Spray type water repellent tester

The tester meets the requirementsISO 4920TheAATCC 22TheM&S P23Standard.

　　1. safety

This section introduces the safety signs that run through this manual. Please read and understand all warnings and warnings before using the spray level tester.

danger!Ignoring instructions may result in the operator being in a dangerous state.

　　2. specification

physics

length:26centimeter

width:26centimeter

height:55centimeter

structure:steel

complete:spray painting

Ship weight:5kilogram

　　3. install

　　3.1 Settings

After turning on the spray level tester, place the tester on a flat and smooth surface in a room with stable temperature and humidity.

operation

　　5.1 Calibration device,Translate into English250Milliliters of distilled water27±1℃(80±2)The time required for testing and measuring an empty funnel.

　　5.2 Fix the sample firmly on the diameter152.4 mm (6.0 in)Expose the surface of the fabric sample to water mist within the ring. The surface of the sample should be smooth and wrinkle free.

　　5.3 Place the hula hoop on the fabriczuiOn the test bench above, make the center of the spray pattern coincide with the center of the hula hoop.

5.3.1If it is fine yarn, houndstooth, corduroy or similar structured fabric, place the iron ring on the rack to align the direction of the fabric withzuiThe direction of the final product is consistent.

　　5.4 pour into250Milliliters of distilled water27±1℃(80±2)Testers' funnel,Allow it to spray25 - 30Sample of the era.

5.4.1When pouring distilled water, avoid using a graduated cylinder to contact the funnel. The movement of the funnel will change the spray distribution on the sample.

　　5.5 hoop,Bottom edge,Resolutely oppose a solid object and the object faced by the fabric using opposite edges,Then rotate180°hoop,Once again before the deadline.

　　5.6 Repeat for all three samples5.2to5.5.

　　5. evaluate

　　6.1 Immediately compare the water or spot pattern with the rating sheet after clicking. Rate the surface of the sample, which corresponds to the rating chartzuiCorresponding to the nearest level.

　　6.2 Intermediate rating can be used for50Or a higher rating(95、85、75、60).(See figure1Table1)

　　6.3 When dealing with loose or porous fabrics(Like Barry's veil)When grading, do not consider any channels through which water passes through the fabric openings.