Description
Hydrometer according to Twaddell is a density measuring instrument spanning the scale range from 0 to 26 °Twaddell with a scale division of 1 °Twaddell. Stated accuracy is +/- 1 scale division value. The glass instrument measures 150 mm in length and is calibrated to a reference temperature of 60 °F. It is supplied without a thermometer, and scale values are read at the bottom when the hydrometer floats in the test liquid. This Twaddell hydrometer from manufacturer Amarell is used for density determination of aqueous and process liquids where Twaddell degrees are the established reporting convention. The 0–26 interval covers the lower segment of the Twaddell scale and supports routine laboratory checks as well as production monitoring. Each unit is provided as a single piece for laboratory inventories and teaching collections. Bottom reading simplifies observation of the graduated stem at the liquid surface. By omitting an integrated thermometer, the design concentrates on clear density indication at the defined reference temperature of 60 °F.
This article is part of Hydrometers, in Density & viscosity measurement.
Key features
- Pack size: 1 pc
- Length: 150 mm
- Scale range: 0–26 °Twaddell
- Scale division: 1 °Twaddell
- Accuracy: +/- 1 scale division
- Reference temperature: 60 °F
Recently viewed
You may also like
Questions about Hydrometer according to Twaddell, 0-26:1°Twaddell, accuracy +/- 1 scale
What is this article?
Hydrometer according to Twaddell, 0-26:1°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.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.