Fabric inspection

Inspection Lighting – Examination and grading is to be performed with overhead direct lighting to determine faults on the surface of the fabric. The overhead direct lighting should be mounted parallel to the viewing surface. The frame should be tilted so that the fabric passes at an angle of 45 – 60 degrees to the horizontal. Overhead CWF lighting is recommended and should provide an illumination level of a minimum of 100 foot candles (1075 lux) on the surface of the fabric.