Description
Hydrometer according to Twaddell for the range 102–138 °Twaddell with a scale division of 1 °Twaddell and accuracy of ± 1 scale division enables density measurements reported in Twaddell degrees. The instrument measures 150 mm in length and is calibrated to a reference temperature of 60 °F. It is delivered without a thermometer and is designed for bottom reading. This Amarell hydrometer displays a continuous scale from start value 102 to end value 138 in uniform 1 °Twaddell steps. Its 150 mm length suits standard laboratory immersion practice while preserving readability of the stem graduations. Bottom reading supports straightforward alignment of the liquid level with the scale. As no thermometer is built in, the sample temperature should match the 60 °F reference before the reading is recorded. Accuracy of ± 1 scale division corresponds to the scale division value, setting both resolution and tolerance across 102–138 °Twaddell. Supplied as 1 piece, the hydrometer fits density control tasks that call for this higher Twaddell interval. Consistent scale spacing and the stated reference condition assist reliable day-to-day use in laboratory and process environments.
This article is part of Hydrometers, in Density & viscosity measurement.
Key features
- Pack size: 1 pc
- Scale range: 102–138 °Twaddell
- Scale division: 1 °Twaddell
- Accuracy: ± 1 scale division
- Length: 150 mm
- Reference temperature: 60 °F
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Questions about Hydrometer according to Twaddell, 102-138:1°Twaddell, accuracy +/- 1 scale
What is this article?
Hydrometer according to Twaddell, 102-138:1°Twaddell, accuracy +/- 1 scale is the article on this page. Luminix Health distributes Amarell for laboratory use. It sits in Hydrometers, inside Density & viscosity measurement, in Lab instruments.
A hydrometer floats in a liquid and the stem reading is the density or a related scale such as Brix. The liquid has to be at the temperature printed on the stem, or a correction is required. A chip on the stem changes the reading. One hydrometer does not cover every density.
Density is mass divided by volume. A hydrometer floats at a depth that depends on the density of the liquid. A pycnometer is a vessel of known volume that is weighed full. Viscosity is the resistance to flow. A capillary viscometer times how long a volume takes to fall through a tube. Both measurements need a stated temperature, because liquids change density and viscosity as they warm. The units trace to the BIPM and to NIST.
Which category should I open next?
The category is Density & viscosity measurement. The sub-category is Hydrometers. The catalogue is Lab instruments.
Shelves beside this one are Viscometers and Density meters & pycnometers.
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