The standard "GB/T 10222-1988 exterior inorganic architectural coatings" defines the general technical conditions for exterior inorganic architectural coatings. The standard applies to exterior coatings with alkali metal silicate and silica sol as the main binder, covering the classification, technical requirements and test methods of coatings. The standard specifies in detail the performance indicators of coatings, low temperature and high temperature storage ability test methods, drying time and water resistance tests to ensure that coatings have good durability and decorative effect in the application of building exterior.