Hydrometers
Types of hydrometers

Rangefinder hydrometer

Rangefinder hydrometer

General purpose hydrometer

General purpose hydrometer

Rangefinder hydrometer

Subdivisions 0.005 g/cm3, reference temperature 20 °C. Without thermometer, approx. 300 mm long.

Rangefinder hydrometer

Subdivisions 0.01 g/cm3, reference temperature 20 °C. Without thermometer, approx. 350 mm long.

General purpose hydrometer

Subdivisions 0.001 g/cm3, reference temperature 20 °C. Without thermometer, approx. 160 mm long.

General purpose hydrometer

Subdivisions 0.001 g/cm3, reference temperature 20 °C. Without thermometer, approx. 300 mm long.

General purpose hydrometer

Without thermometer
Subdivisions 0.002 g/cm3, reference temperature 20 °C. Approx. 280 mm long.

With thermometer
Thermometer range from 0 to 30 °C (subdivisions 1 °C). Approx. 330 mm
Hydrometers, Baumé pattern

For aqueous solutions and liquids with similar surface tensions.

The advantage of this pattern is that the distances between graduation marks remain constant throughout the entire range. Conversion from °Bé to density in g/cm3 can be calculated according to the following equation:

ρ = 144.3 : (144.3 – °Bérat.)

°Bérat. = 144.3 (1 – 1/ρ )

Reference temperature 20 °C.

General purpose alcoholometers

General purpose alcoholometers

Sugar hydrometers

Sugar hydrometers

General purpose alcoholometers

Richter + Tralles pattern

Without thermometer:
Subdivisions: 1 weight % / 1 vol.%, reference temperature 20 °C, range 0-100% (weight/vol.). approx. 250 mm long

With thermometer:
thermometer range: 0-30/ 40 °C (subdivisions 1 °C), Petroleum filled, blue colored, approx. 325 mm long, 

General purpose alcoholometers

Gay-Lussac + Cartier pattern

Without thermometer:
Subdivisions: 1 vol.% / 0.5 °Cartier, reference temperature 15 °C, range 0-100 vol.% / 10-45 °Cartier.approx. 250 mm long

With thermometer:
thermometer range: 0-30/ 40 °C (subdivisions 1 °C), Petroleum filled, blue colored, approx. 325 mm long, 

Sugar hydrometers

Saccharimeters, Brix pattern (Sugar hydrometers)
(1 °Brix = 1% sugar solution) Subdivisions: 1 °Brix. Reference temperature 20 °C.
Without thermometer: approx. 210 mm long.

 

Sugar hydrometers

Saccharimeters, Brix pattern (Sugar hydrometers)
(1 °Brix = 1% sugar solution)
Subdivisions: 0.1 °Brix. Reference temperature 20 °C.
With thermometer: approx. 330 mm long. Thermometer range: 0-40/ 50 °C (subdivisions 1 °C). Petroleum filled, blue colored.