Guides
Notes for the bench
Practical notes for the glass in this catalog. They are not a substitute for a lab procedure.
Glassware5 min
When a beaker should be borosilicate
Soda-lime is fine for a watch glass. Heat and repeated washing are why the rest of the bench is borosilicate 3.3.
Measurement4 min
Reading a meniscus without guessing
Cylinders deliver. Volumetric flasks contain. The mark only means something if your eye is level with it.
Care5 min
A wash routine that keeps glass in service
Detergent, a rinse that sheets, and a rack that lets cylinders dry mouth-down.
Setup6 min
What belongs on a first teaching bench
Three glass pieces, a way to measure, gloves, and goggles. Add the rest when a method asks for it.