This standard specifies the type, basic parameters, main dimensions and technical requirements of glass-lined open mixing vessels. This standard is applicable to vessels with design pressures less than or equal to 1.0MPa, volumes of 50 L to 5000L, design pressures within the jackets less than or equal to 0.6MPa, and medium temperatures within the vessels and jackets higher than -20°C and less than or equal to 200°C. Glass lined open mixing vessel.