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2. Laboratory rubber stopper - Wikipedia

   en.wikipedia.org/wiki/Laboratory_rubber_stopper

   A laboratory rubber stopper or a rubber bung or a rubber cork is mainly used in chemical laboratories in combination with flasks and test tube and also for fermentation in winery. [ 1 ] [ 2 ] [ 3 ] Generally, in a laboratory , the sizes of rubber stoppers can be varied up to approximately 16 sizes and each of it is specific to certain type of ...

3. Cork borer - Wikipedia

   en.wikipedia.org/wiki/Cork_borer

   A cork borer, often used in a chemistry or biology laboratory, is a metal tool for cutting a hole in a cork or rubber stopper to insert glass tubing. [1] Cork borers usually come in a set of nested sizes along with a solid pin for pushing the removed cork (or rubber) out of the borer. The individual borer is a hollow tube, tapered at the edge ...

4. Ground glass joint - Wikipedia

   en.wikipedia.org/wiki/Ground_glass_joint

   Crude versions of conically tapered ground glass joints have been made for quite a while, [1] particularly for stoppers for glass bottles and retorts. [2] Crude glass joints could still be made to seal well by grinding the two parts of a joint against each other using an abrasive grit, but this led to variations between joints and they would not seal well if mated to a different joint.

5. The secrets of cork: So much more than a bottle stopper - AOL

   www.aol.com/news/secrets-cork-much-more-bottle...

   Amorim Cork produces more than five billion of the approximately 13 billion cork bottle stoppers produced annually across the globe. It's enough to give the family firm comfortable supremacy in ...

6. Round-bottom flask - Wikipedia

   en.wikipedia.org/wiki/Round-bottom_flask

   24/40 is common for 250 mL or larger flasks, while smaller sizes such as 14/20 or 19/22 are used for smaller flasks. Because of the round bottom, cork rings are needed to keep the round bottom flasks upright. When in use, round-bottom flasks are commonly held at the neck by clamps on a stand.

7. Closure (wine bottle) - Wikipedia

   en.wikipedia.org/wiki/Closure_(wine_bottle)

   Synthetic corks for bottles A bottle of wine with an "easy open, easy recork" closure. Closure is a term used in the wine industry to refer to a stopper, the object used to seal a bottle and avoid harmful contact between the wine and oxygen. [1] They include: [2] Traditional natural cork closures ('corks');