Thermometers, Hydrometers, Baumé Hydrometers, Alcoholmeters

Introduction to Thermometers, Hydrometers, Baumé Hydrometers, Alcoholmeters

Thermometers, hydrometers, Baume hydrometers, and alcoholmeters are specialized physical measuring instruments used to determine ambient temperature and humidity, as well as to measure the specific gravity, alcohol content, and concentration of liquids in laboratories. This category includes diverse types such as alcohol thermometers, dry-and-wet bulb hygrometers, refrigerator thermometers with alarms, digital thermo-hygrometers, along with hydrometers like alcoholmeters for measuring ethanol volume percentage, Baume hydrometers for vinegar or acetic acid, and hydrometers for Brix, sugar, or hydrogen peroxide.

When selecting instruments, users should consider the measuring purpose, measuring range, scale divisions, calibration temperature, and technical standards such as ISO 649, NF T60101, or ASTM. Some instruments come with integrated thermometers or include a Certificate of Conformity for quality control. Currently, Hoa Viet supplies a complete line of genuine thermometers, hydrometers, Baume hydrometers, and alcoholmeters from Alla (France).

What are the fundamental differences between an alcoholometer, a Baumé hydrometer, and a hydrometer?

Hydrometers are used to measure liquid density in g/ml or kg/m³, alcoholmeters measure ethanol concentration in percentage by volume (% vol), and Baumé hydrometers determine solution concentration on the Baumé scale (°Bé), such as in testing vinegar and acetic acid.

What does the reference temperature (Tp) marked on hydrometers and alcoholmeters mean?

This is the liquid temperature at which the scale was accurately calibrated by the manufacturer, typically 15°C, 20°C, or 68°F according to ASTM standards. If the solution is measured at a different temperature, the reading requires temperature compensation, or users should choose a type with an integrated thermometer.

Which brands of temperature and density measuring instruments does Hoa Viet supply?

Hoa Viet distributes thermometers, hydrometers, alcoholmeters, and Baumé hydrometers from Alla (France), including models manufactured in accordance with ISO 649, NF T60101, and ASTM standards.

What should be noted when using and storing glass hydrometers?

Before and after measurement, clean and dry the surface to prevent residue deposits from altering the float weight. Glass instruments should be stored carefully in dedicated protective tubes and placed vertically or lying on soft padding to prevent breakage from impacts.