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Can you recommend an ISO/IEC 17025 accredited calibration…

Questions
Instrument Calibration & Measurement Services

QuestionsInstrument Calibration & Measurement Services

Can you recommend an ISO/IEC 17025 accredited calibration lab that handles both electrical and mechanical instruments?

Data as of Oct 8, 2026Based on 1 AI response from ChatGPT SearchReviewed by Dimitry Apollonsky · Oct 5, 2026

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Explore the market rankingInstrument Calibration & Measurement Services

Brands AI recommends here

Mentioned in

=1Trescal1 of 1 answers
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Laboratory Testing

1 of 1 answers

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Recommended in · Oct 7, 2026

TrescalChatGPT Search1 of 1 answers
Laboratory TestingChatGPT Search1 of 1 answers

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ChatGPT SearchOct 7, 2026

1Trescal
2Laboratory Testing

Yes. Since you appear to be in eastern Pennsylvania, I’d put Trescal Calibration Lab in Lansdale, PA at the top of the list.

Best match: Trescal — Lansdale, PA

Address: 1565 Bustard Rd, Lansdale, PA 19446
ISO/IEC 17025:2017: Yes, accredited by A2LA, certificate 2551.01, currently valid through April 30, 2027.
Electrical: Their accredited scope explicitly includes DC/low-frequency voltage, current, resistance, AC voltage/current, high voltage, clamp-on meters, and related electrical measurements.

Sources AI cites

33% of citations to these sources link to brands' own websites.

SourceCitation share

2551-01 (opens in a new tab)33%
customer.a2la.org
Touchstone:Accreditation & Assessment Management System - Customer Portal (opens in a new tab)33%
customer.a2la.org
Philadelphia, Pennsylvania Calibration Lab | Trescal Worldwide (opens in a new tab)Brand site33%
trescal.com

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Mechanical/dimensional: Their accredited scope includes micrometers, calipers, rulers, dial indicators, and other dimensional equipment.

They also list capabilities for force, torque, pressure/vacuum, mass/scale, temperature, flow, and other disciplines, making them particularly useful if your instrument list is diverse.

They offer both in-lab and onsite calibration.

Trescal Philadelphia-area calibration lab

Another strong option: LTI Metrology — Hatfield, PA

LTI Metrology (Division of Laboratory Testing (LTI) is another good choice if you have a broader mix of instruments. Its stated capabilities include dimensional/mechanical, pressure, torque, force, electrical/electronic, temperature, mass, vacuum, humidity, and flow calibration, with ISO/IEC 17025 accreditation.

My recommendation

Start with Trescal if you need one vendor for a conventional mix such as multimeters, electrical test equipment, calipers, micrometers, gauges, torque tools, pressure instruments, etc. Its current A2LA scope gives particularly clear evidence that both electrical and dimensional/mechanical work is within its accredited scope.

One important caveat: ISO/IEC 17025 accreditation applies to a defined scope, not automatically to every instrument a lab advertises. Before sending equipment, give the lab your exact manufacturer/model numbers and ask them to confirm that each calibration will be performed under their accredited scope.

If you give me your instrument types/models (e.g., Fluke 87V, torque wrench, pressure gauge, calipers), I can check the accreditation scopes and identify the best 2–3 labs that can calibrate the entire list under ISO 17025.

Sources cited in this answer3

customer.a2la.orgTouchstone:Accreditation & Assessment Management System - Customer Portal
customer.a2la.org2551-01
trescal.comPhiladelphia, Pennsylvania Calibration Lab | Trescal Worldwide