Your Trusted Photometer Calibration Provider
Micro Precision is an ISO/IEC 17025:2017 accredited calibration provider with NIST-traceable reference standards and a network of more than 50 laboratories operating worldwide. Our photometer calibration services cover the scientific and industrial instruments used to measure light intensity, UV output, and illuminance in nondestructive testing, cleanroom validation, and optical quality control programs, part of our complete Optical Equipment Calibration Services.
Micro Precision provides ISO/IEC 17025:2017 accredited, NIST-traceable photometer calibration for radiometer/photometer combination meters, aerosol photometers, and UV photometers used across aerospace, defense, medical, automotive, and manufacturing quality programs, giving quality managers a single accredited source for light-intensity measurement equipment.
This page covers scientific and industrial photometers used for measurement-grade light intensity, UV inspection, and aerosol filter testing. It does not cover consumer or workplace ambient light meters used for general lux readings, which are addressed on a separate page.
Micro Precision calibrates photometers from a variety of manufacturers, including Konica Minolta, Photo Research, Gigahertz-Optik, Spectroline, Tektronix, Labino, and TEC Services, giving lab technicians and quality managers one accredited source regardless of instrument brand.
Why Photometer Calibration Matters
An uncalibrated photometer risks inaccurate light-intensity readings that can compromise nondestructive testing inspection results, cleanroom filter integrity verification, and UV curing or disinfection process validation. Undetected drift in a radiometer/photometer combination meter can allow an inspector to under-illuminate a fluorescent penetrant inspection or misjudge an aerosol filter leak test result, creating downstream quality and compliance risk.
ANSI/NCSL Z540.3 requires documented, objective evidence of calibration for measuring and test equipment used in regulated quality programs, and photometer calibration requirements under this standard apply to the light-intensity instruments used in NDT inspection, cleanroom validation, and UV process verification. Quality managers overseeing aerospace, defense, medical, and manufacturing inspection programs need an unbroken calibration record and NIST traceability to satisfy ISO/IEC 17025:2017 audit requirements.
Procurement officers responsible for maintaining photometer inventories depend on a reliable, accredited calibration source to avoid inspection downtime, while compliance officers rely on documented photometer calibration records to support regulatory reporting. Micro Precision calibrates photometers under ISO/IEC 17025:2017 accreditation with NIST-traceable standards, giving every persona a defensible calibration record.
Ensure Accurate Photometer Calibration
Micro Precision calibrates a photometer by testing its light-intensity readings against NIST-traceable reference standards, verifying performance across the instrument’s UV or visible light measurement range, then adjusting the instrument to correct any deviation found. Each unit is inspected, tested, adjusted, and returned with a certificate of calibration.
The process for each photometer includes:
- Receipt and inspection: Instrument condition, sensor or detector configuration, and display function are verified on arrival.
- Performance testing: The photometer is tested against NIST-traceable reference light-intensity standards to establish as-found measurement status.
- Adjustment: Measurement errors are corrected using calibration methods appropriate to the instrument’s type and range.
- Post-adjustment verification: Measurements confirm the instrument performs within required parameters after calibration.
- Documentation: A certificate of calibration is issued, documenting the calibration date, interval, standards used, and as-found and as-left data.
- Return: The calibrated photometer is packaged and returned with its certificate of calibration.
Standard and faster turnaround options are available for time-critical inspection programs. Contact our team to discuss current scheduling.
Our Calibration Options
Micro Precision offers both in-lab and on-site photometer calibration to match your equipment configuration, inspection environment, and program timeline. Choosing between the two options depends primarily on whether the photometer is a portable handheld instrument or a unit integrated into a fixed inspection or process line.
In-Lab Calibration
Ship your photometer, radiometer/photometer combination meter, or aerosol photometer to one of Micro Precision’s ISO/IEC 17025:2017 accredited laboratories for full-capability calibration under controlled conditions, with NIST-traceable results issued on a certificate of calibration.
On-Site Calibration
For photometers integrated into production lines, cleanroom systems, or facilities where equipment cannot be removed from service, Micro Precision sends qualified calibration technicians directly to your facility as part of our on-site calibration service, serving aerospace, defense, medical, automotive, and manufacturing programs nationwide.
