This standard specifies the general test method for stain resistance of white and light-colored architectural exterior paint coatings. This standard applies to the determination of the stain resistance of decorative and protective coatings on the exterior surfaces of buildings and structures.
GB/T 9780-2005 history
2013GB/T 9780-2013 Test method for dirt pickup resistance and stain remvoal of film of architectural coatings and paint
2005GB/T 9780-2005 Test method for dirt pickup resistance of film of architectural coatings and paints
1988GB/T 9780-1988 Test method for dirt resistance of film of architectural coatings and paint