玻璃器皿

相關資源

• Technical Bulletin: Suggestions for Cleaning Glassware

  Good laboratory technique demands clean glassware, because the most carefully executed piece of work may give an erroneous result if dirty glassware is used. In all instances, glassware must be physically clean; it must be chemically clean; and in many cases, it must be bacteriologically clean or sterile. All glassware must be absolutely grease-free. The safest criteria of cleanliness is uniform wetting of the surface by distilled water.

• Technical Bulletin: Safe Use of Laboratory Glassware

  Laboratory glassware comes in all shapes and sizes of vessel, flask, bottle, container, tubing, etc. and is used in various applications. Below, we have outlined the main hazards associated with laboratory glassware, and the precautions that should be taken to reduce the risk of injury.

• Technical Bulletin: Description of Pyrex^® Brand 7740 Glass Used in Corning Labware

  Of the hundreds of commercial glasses produced, Code No. 7740 borosilicate glass comes closest to being the ideal glass for most laboratory applications. With proper care, it will withstand nearly all temperatures used in normal laboratory use. It is highly resistant to chemical attack. Its low coefficient of expansion allows it to be manufactured with heavy walls, giving it mechanical strength, while retaining reasonable heat resistance. And, it is a glass that can be fabricated more easily than most other glasses, thus making it more economical.

• Technical Bulletin: Description of Soda Lime Glass Used in Corning Labware

  Soda Lime Glass. Code No. 0215. Used for Flint Glass

• Technical Bulletin: Guide to Selecting and Using Fritted Glassware

  Up to five different porosities of fritted ware are available so that precipitates varying in size can be filtered at maximum speed with no sacrifice of retention.

• Threaded Ground-glass Joint Tutorial

  Step 1 - A complete threaded ground-glass joint. Step 2 - It consists of an externally threaded female ground-glass standard taper joint and a corresponding male joint with threaded plastic nut. Step 3 - A plastic retaining ring loosens the joint for safe disassembly. Step 4 - The threaded plastic nut secures the joint without the use of clamps. Step 5 - The O-ring seals above the ground glass joint, eliminating the need for grease on the joint.