The IRS alcohol hydrometer is three-point certified to IRS standards for Proof and Tolerances and Traceable to NIST. It features 80 to 120% Proof range, I.R. size B, and is commonly used in distilleries that require certification. It also has a 0.5% subdivision and approximate length of 9.05512" (230 mm).
The IRS alcohol hydrometer is three-point certified to IRS standards for Proof and Tolerances and Traceable to NIST. It features 80 to 120% Proof range, I.R. size B, and is commonly used in distilleries that require certification. It also has a 0.5% subdivision and approximate length of 9.05512" (230 mm).
| Proof Range | 80 to 120% |
| I.R. Size | B |
| Subdivision | 0.5% |
| Tolerance | ±0.5% |
| Approx. Length | 9.05512" (230 mm) |