This standard specifies methods for measuring the characteristic parameters of reflective and transmissive projection screens. This standard applies to reflective and transmissive screens for movies, slide shows, projections and video projections, and does not apply to screens for other special purposes.
JB/T 8389-2001 history
2005JB/T 7809-2005 Characteristic parameter and measurement of projection screens
2001JB/T 8389-2001 Measurment for characteristic parameter of a projection sereen
JB/T 8389-2001 Measurment for characteristic parameter of a projection sereen was changed to JB/T 7809-2005 Characteristic parameter and measurement of projection screens.