermocouples, Temperature/Humidity Chart recorders, hygrometers.

If you have questions about our temperature and relative humidity capabilities, please contact the ORNL Metrology Laboratory for more information.

* See Scope of Accreditation for accredited discipline uncertainty values.

ORNL Metrology Laboratory (ORNLML) maintains a variety of electrical standards with calibrations traceable to SI through an unbroken chain of comparisons to recognized national measurement institutes, ratiometric techniques or natural physical constants. The calibration system used to derive accredited data complies with the requirements of ISO/IEC 17025. These standards generate and measure various electrical properties required to perform traceable calibrations of our customer’s instruments and equipment. ORNLML can provide accredited calibrations for any electrical parameter within the ranges detailed in our Scope of Accreditation. However, traceable non-accredited calibrations are available for electrical parameters outside of our Scope of Accreditation. The tables below list our accredited capabilities. Our entire Scope of Accreditation includes complete details of our accredited capabilities.

Typical types of equipment the ORNLML performs electrical calibrations on are: oscilloscopes, multimeters from hand held 3.5 digit to laboratory 8.5 digit models, clamp type ammeters, resistors both fixed and decade, frequency counters and insulation testers.

If you have questions about our electrical capabilities, please contact the ORNL Metrology Laboratory for more information.

* See Scope of Accreditation for accredited discipline uncertainty values.

The ORNL Metrology Laboratory maintains the capability to calibrate and adjust torque wrenches and torque transducers.  All calibrations are performed using standards with calibrations traceable through an unbroken chain of comparisons to recognized national measurement institutes, ratiometric techniques or natural physical constants. The calibration system used to derive accredited data complies with the requirements of ISO/IEC 17025.   Typical types of torque equipment calibrated by the ORNL Metrology Laboratory include torque wrenches, torque transducers, field torque wrench calibrators, etc.

The ORNL Metrology Lab provides accredited calibrations for any torque parameters within the ranges detailed in our Scope of Accreditation. In addition, traceable non-accredited calibrations are available for torque wrench calibrations from a range of 600-2000 ft lb.

The tables below list our accredited capabilities. See the following link Scope of Accreditation for the entire listing.

If you have questions about our torque capabilities, please contact the ORNL Metrology Laboratory for additional information.

* See Scope of Accreditation for accredited discipline uncertainty values.

ORNL Metrology Laboratory (ORNL ML) maintains a variety of gas flow standards that generate and measure various gas flow properties to perform calibrations traceable to SI through an unbroken chain of comparisons to recognized national measurement institutes, ratiometric techniques or natural physical constants. The calibration system used to derive accredited data complies with the requirements of ISO/IEC 17025. These standards generate and measure various gas flow properties required to perform traceable calibrations of our customer’s instruments and equipment. ORNL ML can provide accredited calibrations for any gas flow parameter within the ranges detailed in our Scope of Accreditation. However, traceable non-accredited calibrations are available for gas flow parameters outside of our Scope of Accreditation. The tables below list our capabilities. Our entire Scope of Accreditation can be found at the following link.

Gas flow rotameters and flowmeters, laminar flow elements, mass flow controllers and meters, and Bubble-O-Meters are instruments that can be calibrated at ORNL ML. If you have questions about our gas flow capabilities, please contact the ORNL Metrology Laboratory for more information.

* See Scope of Accreditation for accredited discipline uncertainty values.

The ORNL Metrology Laboratory provides air velocity/air speed calibrations traceable to the SI through an unbroken chain of comparisons to recognized national measurement institutes, ratiometric techniques or natural physical constants. The calibration system used to derive accredited data complies with the requirements of ISO/IEC 17025.  Calibration capabilities include thermal anemometer, vane anemometer, propeller anemometer, swinging-vane anemometer, sonic anemometer, ultra-sonic anemometer, pitot tubes and laser-doppler anemometer. Our uncertainties are very similar to the uncertainties offered by NIST in their wind tunnels.

Following are the  best measurement capabilities for the air velocity/air speed calibration capabilities offered by the ORNL Metrology Laboratory.  To view the entire ORNL NVLAP scope of accreditation, please see our NVLAP scope.

* See Scope of Accreditation for accredited discipline uncertainty values.

The ORNL Metrology Laboratory maintains a wide range of dimensional calibration and inspection capabilities.  The ORNL Metrology Laboratory provides NVLAP-accredited calibrations for micrometers and calipers (up to 12 inches). The ORNL Metrology Laboratory can also provide a wide range of non-accredited, but fully-NIST-traceable calibrations and inspection services for the following:

• Gage Blocks up to 4 inches
• Vision Measuring Machine inspections
• CMM Inspections
• Roundness
• Surface Finish
• Optical Comparator Inspections
• Length using Mahr-Federal Length Measuring Machine
• Micrometers (NVLAP-Accredited)
• Calipers (NVLAP-Accredited)
• Height Gages
• Metal Scales
• Hardness

The tables below list our accredited capabilities. Our entire Scope of Accreditation can be found at the following link.

If you have questions about our dimensional and inspection capabilities, please contact the ORNL Metrology Laboratory for additional information.

The ORNL Metrology Laboratory (ORNLML) maintains an intrinsic Iodine-stabilized laser frequency and wavelength standard for certifying the frequency and/or wavelength of Helium-Neon (HeNe) lasers.  HeNe lasers are typically used for dimensional measurements and velocity/speed measurements using laser interferometers.  The frequency/wavelength of the laser is a contributor to the uncertainty of dimensional measurements using laser interferometry and must be considered when establishing traceability of laser interferometers.   The ORNL Metrology Laboratory can also provide calibration for other applications where knowledge of the frequency/wavelength of HeNe lasers is important. The ORNLML is accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) for laser wavelength over the range of 632.989841 to 632.992764 nm with an uncertainty of 0.09 parts in 10⁹,K=2.