Hardness scales may refer to: Methods of measuring mineral hardness Scratch hardness The Mohs scale of mineral hardness The Vickers hardness test The Brinell scale The Janka hardness test The Rockwell scale The Durometer scale The Barcol scale The Leeb rebound hardness scale The Rosiwal scale The Meyer hardness test The Knoop hardness test
Other hardness scales Hardness scales may also refer to: Methods of measuring the deposit formation by hard water. The scale of Pencil hardness