PROOF PLANE
Product Description
A Proof Plane is a flat, thin, and smooth metallic or plastic tool used in laboratory and educational settings primarily for transferring small amounts of powdered substances or samples. Its precise, rigid surface enables the easy lifting and placement of powders onto other surfaces such as balances, microscope slides, or reaction vessels without contamination. Often used in qualitative analysis, the Proof Plane facilitates accurate handling of chemicals, minimizing spillage and waste. Available in various sizes and materials, it is an essential apparatus for fine sample manipulation in analytical and teaching laboratories.