Ludwig Schneider Hydrometers for Liquid Gases are precision measuring instruments designed to determine the density or specific gravity of liquid gases with high accuracy. The instrument operates by being immersed in the liquid until the weight force of the displaced liquid matches the weight force of the body, making these hydrometers indispensable in laboratories, dairies, and wineries for various industrial and scientific applications.
Below are the primary characteristics and uses of these instruments:
- Principle of Measurement: Utilizes the physical principle of buoyancy, where the immersion depth indicates the specific gravity of the medium.
- Versatile Applications: Widely used in professional settings such as laboratories for chemical analysis, dairies for milk quality control, and wineries (must scales) to monitor fermentation.
- Precision Engineering: Built to provide reliable density readings, ensuring consistent quality control in fluid-based processes.

Precision hydrometer for liquid gases are used for measurements in liquid hydrocarbons as e.g. propane, butane, mixtures there of or like media To retain liquidity a pressure of up to 15 bar is possible at +15 °C. The thermometer tube is enclosed in an additional glass guard which helps avoid faulty reading due to pressure to the thermometer tube.. Common norms specifications like DIN 12804 and ASTM E100-19 are complied with, of course.
Technical Data of Ludwig Schneider Hydrometers for Liquid Gases
| FEATURE | VARIANTS |
|---|---|
| Measuring range | 0.500 bis 0.650 g/?cm³ (SG) |
| Norms | DIN 12804 ASTM E100-19 |
| Variants | With integrated thermometers |
| Thermometer filling | Metallic |
| Reference temperature | 15 °C (60/60 °F) |
| Resolution | Bis zu 0.0005 g/?cm³ and 0.001 SG |
| Accuracy | ±0.0005 g/cm³ and 0.001 sp/gr |
| Accessories | Cylindrical stands made of glass |
Source: ludwig-schneider.de/en/
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