Quick Answer:The Watch Glass (Pack of 12) is a pack of 12 shallow concave glass discs with polished edges, made in 50 to 150 mm diameters, for weighing, drying and covering beakers.
Last updated: 19 October 2026
Key Features
Pack of 12.
Uniformly concave, shallow profile.
Fire-polished edge, ground to resist chipping.
Diameters of 50, 75, 100, 125 and 150 mm.
Technical Specifications
Specification
Value
Quantity
12
Diameters
50, 75, 100, 125, 150 mm
Shape
Uniformly concave
Edge
Fire polished
How It Is Used
A watch glass holds a small amount of solid for weighing, lets a small volume of liquid evaporate, or rests over a beaker as a cover to keep dust out and reduce splashing.
Frequently Asked Questions
What sizes is the Watch Glass (Pack of 12) available in?
Diameters of 50, 75, 100, 125 and 150 mm, packed 12 to a pack.
Related Lab Glassware
See the full lab glassware range, or these related general laboratory glassware:
Buyers in Kenya, Turkmenistan, Albania, Vietnam, Uzbekistan and Bosnia and Herzegovina can order the Watch Glass (Pack of 12) from JLab India as an export order.
For a quotation on the Watch Glass (Pack of 12), contact JLab India on +91-8569909696.