ISO/IEC 17025:2017 calibration
Valid through April 30, 2027
Why accurate pressure measurement matters
If your pressure gauge or transducer drifts out of tolerance, your process control loop, your safety valve, your cleanroom pressure cascade, or your fume hood face velocity verification is at risk. Pressure measurement is also the underlying signal for many compliance-driven monitoring systems.
The cost of a calibration program isn't measured against itself — it's measured against the cost of a recall, a hold, or a deficiency notice.
Allometrics has been performing ISO/IEC 17025 pressure and vacuum calibration since the standard existed. Our certificates will pass your audits and FDA, USP, and Joint Commission review.
Why Allometrics for pressure and vacuum calibration
A2LA-accredited under ISO/IEC 17025. Cert 2039.01. Continuous accreditation through every revision of the standard.
Onsite, in your facility. Our field metrologists arrive with deadweight testers, ADT pressure calibrators, and Fluke reference standards covering barometric through high-pressure. We calibrate gauges, transducers, transmitters, and magnehelics in place — no need to remove instruments from your process.
Replace 3–5 vendors with one accredited partner. Calibration, cleanroom certification, biosafety, and viables — all delivered by the same team under one accreditation chain. Allometrics' integrated compliance service team ensures compliance and helps you pass your audits.
50 years of regulated-environment experience. Founded 1976. The team has lived every USP revision, every FDA cGMP guidance update, every Joint Commission standards change.
Audit-ready certificates that pass FDA, USP, and Joint Commission review
Designed to pass FDA, USP, and Joint Commission audits on first review. Every Allometrics pressure and vacuum calibration produces a signed, A2LA-traceable certificate built to survive inspection. Each certificate includes:
- Equipment ID, serial number, manufacturer, model, customer asset tag
- Date of calibration, technician, next-due date
- Reference standards used, with NIST traceability chain
- Environmental conditions at the time of calibration
- As-found readings and as-left readings at every test point
- Measurement uncertainty per ILAC P14 / GUM
- Pass/fail determination against your specified tolerance
- A2LA accreditation symbol and Cert 2039.01 reference
Certificate format is designed for FDA inspections, USP <797>/<800>/<825> reviews by state pharmacy boards, Joint Commission MM/EC chapter reviews, ISO 9001 audits, and the metrology requirements of every customer QMS we've worked under.
If your Quality team needs IQ/OQ/PQ documentation for equipment qualification, we deliver it. If you have custom needs for your equipment contact us today.
Equipment we calibrate
- Pressure gauges and test gauges — analog and digital, all common ranges
- Pressure transducers and transmitters — 4-20 mA, voltage, digital protocols
- Magnehelic and Photohelic gauges — cleanroom and HVAC differential pressure
- Manometers — water column, mercury, digital
- Barometric instruments — atmospheric pressure references
- Vacuum gauges and equipment — laboratory and process vacuum
- Pressure calibrators and dead-weight testers — secondary references
- Pressure relief valves (PRVs) — set-point verification
Servicing all major manufacturers — Fluke, Druck, Ashcroft, Wika, Dwyer, Rosemount, Setra, Heise, Honeywell — and many others.
Service modes
Onsite field service — best for active facilities. Our field metrologists come to your facility with deadweight testers, ADT/Fluke pressure calibrators, and reference standards. We calibrate gauges and transducers in process or on the bench.
Cal lab shipping, dropoff, and pickup — best for ultra-precision work. For high-precision pressure references and equipment requiring extended stabilization, bring or ship to our Webster, TX lab.
Recurring program enrollment — best for multi-site customers. Most pressure instruments need annual recertification. Allometrics manages pickup/return logistics for multi-site pressure programs.
Decision shortcuts — start here
Calibration framing for specific environments
If you need pressure and vacuum calibration for industrial QC labs, refinery process measurement, or trade-certified equipment — see our industrial calibration page for trade-cert considerations, on-demand fail-and-respond service, and refinery hot-work permit logistics.
If you need pressure and vacuum calibration specifically inside a cGMP-regulated environment — compounding pharmacy, pharmaceutical manufacturing, 503B outsourcing facility, ATMP / cell & gene therapy site — see our cGMP / pharma calibration page for the documentation, USP <1058> equipment qualification level (EQL-1 through EQL-3), IQ/OQ/PQ workflow, and audit-survivable certificate format that pharmaceutical work requires.
A2LA Cert 2039.01 — pressure and vacuum scope
The full scope, including all other disciplines and supporting comments, is published at a2la.org/accreditation/2039-01.
Download the full A2LA Cert 2039.01 Scope of AccreditationView the full A2LA mass scope (verbatim from the published cert)
| Parameter/Equipment | Range | CMC2, 6, 7 (±) | Comments |
|---|---|---|---|
| Pressure – Measuring Equipment, Barometric | (600 to 1100) hPa | 0.098 hPa | Vaisala PTB 330 |
| Pressure – Measuring Equipment, Low (water) | (-0.5 to 0.5) inH2O (-30 to 30) inH2O | 0.0012 inH2O 0.035 inH2O | ADT760 w/ DP5, ADT760 w/ DP30 |
| Pressure – Measuring Equipment, Vacuum (Hg) | (-30 to 0) inHg | 0.013 % of rdg + 0.0009 inHg | Fluke P3025 |
| Pressure – Measuring Equipment, Medium | (5 to 500) psig | 0.013 % of rdg + 0.012 psi | Fluke P3025 |
| Pressure – Measuring Equipment, High | (200 to 10 000) psig | 0.015 % of rdg + 0.6R | Fluke P3124 |
Compliance frameworks this work supports
Related
Other calibration disciplines
- Mass & Weighing
- Temperature
- Volume & Liquid Handling
- Pressure & Vacuum
- Mechanical / Hardness / Plastics
- Analytical / pH / Spectro
- Flow / Velocity / RPM
- Electrical / Electronic
- Dimensional, Humidity, Force & Torque, Time & Frequency, Optical, Vibration
- Temperature & Humidity Mapping
- All disciplines (calibration hub)