ISO 4920 Non Woven Fabric Water-Stain Testing Machine,Water
Repellency Tester
INTRODUCTION
Water repellency is an important property of textile fabrics to
measure the efficiency of water resistant/repellant finishing
applied on textiles. YG813 Spray Rating Tester is the appropriate equipment to test the property spraying a
specified volume of distilled water is sprayed on a Test specimen,
which has been mounted on a ring and placed at an angle of 45°, so
that the center of the specimen is 150mm below the spray nozzle.
The Spray rating is determined by comparing the appearance of the
specimen with AATCC Spray Test Rating Chart.
USAGE
To determine the water repellency or surface wetting resistance of
fabrics. Appearance of the specimen is compared against
photographic chart.
TESTING STANDARDS
ISO 4920-Determination of resistance to surface wetting (spray
test)
AATCC 22-Water repellency:spray test
BS 3702-Determination of Resistance of Textile Fabrics to Surface
Wetting (Spray Test)
IS 390-Determination the water repellency of fabrics by water spray
test
NEXT 23,WSP 080.1.R4 (12),BS EN 24920,M&S P23
SALIENT FEATURES
1. Spatially designed equipment to measure the resistance of
fabrics to wetting by water.
2. Latest economic design with modern esthetics.
3. With Stainless steel spray nozzle for rust free, long life &
durability.
4. Complete with all accessories including 500ml beaker, template
for cutting specimen.
5. Specimen holder is fixed at 45°to the specification of American
standard.
6. Supplied with calibration & inspection certificates.
TECHNICAL DETAILS
1. Size of test specimen:180 x 180 mm square.
2. Spray nozzle:Converse face with 19 holes.
(Center-1, First circle-6, Second circle-12)
3. Rate of water spray:250 ml in 25 to 30 seconds.
4. Position of test specimen:Mounted on a ring and placed at an
angle of 45°.
5. Distance between center of spray: 150 mm (±2 mm)
nozzle and center of the specimen
6. Holder Dia.:150 mm (±5 mm)
7. Plastic funnel dia.:150 mm (±5 mm)
8. Height of the funnel with nozzle:200 mm (±10 mm)
9. Dimensions:200 x 250 x 480 mm
10. Weight:5 Kg
ACCESSORIES SUPPLIED WITH THE INSTRUMENT
1. Main Unit:01 No.
2. Calibrated Beaker (500 ml.) (Plastic):01 No.
3. Specimen Template:01 No.
4. This User’s Manual:01 No.
5. Inspection & Conformance Certificate:01 No.
Machine Certificate:
