Description
Density hydrometer type 4 is a compact glass instrument for liquid density determination over the range 0,880 to 0,940 g/cm³, with a scale division of 0,001 g/cm³. The body is 160 mm long and is calibrated to a reference temperature of 20 °C. It is supplied without an integrated thermometer and is intended for bottom scale reading, supporting clear meniscus observation during routine measurements. This type 4 hydrometer is useful in laboratory and process settings where samples fall within a relatively narrow density band just below 1 g/cm³, for example in quality control, formulation checks, or incoming-goods screening. From manufacturer Amarell, the instrument is offered as a single piece, so it can be stocked as a dedicated range tool or combined with neighbouring type hydrometers to cover a wider density continuum. Bringing the sample to the stated reference temperature before immersion helps operators obtain consistent comparative readings. The defined start and end values of the scale, together with the fine 0,001 g/cm³ graduation, make the instrument suitable for everyday density work that does not require an on-board thermometer.
This article is part of Hydrometers, in Density & viscosity measurement.
Key features
- Pack size: 1 pc
- Type: 4
- Measuring range: 0,880–0,940 g/cm³
- Scale division: 0,001 g/cm³
- Length: 160 mm
- Reference temperature: 20 °C
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Questions about Density hydrometer, type 4, 0,880-0,940:0,001g/cm³, 160mm long, reference
What is this article?
Density hydrometer, type 4, 0,880-0,940:0,001g/cm³, 160mm long, reference 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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