This standard specifies two testing methods for the light-shielding performance of coated fabrics: Method A - light-shielding rate measurement method: Method B - visual pinhole measurement method. This standard applies to all types of coated fabrics, as well as non-coated shading materials.
FZ/T 01009-1991 history
2008FZ/T 01009-2008 Textiles.Determination of the luminous transmittance of fabrics
1991FZ/T 01009-1991 Test method for shading properties of coated fabrics