These IRS alcohol hydrometers use the Proof scale and comply with IRS specifications.
- Calibration for use at 15.5 °C/60 °F
- NIST-Traceable certificate
Verify the alcohol content of your ethyl alcohol-based spirits with our proof scale hydrometer. Tolerances match those laid out by IRS specifications.
: Includes hydrometer, NIST-traceable certificate, and PVC case.
- Description:Internal revenue size M
- Range:105...125 proof, ±0.3% tol.
- Length:305 mm (12")
- Subdivisions:0.2

