AS 2378-1996 is an Australian standard specifying the requirements for Gay-Lussac type Density bottles for the determination of liquid Density. The standard describes in detail the specifications for the design, manufacture and use of Density bottles to ensure accuracy and reliability in the measurement of liquid Density. Density bottles, as an important laboratory equipment, are widely used in chemical, physical and industrial fields for the accurate determination of liquid Density. The standard provides uniform technical guidance for the production and use of Density bottles, helping users to select and use Density bottles that meet the requirements, thereby improving the accuracy and repeatability of experimental data.