Description
Hydrometer ASTM 9H-62 79 - 91 without thermometer is an A.P.I. gravity hydrometer designed to measure API gravity of petroleum products and comparable liquids. The scale spans 79 – 91 °API with a fine division of 0,1 °API, supporting precise visual reading during immersion. Overall length is approximately 330 mm, and the unit is supplied without a built-in thermometer so that temperature can be determined independently when the method requires it. Calibration reference temperature is 60 °F, matching the ASTM convention for this hydrometer series. From manufacturer Geco-Gering, the instrument fits laboratory and process-control environments that rely on standardized API gravity data for fuels and related streams. Its length is practical for typical hydrometer cylinders and sample vessels used in analytical workflows. Delivered as one piece, it is suitable for routine gravity checks that specify the ASTM 9H-62 range. Clear graduation and the fixed reference temperature help maintain consistent practice across operators and measurement series.
This article is part of Hydrometers, in Density & viscosity measurement.
Key features
- Pack size: 1 pc
- Storage temperature: 10-50
- Type: A.P.I. gravity hydrometer without thermometer
- Standard: ASTM 9H-62
- Measuring range: 79 – 91 °API
- Scale division: 0,1 °API
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Questions about Hydrometer ASTM 9H-62 79 - 91 without thermometer
What is this article?
Hydrometer ASTM 9H-62 79 - 91 without thermometer is the article on this page. Luminix Health distributes Geco-Gering for laboratory use. It sits in Hydrometers, inside Density & viscosity measurement, in Instruments de laboratoire.
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.
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The category is Density & viscosity measurement. The sub-category is Hydrometers. The catalogue is Instruments de laboratoire.
Shelves beside this one are Viscometers and Density meters & pycnometers.
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