ISO 4920 Water Repellency Tester For masks testing

Suitable for Table cloth, tapestry, flooring material fabric manufacturer or processors.Water repellency test method is applicable to any textile fabric, which may or may not have been given a water-repellent finish. It is very necessary for a manufacturer to test the water repellency ability of the fabric. This method is especially suited for measuring the water-repellent efficacy of finishes applied to fabrics.The water repellency ability of the fabric is tested with spray test. The Evaluation of the test is visual appreciation of the surface of the fabric (number of absorption points on the surface). It is very important to test the repellency of a garment worn in foul weather conditions. The more the repellency more comfortable the fabric will be during use. The repellency tends to decrease during washing, so a re-impregnation of a water repellent product is advised.

Testing Standards:
ISO 4920, BS EN 24920, BS 3702, GB/T 4745, AATCC 22, M&S P23, NEXT 23

Applications:
Spray Rating Tester is used to determine the surface wetting resistance of fabrics.

Product Information:
The Spray Tester comprises a metal framework allowing distilled water to be sprayed through a nozzle onto a test specimen at 45¬ and 150mm below. The appearance of the specimen is compared against an optional photographic scale to rate.

Instrument features:
1. The instrument structure is simple, mainly by the main frame, funnel, nozzle, sample holder and sample holder;
2. Nozzle have a total of 19 aperture evenly distributed, the aperture required by the standard custom. 250ml of water poured into the funnel can flow out of the nozzle within 25-30s;
3. The racks on the upper edge of the racks are at a 45 ¬ angle to the horizontal;
4. The center of the upper edge of the sample holder ring, ie the distance from the center of the sample to the nozzle, is 150 mm.

Technical Parameters:
1. Structure: stainless steel;
2. Surface treatment: painting;
3. Dimensions: 230 × 250 × 500mm (length × width × height);
4. Weight: 5kg (11lb).

Attachment:
Nozzle and rubber hood;
water tray;
AATCC (22) Ratings Standard Chart Cards