ISO/IEC 17025:2017 calibration
Valid through April 30, 2027
Why accurate flow and velocity measurement matters
If your anemometer drifts, your fume hood face velocity verification is unreliable — and that's a Joint Commission and OSHA finding. If your mass flow controller loses spec, your process gas mixing is off. Flow measurement is foundational to ventilation, process control, and combustion safety.
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 flow, velocity, and RPM calibration since the standard existed. Our certificates will pass your audits and FDA, USP, and Joint Commission review.
Why Allometrics for flow, velocity, and RPM 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 calibrated reference anemometers, air-velocity rigs, and Monarch/Omega tachometer references. We verify flow and velocity equipment in fume hoods, in cleanrooms, on production lines.
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 flow, velocity, and RPM 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
- Anemometers (hot-wire, vane, rotating) — air velocity 0.1 to 30 m/s
- Flow meters — gas and liquid, rotameters, magnetic, ultrasonic, turbine
- Mass flow controllers (MFCs) — semiconductor, lab gas mixing
- Tachometers — contact, non-contact (photo), strobe
- Air-flow indicators and capture hoods — fume hood / BSC verification gear
- RPM sensors and rotational-speed equipment — motor and shaft speed verification
- Velocity meters — process and laboratory
Servicing all major manufacturers — TSI, Alnor, Kanomax, Omega, Monarch, Brooks, MKS, Sierra, Endress+Hauser — and many others.
Service modes
Onsite field service — best for active facilities. Our field metrologists come to your facility with reference anemometers, calibrated airflow rigs, and tachometer standards. We verify in fume hoods, cleanrooms, ventilation systems, and on production lines.
Cal lab shipping, dropoff, and pickup — best for ultra-precision work. For mass flow controllers requiring extended environmental stabilization, bring or ship to our Webster, TX lab.
Recurring program enrollment — best for multi-site customers. Most flow and velocity instruments need annual recertification — fume hood face velocity verification is typically a quarterly cadence. Allometrics manages multi-site flow programs.
Decision shortcuts — start here
Calibration framing for specific environments
If you need flow, velocity, and RPM 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 flow, velocity, and RPM 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 — flow, velocity, and RPM 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 (±) | Comments |
|---|---|---|---|
| Rotational Speed – Measure3 | (30 to 100 000) RPM | 120 parts in 106 + 0.6R | Omega HHT12, Monarch PT200 |
| Rotational Speed – Generate | (30 to 99) RPM (100 to 300 000) RPM | 2 parts in 106 + 1.0R 2 parts in 106 + 0.6R | Fluke 5522A w/ strobe |
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)