Note on particle counters: This page is for general information only. Techmaster does not calibrate particle counters of any make or model, and particle counters are not on our ANAB ISO/IEC 17025 scope (certificate AC-1736). Techmaster only performs calibration services that are covered by our scope. For particle counter calibration, please contact your instrument’s manufacturer or its authorized service provider, and follow any service requirements they specify. If you prefer, send us your request and, with your permission, we will forward it to the manufacturer. See what is on our accredited scope.
Holly Springs, NC Calibration Lab
Holly Springs, NC 27540

Where is accredited calibration performed?
Techmaster’s ANAB ISO/IEC 17025 scope (certificate AC-1736) covers four laboratories. Each instrument goes to the lab whose scope covers it:
- Vista, CA (San Diego): RF and microwave, high voltage to 100 kV, pipettes, gauss meters
- Santa Clara, CA (Silicon Valley): vibration, dimensional, force, environmental chambers, RF
- Orlando, FL: RF and microwave, environmental chambers, high current
- San Antonio, TX: torque to 1,000 lbf·ft, 150 kV, 15,000 psi, 10 PΩ
Particle counters are not on the ANAB scope at any Techmaster lab, and Techmaster does not calibrate them. Patient simulators and optical radiometers are not on the ANAB scope at any Techmaster lab either; they receive NIST-traceable certificates, not ISO/IEC 17025 accredited ones.
How do I send instruments to this location?
Contact us with your instrument list. We confirm which work is handled in Holly Springs and which goes to an accredited lab, and arrange pickup, drop-off or shipping. Send a model list or photos of asset tags with your quote request so the work is scheduled before the equipment arrives.
Frequently asked questions
Where is Techmaster's North Carolina lab?
Is the Holly Springs lab ISO/IEC 17025 accredited?
What are the Holly Springs lab's hours?
How do North Carolina customers get accredited calibration?
Other Techmaster locations
See all calibration lab locations and our accredited calibration services.
