IRS Alcohol Hydrometers with NIST Certificate
Our certified alcohol hydrometers are three point certified to IRS standards for proof, tolerances, and NIST traceability. These hydrometers are commonly used in distilleries that require certification.
Each hydrometer comes with a laminated NIST-traceable certificate of calibration and a protective PVC case.
The certification is ordered with the hydrometer and requires 10-15 business days for delivery.
*NIST certificate requires the name and address of the end user. Please provide the name and address of the end user in the special instructions to seller box at checkout.
Specifications Chart
| Item No. | Proof Range | Subdivision | Tolerance | I.R. Size |
| 6613-B-C | 80 to 120% | 0.5% | ±0.5% | B |
| 6613-F-C | 0 to 20% | 0.2% | ±0.3% | F |
| 6613-G-C | 20 to 40% | 0.2% | ±0.4% | G |
| 6613-H-C | 40 to 60% | 0.2% | ±0.4% | H |
| 6613-I-C | 60 to 80% | 0.2% | ±0.3% | I |
| 6613-K-C | 75 to 95% | 0.2% | ±0.3% | K |
| 6613-L-C | 90 to 110% | 0.2% | ±0.3% | L |
| 6613-M-C | 105 to 125% | 0.2% | ±0.3% | M |
| 6613-N-C | 125 to 145% | 0.2% | ±0.3% | N |
| 6613-P-C | 145 to 165% | 0.2% | ±0.3% | P |
| 6613-Q-C | 165 to 185% | 0.2% | ±0.2% | Q |
| 6613-R-C | 185 to 206% | 0.2% | ±0.2% | R |
