Bundesmann Rain Tester used for determination of water repellency of fabrics to the rain-shower method. Test specimens of the fabrics under test are simultaneously exposed to a simulated heavy rain shower. The water repellency of the fabric is assessed by comparison of the wet fabrics to a standard chart.The water absorbed by the specimens is determined after the test is over which is the measure for resistance to wetting. It consists of 4 specimen holders of 100mm diameter cups. Rain is produced by 300 pieces nozzle and falls down from 1500 mm height from the fabrics. It is set with the centrifuge device.
ISO 9865, DIN BS EN 29865, NF 907 - 058