This standard specifies a simple test method for determining the solar radiation shielding coefficient of sunshades used on the indoor side of windows for the purpose of shielding solar radiation incident through window glass.
JIS A 1422:1993 history
2015JIS A 1422:2015 Simplified test method for determining shading coefficient of shading devices
1993JIS A 1422:1993 Simplified test method for determining shading coefficient of shading devices