Calibration Services in Texas: ISO 17025 Accredited Lab in San Antonio

July 23, 2025
techmasters comprehensive texas — Techmaster ISO 17025 accredited calibration
Techmasters Comprehensive Texas at Techmaster Electronics — ANAB-accredited (AC-1736), NIST-traceable, ISO/IEC 17025, in-lab or on-site across the USA.
Texas · ISO/IEC 17025 accredited · ANAB AC-1736

Calibration Services in Texas

Techmaster Electronics provides ISO/IEC 17025 accredited calibration services in Texas from its San Antonio laboratory at 4614 Sinclair Rd. San Antonio holds the highest accredited ranges across our labs for torque (1,000 lbf·ft), high voltage (150 kV), pressure (15,000 psi) and high resistance (10 PΩ), plus AC high current to 1,500 A, on our ANAB scope, certificate AC-1736.
Texas lab4614 Sinclair Rd.
San Antonio, TX 78222
(210) 648-3133
cs.sa@techmaster.us
San Antonio lab page

What is accredited in Texas?

Every “Yes” or range below is on Techmaster’s ANAB ISO/IEC 17025 scope, certificate AC-1736. Exact ranges and measurement uncertainties are on our published accreditation scope.

DisciplineAccredited at San AntonioTypical instruments
TorqueTo 1,000 lbf·ft, the highest range across Techmaster labsTorque wrenches, torque screwdrivers, torque testers
High voltageDC/AC to 150 kV, the highest range across Techmaster labsHipot testers, HV probes and dividers
High resistance10 PΩ tera-ohmmeter, only at San AntonioMegohmmeters, insulation testers, electrometers
Pressure−12 psi to 15,000 psi, barometric to 39 psiaPressure gauges, transducers, calibrators
High currentAC high current to 1,500 A (San Antonio and Orlando); clamp-on to 1,025 A AC/DCClamp meters, current probes, shunts
DC and low-frequency electricalDC voltage to 1.1 kV, current to 1,000 A via shuntsMultimeters, DC power supplies, electronic loads
OscilloscopesTo 600 MHz, plus wave generatorBench and handheld oscilloscopes
Gauge blocks and ring gagesGauge blocks to 12 in, ring gages to 6.4 inGauge block sets, master rings

RF and microwave, environmental chambers, vibration and 1-D/2-D dimensional calibration are not on the San Antonio scope. They are accredited at our California and Florida labs, so ask us how to route those instruments.

Which Texas industries do we calibrate for?

  • Aerospace and defense: San Antonio and Dallas–Fort Worth aerospace maintenance and manufacturing: torque, pressure and electrical calibration on accredited certificates.
  • Oil, gas and petrochemical: Houston and Gulf Coast operations: high-range pressure to 15,000 psi, torque and electrical test equipment.
  • Electrical utilities and power: Hipot testers, insulation testers and high-current clamp meters, using the 150 kV, 10 PΩ and 1,500 A capabilities.
  • Semiconductors and manufacturing: Austin and Central Texas production floors: multimeters, power supplies, electronic loads and oscilloscopes.

How do Texas customers send equipment?

Customers anywhere in Texas can ship instruments to the San Antonio lab. Contact us to ask about pickup, drop-off at the lab and on-site calibration for equipment that should not leave your facility. For hours and directions, see the San Antonio lab page.

The same accredited calibration services are available nationwide from our other labs. See our accredited calibration services and all calibration lab locations.

How do you choose a calibration lab in Texas?

  • Scope, not just the certificate. An ISO/IEC 17025 certificate only covers the parameters and ranges on the lab’s scope. Confirm your instrument’s range is on it.
  • Accreditation body. Look the lab up in the ANAB or A2LA directory and read its current scope.
  • As-found data. Your quality system needs as-found and as-left results to assess work done with an instrument that drifted.
  • Measurement uncertainty. Accredited certificates report it for every point. Our guide to reading an ISO 17025 certificate shows what to look for.

Our comparison of US calibration providers covers the national labs if you are comparing options.

Texas calibration FAQ

Where is Techmaster's calibration lab in Texas?
Our Texas lab is at 4614 Sinclair Rd., San Antonio, TX 78222, phone (210) 648-3133. It is one of four Techmaster laboratories on our ANAB ISO/IEC 17025 accreditation, certificate AC-1736.
What can the San Antonio lab calibrate under accreditation?
San Antonio is accredited for torque to 1,000 lbf·ft, DC/AC high voltage to 150 kV, high resistance to 10 PΩ, pressure to 15,000 psi, AC high current to 1,500 A, DC and low-frequency electrical instruments, oscilloscopes to 600 MHz, gauge blocks to 12 in and ring gages to 6.4 in.
Does the San Antonio lab calibrate RF and microwave equipment?
No. RF and microwave calibration is not on the San Antonio scope. It is accredited at our Vista, Santa Clara and Orlando labs, and we can arrange for your instruments to go to one of them.
Do you serve customers outside San Antonio?
Yes. Customers across Texas, including Houston, Dallas–Fort Worth and Austin, ship instruments to San Antonio. Contact us to ask about pickup or on-site calibration.

Need calibration in Texas?

Send the instrument make, model and quantity. We reply with a quote from the lab that holds the accreditation you need.

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Khanh Nguyen

Khanh Nguyen

Khanh Nguyen is the Marketing Manager at Techmaster Electronics, a B2B marketing leader covering the test, measurement, and ISO/IEC 17025 accredited calibration industry across the US and Vietnam markets.

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