METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM

摘要

A method for manufacturing a glass substrate for an information recording medium, wherein the abrasive and foreign materials adhered on the glass substrate after the polishing step are surely removed without making the cleaning step complicated. The glass substrate is cleaned by scrubbing with water to which 0.5-5.0 mass% of hydrogen peroxide has been added as a cleaning solution.