Solid mode:
According to the standards of ASTMD297-93, D792-00, D618, D891, GB/T1033, JISK6530, ISO2781, and by adopting the buoyancy method of Archimedean principle, the machine can accurately and directly show the measuring result. 
Liquid mode:
According to the standards of GB/T5526, 13531, 15223, 5009, JIS, ISO and by adopting the buoyancy method of Archimedean principle, water displacement method, it can accurately and directly show the measuring result.  
Functions:
1. It has the function of showing mixture proportion, it can show % value directly. It is suitable for researching and developing new materials.
2. It has the function of HI limit and LO limit, can judge whether the density, concentration of the sample is appropriate or not, and it is equipped with buzzer.
3. It can easily be connected to the PC and the printer by RS-232.
4. It has the function of density and volume change (can set the time of 1, 10, 30, 60sec)
5. Under liquid testing mode, the error caused by air buoyancy can be compensated.
6. Can directly show the solution concentration by the specific gravity of testing solution.
Specifications:
Model: GP-120S 
Measuring range: 0.001-120g 
Density precision of solid mode: 0.0001g/cm3 
Precision of liquid mode: S.G 0.001, Con 0.1%
Value showed under solid mode: Apparent density, Volume, density & volume change rate
Value showed under liquid mode: Relative density, Concentration%
Temperature compensation: The solution temperature can be set from 0 to 49℃
Solution compensation: The solution density can be set to 19.999
Mixture density: Can set the mixture ratio of mixtures
Setting: Can set the density of different mixtures and reading time of density and volume change rate