| 1. | The viscous one is used for standard stopcocks and ground joins.
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| 2. | A stopcock may be included to permit the desiccator to be evacuated.
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| 3. | The common stopcock is the simplest form of rotary valve.
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| 4. | Cock is a term for valve; see, for example, stopcock.
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| 5. | In that book Winkler describes his invention of the three-way stopcock.
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| 6. | Stopcocks used in laboratory glassware are typically forms of conically tapered plug valves.
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| 7. | A Schlenk filter consists of sintered glass funnel fitted with joints and stopcocks.
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| 8. | The quantity of gas consumed by each burner was regulated by a stopcock.
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| 9. | The plastic stopcocks are at most lightly oiled.
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| 10. | For example, what ChemGlass calls a glass stopcock, Kontes calls a glass plug.
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