Watch glasses are round, slightly concave glass dishes for use in the laboratory. They are commonly used as a surface for small quantities of substances, for weighing materials and for temporarily covering laboratory glassware.
At Helios Holland, you will find laboratory watch glasses in different diameters. Choose the size based on your application and always check the product specifications of the selected watch glass before use.
Explore the available watch glasses below and choose the required diameter.
Clear 100 mm glass watch glass with ground edge
Clear 80 mm glass watch glass with ground edge
A watch glass is a simple and versatile tool for laboratory work. Its round, slightly concave shape makes it suitable for a variety of tasks.
Watch glasses can be used as a surface when weighing small quantities of solid substances. They can also be used for temporarily holding small quantities of material.
Another common application is loosely covering a beaker or other suitable laboratory glassware. A watch glass does not form a sealed lid. For this application, choose a diameter that is suitable for the opening of the glassware you want to cover.
Depending on the material and product specifications, a watch glass may also be suitable for other laboratory applications. Always check the specifications of the selected product.
The correct diameter depends on the application. If you use the watch glass as a surface for a small quantity of material, you can select the size based on the amount of working space required.
If you want to use a watch glass to temporarily cover laboratory glassware, check the diameter of the opening you want to cover and compare it with the dimensions of the watch glass.
The available diameter is specified for each product, making it easy to compare different sizes.
In addition to watch glasses, Helios Holland offers a range of other tools and glassware for laboratory work.
Explore our complete range of laboratory supplies including measuring beakers, graduated cylinders, pipettes, Erlenmeyer flasks, funnels and other laboratory products.
