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Glass pipettes are used to transfer precise quantities of fluids. Glass Ebulliometers are used to accurately measure the boiling point of liquids. [18] Other examples of glassware includes: Stirring rods are glass rods used to mix chemicals. Condensers are used to condense vapors by cooling them down and turning them into liquids. [19]
A PYREX measuring cup manufactured c. 1980, featuring graduations in both U.S. and metric units. Pyrex (trademarked as PYREX and pyrex) is a brand introduced by Corning Inc. in 1915, initially for a line of clear, low-thermal-expansion borosilicate glass used for laboratory glassware and kitchenware.
Reflected light was measured using a pyrometer lamp as a photometer. The 'glossimeter' was the first to use black glass standards as a basis for reflectance setting. As the angle was variable this instrument could also be used for the measurement of sheen or specular gloss at near grazing angles. Pfund's glossmeter
Some measuring cups will have a scale marked in cups and fractions of a cup, and often with fluid measure and weight of a selection of dry foodstuffs. Others are made to a specific capacity and are designed to be filled to the top with dry ingredients. Measuring cups may be made of plastic, glass, or metal.
A conical measure is a type of laboratory glassware which consists of a conical cup with a notch on the top to allow for the easy pouring of liquids, and graduated markings on the side to allow easy and accurate measurement of volumes of liquid. They may be made of plastic, glass, or borosilicate glass. The use of the conical measure usually ...
The exception to this definition is a slightly conical-sided beaker called a Philips beaker. The beaker shape in general drinkware is similar. Beakers are commonly made of glass (today usually borosilicate glass [3]), but can also be in metal (such as stainless steel or aluminum) or certain plastics (notably polythene, polypropylene, PTFE).
An hourglass (or sandglass, sand timer, or sand clock) is a device used to measure the passage of time. It comprises two glass bulbs connected vertically by a narrow neck that allows a regulated flow of a substance (historically sand) from the upper bulb to the lower one due to gravity. Typically, the upper and lower bulbs are symmetric so that ...
Gauge block, a metal or ceramic block of precisely known dimension, used in measuring; Sight glass, also known as a water gauge, for measuring liquid level heights in storage tanks and pressure vessels; Boost gauge, a gauge used in conjunction with turbo-super-chargers; Pressure gauge or vacuum gauge, see pressure measurement
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