This standard specifies the structure, assembly type, parameters, main dimensions and technical requirements of glass-lined thermometer sleeves. This standard is applicable to thermometer sleeves of glass-lined stirring vessels with nominal pressures less than or equal to 1.0 MPa, medium temperatures higher than -20°C and lower than or equal to 200°C, equipped with anchor-type or frame-type stirrers. It is also applicable to those equipped with paddle-type or Impeller type mixer, the nominal diameter of the container is less than or equal to 500mm, and the thermometer sleeve is used for the mixing container.