Bundesmann Water Repellency Tester

The device is a practical test method for rainfall, applicable to clothing products, including waterproof cloth. It is used for measuring the wet-ability of the surface of the sample used in the natural rain, the amount of water absorbed, and the outflow rate of the permeated fabric, and evaluating the water repellency. The instrument consists of a rainfall portion and a test driving portion. The rainfall section consists of 300 identical drips and the baffle when the test isn’t going on that rainfall from the side of the flow out. The test driving portion consists of four test cups with an outer diameter of 10 cm. The test cup is mounted at 15 ° from the vertical and the test cup is composed of a sample installation box and a cross-shaped wiper that the underside of the sample and rub with each other. The test cup is rotated around the center of the instrument and fixed to the drive portion.
 
アプリケーション
 The device is a practical test method for rainfall, applicable to clothing products, including waterproof cloth.  
 
Standards
 JIS L 1092 Test method for water resistance of textiles
GB/T 14577 Bundesmann rain test method for fabric water repellency determination
ISO 9865 Textiles - Determination of water repellency of fabrics using the Bundesmann rain test
BS EN 29865 Textiles - Determination of the water repellency of fabrics using the Bundesmann rain test
DIN53888 Textiles - Determination of water resistant permeability - Hydrostatic test
 
Feature
 ¨ The rainfall portion consists of 300 identical drips.
¨ The test driving portion consists of four test cups with an outer diameter of 10 cm.
¨ The test cup is mounted at 15 ° from the vertical.
¨ The test cup is composed of a sample installation box and a cross-shaped wiper that the underside of the sample and rub with each other.
¨ The test cup is rotated around the center of the instrument and fixed to the drive portion.
 
Technical Parameters