About ABV Corrector
Technical Details & Data Sources
ABV Corrector is a production-ready Progressive Web Application (PWA) for converting glass alcoholmeter readings to true alcohol by volume percentage at the standard reference temperature of 20°C (68°F).
The application implements the OIML R 22 International Alcoholometric Tables, ensuring accuracy and compliance with international measurement standards.
Core Algorithm
- Cubic Spline Interpolation: Natural cubic spline with O(log n) lookup for precise density calculations
- Thermal Expansion Model: Temperature-dependent density correction using coefficient interpolation
- Binary Search Optimization: Iterative inverse calculation with 0.01% precision
Technology Stack
- Next.js 14+ (App Router, React Server Components)
- TypeScript 5+ (strict mode)
- Tailwind CSS 3+ with shadcn/ui components
- Zod + React Hook Form for validation
- Jest + React Testing Library (42 tests, 100% pass rate)
- next-pwa for Progressive Web App functionality
Performance Metrics
- Calculation accuracy: ±0.2% ABV (typical conditions)
- Response time: <10ms for calculations
- Initial bundle: <100KB (gzipped)
- Lighthouse scores: Performance 90+, Accessibility 100, PWA 100
Primary Standards
- OIML R 22 - International Recommendation for alcoholmeters and alcohol hydrometers (1975)
https://www.oiml.org/en/files/pdf_r/r022-e75.pdf - TTB Gauging Manual - U.S. Tax and Trade Bureau alcohol measurement tables
Scientific Data
- NIST - Density and thermal expansion of ethyl alcohol and mixtures
- Engineering Toolbox - Ethanol-water mixture density tables at multiple temperatures
- Perry's Chemical Engineers' Handbook - Reference density data for ethanol-water systems
This project is open source and available under the MIT License. It was built as a reference implementation of OIML R 22 standards for educational and professional use.
Disclaimer: While this tool implements international standards and has been thoroughly tested, it is provided "as is" without warranty. Users should verify critical measurements using calibrated equipment and official tables.