The plastic watch glasses and weighing dishes from AllChimie are essential accessories for weighing and handling small quantities of solids or powders. Lightweight and unbreakable, they offer a practical alternative to glass versions.
Manufactured in polystyrene, polypropylene or PMP, these accessories feature a smooth surface that facilitates quantitative transfer of the sample after weighing. Single-use versions prevent any risk of cross-contamination for sensitive analyses.
The range covers several diameters and capacities to fit bench or analytical balances. Some references feature a pouring spout for more precise transfer to a flask or beaker.
During weighing, the watch glass receives the sample deposited using a scoop or spatula from a mortar after grinding. Once weighed, the sample can be stored in a plastic desiccator to preserve its gravimetric stability. For high-temperature applications or heated samples, the borosilicate laboratory glassware equivalents remain the reference.
