General Purpose Glass Thermometers, 305 mm, LO-tox Filled

Description

The General Purpose Glass Thermometers, 305 mm, LO-tox Filled, also known as LO-tox laboratory thermometers, non-mercury liquid-in-glass thermometers or laboratory immersion thermometers, are designed for measuring temperatures during scientific experiments, routine testing and educational laboratory activities. Manufactured by Brannan UK, these thermometers use a specially developed organic liquid filling that provides a practical alternative to traditional mercury thermometers. Their graduated Celsius scales allow temperature readings without batteries or electronic equipment. The range includes eight variations across four temperature ranges, with different scale divisions and immersion requirements. This allows laboratories to select a thermometer suited to the expected temperature and measurement procedure.

The -35°C to +50°C thermometers feature 1.0°C divisions and are available in both 76 mm partial immersion and total immersion configurations. They support low-temperature investigations, cooling experiments and general laboratory measurements. The -20°C to +110°C thermometers provide an extended upper temperature range with 1.0°C graduations. Both partial and total immersion options are available. The manufacturer reference for the partial immersion model specifies +110°C, although one supplied product title states +100°C. The -20°C to +150°C thermometers feature 1.0°C divisions and provide additional capacity for measuring higher temperatures during suitable laboratory heating experiments. These models are available with either partial or total immersion.

The -10°C to +50°C thermometers feature finer 0.5°C scale divisions, making them suitable for temperature investigations requiring smaller graduation intervals. They are available in both immersion configurations. All eight models measure 305 mm in length and approximately 6.5 mm in diameter, providing an elongated glass body with clearly spaced graduations for convenient reading. The blue LO-tox liquid filling expands and contracts with temperature changes. Its movement within the narrow glass capillary indicates the measured temperature against the graduated scale. Brannan’s LO-tox organic filling is designed to provide a useful temperature range while reducing the hazards associated with mercury. However, the liquid and glass components still require appropriate laboratory handling.

The 76 mm partial immersion models are calibrated for immersion to a specified depth. The total immersion models require the liquid column to be immersed to approximately the level of the temperature being measured. Each thermometer features a non-roll Evoprene end cap with a suspension ring, helping prevent accidental rolling and allowing convenient storage in compatible laboratory holders. These instruments are suitable for chemistry experiments, heating and cooling investigations, liquid temperature measurements and routine laboratory testing. The appropriate variation should be selected according to its range, graduation interval and immersion requirements.

For accurate readings, immerse the thermometer correctly, allow the liquid column to stabilise and read the Celsius scale at eye level. Safety Precautions: Handle glass thermometers carefully. Avoid impacts, direct flames, sudden temperature changes and measurements outside the specified range. Follow laboratory safety procedures if breakage or liquid leakage occurs. Each selected variation is supplied as one Brannan LO-tox Glass Thermometer in a protective telescopic tube. Calibration certificates are available separately on request.

LabChoice Australia supplies LO-tox laboratory thermometers and temperature measurement equipment for schools, universities, research facilities and scientific laboratories across Australia.