Liquid-in-Glass Thermometer Calibration Services
A century-old design that still anchors labs — when its column and scale are verified.
ACS Calibration delivers NIST-traceable, audit-ready liquid-in-glass thermometer calibration, available at the ACS central lab or directly on-site at facilities across the Southeast. Temperature from -196 °C to 420 °C, infrared to 500 °C, and humidity from 30 to 75 %RH are on our accredited scope, so ISO/IEC 17025 accredited certificates are available on request.
Temperature & Humidity Instruments We Calibrate
From cryogenic checks to furnace controllers — if it reads degrees or percent RH, we can almost certainly handle it.
Frequently serviced brands: Traceable (Control Company), Gemini Tinytag, T&D, MadgeTech, Fluke, ThermoWorks, LogTag, and ThermoPro — plus dozens more.
Old Technology, Current Requirements
Liquid-in-glass thermometers survive in modern labs for good reason: no batteries, no drift electronics, and many ASTM and compendial methods still specify them by name. But glass has its own failure modes — column separation from shipping shock, bulb strain that shifts the ice point, scale errors that were born at the factory and never caught.
We calibrate liquid-in-glass thermometers by comparison in stirred baths under our accredited capability, at the immersion depth the design calls for (partial or total), with as-found data documented per point. Mercury and spirit-filled units are both covered.
Labs transitioning away from mercury can verify replacements against the same standards: digital thermometers and logging thermometers calibrate alongside, and the full thermometer family shares one cycle.
What You Get With Every Calibration
- NIST-traceable calibration certificate with real measurement data — not just a pass/fail sticker
- As-found and as-left readings, so drift is documented
- ISO/IEC 17025 accredited certificate with reported uncertainty — on request
- Calibration label with due date, plus a reminder before your next calibration is due
Why Companies Choose ACS for Liquid-in-Glass Thermometer Calibration
NIST-Traceable, Accredited on Request
Every calibration is NIST-traceable with real measurement data. Temperature (-196 to 420 °C), infrared (35–500 °C), and humidity (30–75 %RH) are on our ISO/IEC 17025 accredited scope — accredited certificates available whenever your quality system requires them.
4–6 Business Day Typical Turnaround
Keep production moving. Most instruments are typically completed in 4 to 6 business days from arrival, with rush options available when a line is down.
Flexible Logistics
Mail your instruments in, or schedule onsite calibration and we come to your floor — serving Alabama, Florida, Georgia, Mississippi, Tennessee, South Carolina, and beyond.