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A glass electrode is a type of ion-selective electrode made of a doped glass membrane that is sensitive to a specific ion. The most common application of ion-selective glass electrodes is for the measurement of pH. The pH electrode is an example of a glass electrode that is sensitive to hydrogen ions. Glass electrodes play an important part in ...
American breweries fluctuated between 11 and 13 ounces before gradually standardizing on a median 12 ounces after World War 2. The American Twelfth (10.66 US oz [315 mL], or 1 ⁄ 12 a US gallon), American Commercial Pint (12.8 US fl oz [378 mL], or 1 ⁄ 10 a US gallon) / British Reputed Pint (13.33 imp oz [378 mL], or 1 ⁄ 12 an Imperial ...
Yarwood and Castle have their transformer oil on page 37. Paper: Ordinary Paper Engineeringtoolbox 0.05 [5] Yarwood and Castle 0.125 [73] Oil Impregnated Paper 0.180 — 0.186 [32] 298 [5] 291.15 294.7 — 385.2 The oil-impregnated paper was about 0.05 inches thick and it was loaded under about 2 PSI. TPRC Volume 2, page 1127.
An analytical balance (or chemical balance) is a class of balance designed to measure small mass in the sub-milligram range. The measuring pan of an analytical balance (0.1 mg resolution or better) is inside a transparent enclosure with doors so that dust does not collect and so any air currents in the room do not affect the balance's operation ...
Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion (≈3 × 10 −6 K −1 at 20 °C), making them more resistant to thermal shock than any other common glass. Such glass is subjected to less thermal ...
v. t. e. The viscosity of a fluid is a measure of its resistance to deformation at a given rate. [1] For liquids, it corresponds to the informal concept of "thickness": for example, syrup has a higher viscosity than water. [2] Viscosity is defined scientifically as a force multiplied by a time divided by an area.
Ethanol is used to dissolve many water-insoluble medications and related compounds. Liquid preparations of pain medications , cough and cold medicines , and mouth washes, for example, may contain up to 25% ethanol [ 37 ] and may need to be avoided in individuals with adverse reactions to ethanol such as alcohol-induced respiratory reactions ...
Glass coloring and color marking may be obtained in several ways. by the addition of coloring ions, [1][2] by precipitation of nanometer-sized colloids (so-called striking glasses[1] such as "gold ruby" [3] or red "selenium ruby"), [2] Ancient Roman enamelled glass, 1st century, Treasure of Begram. by colored inclusions (as in milk glass and ...