Faster Turnaround
Standard and faster turnaround options are available for both in-lab and on-site service. Contact our team to discuss current scheduling and lead times
Photometer Types We Calibrate
Micro Precision calibrates a variety of scientific and industrial photometer types used in non-destructive testing, cleanroom validation, and optical quality control programs.
- UV radiometer/photometer combination meters used in fluorescent penetrant and magnetic particle NDT inspection.
- Digital photometer/radiometer combination meters used for UV and visible light intensity measurement.
- Radiometer/photometer combination meters.
- Aerosol photometers used for HEPA filter integrity and cleanroom leak testing.
- Illuminance photometers used for industrial and laboratory light output verification
- Spot and luminance photometers used to measure the light intensity of light sources, displays, and optical systems
- UV photometers used in UV curing, UV disinfection, and phototherapy intensity verification
- Photometric detectors and sensors integrated into spectroradiometric and optical test systems
If your photometer model is not listed here, contact our team to confirm support.
Calibration Service Levels Offered
Micro Precision offers service levels to match your quality program requirements, from NIST-traceable certificates to fully accredited calibration documentation for photometers.
| Type of Service | Traceable | Traceable with Data | Accredited (ISO:IEC 17025:2017, Z540.3) |
|---|---|---|---|
| Calibrated to manufacturers specifications traceable to SI Units | |||
| ISO 9000 Compliant | |||
| Calibration certificates, data, maintained on secure web based tool (CDM) | |||
| Detailed calibration certificates and calibration stickers | |||
| Instrument adjustment (if found out of tolerance) | |||
| ANSI/NCSL Z540-1 compliant | |||
| Calibration Data | |||
| Logo from Accreditation body, Expanded Measurement Uncertainty | |||
| ANSI/NCSL Z540.3 compliant |
Photometer Calibration Services
Micro Precision provides ISO/IEC 17025:2017 accredited, NIST-traceable photometer calibration for radiometer/photometer combination meters from Spectroline, Tektronix, and Labino, aerosol photometers from TEC Services, and a variety of other scientific and industrial light-intensity instruments. With more than 50 laboratories serving aerospace, defense, medical, automotive, and manufacturing programs, Micro Precision delivers the documented calibration record your photometer inventory requires, backed by ANSI/NCSL Z540.3 compliant processes. Submit a request today to discuss your photometer inventory, service level requirements, and calibration options.
Please complete our quick Photometer calibration & repair service request form, and a Micro Precision representative will reach out to you same-day during office hours, or within one business day after office hours. (Mon – Friday 8AM – 4PM PST)
Photometer Services
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Frequently Asked Questions
Micro Precision calibrates a photometer by testing its light-intensity readings against NIST-traceable reference standards across the instrument’s UV or visible light measurement range. Technicians adjust the instrument as needed and document as-found and as-left readings on a certificate of calibration.
Photometer calibration frequency depends on usage. Instruments used occasionally in a lab setting are commonly calibrated annually, while photometers used in daily NDT inspection or continuous cleanroom monitoring often require more frequent calibration. ANSI/NCSL Z540.3 requires a documented, defined interval, and Micro Precision records the interval applied on every certificate issued.
Photometer calibration uses NIST-traceable reference light-intensity standards appropriate to the instrument’s measurement type, whether UV, visible light, or aerosol concentration. Micro Precision verifies each photometer against these reference standards under ISO/IEC 17025:2017 accredited conditions, then adjusts the instrument before issuing a certificate of calibration.
Photometer calibration cost depends on factors including the instrument type, whether a radiometer/photometer combination meter or aerosol photometer, the service level selected, and whether calibration is performed in-lab or on-site. Micro Precision does not publish flat-rate pricing because scope varies by make and model. Contact our team for a quote specific to your inventory.
ISO/IEC 17025:2017 accredited photometer calibration is available through Micro Precision for radiometer/photometer combination meters, aerosol photometers, and other scientific and industrial light-intensity instruments. This accreditation level is required or expected under most aerospace, defense, medical, and manufacturing quality programs that demand documented, defensible calibration records.
A photometer measures visible light intensity as perceived by the human eye, while a radiometer measures radiant energy across a broader range that includes UV and infrared wavelengths outside human visual perception. Many instruments Micro Precision calibrates, including the Tektronix J16 and J17, combine both functions in a single radiometer/photometer unit.