LEIMCO Twaddle Hydrometer | Glass Hydrometer for Liquid Density & Concentration Measurement

The LEIMCO Twaddle Hydrometer is a precision glass instrument designed to measure the Twaddell scale of liquids, commonly used in industrial applications to estimate the relative density and concentration of liquids heavier than water.

Featuring a graduated glass stem and a weighted bulb, the hydrometer floats in the liquid and indicates the reading at the liquid surface. It is suitable for routine measurements in laboratories, chemical processing, textile operations, and other industrial environments where Twaddell-scale measurements are required.

Key features

• Manufactured in glass for liquid measurement applications.

• Graduated scale for direct Twaddell readings.

• Designed for liquids with a specific gravity greater than water.

• Simple, easy-to-use operation without electronic power.

• Suitable for laboratory testing and industrial process monitoring.

• Compact design for convenient handling and storage.

Available models and ranges

The following Twaddle ranges are listed for Leimco-type glass hydrometers calibrated at 20°C. Confirm the exact Leimco catalogue number before publishing variants. 

Technical specifications

Applications

• Chemical and industrial liquid concentration testing

• Textile processing and dyeing laboratories

• Chemical manufacturing and quality control

• Laboratory education and research

• Routine density-related measurements of suitable liquids

How to use

1. Fill a clean, sufficiently tall measuring cylinder with the liquid.

2. Gently lower the hydrometer into the liquid without letting it touch the sides or bottom.

3. Allow it to float freely and stabilize.

4. Read the scale at the appropriate liquid meniscus according to the instrument instructions.

5. Use the specified reference temperature and applicable temperature correction for accurate results.

Important: Twaddle readings are related to specific gravity, but they are not a direct percentage concentration measurement. Select the range appropriate for the liquid being tested.