Product Description
When proof readings need to stand up to regulators, auditors or customers, documentation matters as much as accuracy. These IRS specification proof hydrometers come with certification, giving distilleries and testing labs a documented reference instrument for verifying the alcohol strength of spirits and supporting their compliance records.
This listing is for catalog number 6613-M-C: Alcohol Hydrometer, Proof Scale, IRS Specification, Size M, with Certification. Each glass hydrometer reads on the proof scale and follows the IRS size designations, from Size B through Size R, with each size covering its own narrow segment of the proof range. Select the size whose span matches your product, or assemble a set to cover the full range from low-proof wash through high-proof distillate. Every unit ships with its certification. LIGHT LABS ships genuine Heathrow Scientific products with knowledgeable support from our Englewood, Colorado team.
Key Features
- Supplied with certification – Documentation supports audits and compliance records.
- IRS specification – Made to IRS proof hydrometer requirements.
- Proof scale – Reads alcohol strength directly in proof.
- Full size series – Sizes B through R cover successive proof segments.
- Glass construction – Easy to clean and chemically resistant.
Specifications
| Catalog Number | 6613-M-C |
| Brand | Heathrow Scientific |
| Description | Alcohol Hydrometer, Proof Scale, IRS Specification, Size M, with Certification |
| Sold As | Each |
| Scale | Proof |
| Standard | IRS specifications |
| Sizes | B, F, G, H, I, K, L, M, N, P, Q, R |
| Documentation | Certification included |
| Material | Glass |
Available Options
- 6613-B-C – Alcohol Hydrometer, Proof Scale, IRS Specification, Size B, with Certification
- 6613-F-C – Alcohol Hydrometer, Proof Scale, IRS Specification, Size F, with Certification
- 6613-G-C – Alcohol Hydrometer, Proof Scale, IRS Specification, Size G, with Certification
- 6613-H-C – Alcohol Hydrometer, Proof Scale, IRS Specification, Size H, with Certification
- 6613-I-C – Alcohol Hydrometer, Proof Scale, IRS Specification, Size I, with Certification
- 6613-K-C – Alcohol Hydrometer, Proof Scale, IRS Specification, Size K, with Certification
- 6613-L-C – Alcohol Hydrometer, Proof Scale, IRS Specification, Size L, with Certification
- 6613-N-C – Alcohol Hydrometer, Proof Scale, IRS Specification, Size N, with Certification
- 6613-P-C – Alcohol Hydrometer, Proof Scale, IRS Specification, Size P, with Certification
- 6613-Q-C – Alcohol Hydrometer, Proof Scale, IRS Specification, Size Q, with Certification
- 6613-R-C – Alcohol Hydrometer, Proof Scale, IRS Specification, Size R, with Certification
Applications
- Distillery proof gauging
- TTB compliance testing
- Reference checks for working hydrometers
- Spirits QC and blending
