1. ISO-4805 Laboratory Glassware—Thermo-Alcoholometers and Alcohol-Thermohydrometers,1982
2. ISO-4801 Glass Alcoholometers and Alcohol Hydrometers not Incorporating a Thermometer,1979
3. OIML R44 Alcoholometers and Alcohol Hydrometers and Thermometers for Use in Alcoholometry,1985
4. IS-7324 Indian Standard Specification for Brix Hydrometers,1983
5. ISO-2449 Milk and Liquid Milk Products–Density Hydrometers for Use in Products with a Surface Tension of Approximately 45 mN/m,1974