SJ 21315-2018 "General Specification for spin coating and Hot Plate Equipment" is a standard for the technical requirements and usage specifications of spin coating equipment and Hot Plate equipment. The standard describes the structural design, performance parameters, operation requirements and Safety protection measures of the equipment in detail, covering the precautions during the installation, commissioning, maintenance and use of the equipment. The standard aims to ensure the Stability and Reliability of the equipment in various industrial applications, promote the standardization and safe operation of the equipment, and has important guiding significance for improving the performance and prolonging the service life of the equipment.