Impact Penetration Tester, is to determine the resistance of fabric to the penetration of water by impact, and thus can be used to predict the probable resistance of fabrics to rain penetration.
It is especially suitable for measuring the penetration resistance of garment fabrics, and also used to test the Water Resistance(Impact Penetration test) performance of medical protective clothing.
Standards:
- Medical Masks and Protective Clothing: NFPA 1999 – 2018, GB/T4745-1997, GB 19082 – 2009
- AATCC 42
Specifications:
- The size of the spray head 56mm diameter, the hole of spray head is 1mm diameter, 25 pcs.
- The distance from the bottom of spray head to the centre of specimen 600 mm
- The volume of tested water 500 ml
- Metal Roller 113 mm ± 6 mm, weighing 1 kg
- Angle 45°
- The specimen size 200 x 200 mm
- Weight 27 Kg
- Dimensions 440 x 290 x 1280mm (L x W x H)
Definitions of Waterproofing and Water Permeability of Fabrics:
In daily life, people often contact with water, which put forward waterproof requirements for all kinds of textile. The waterproof and permeable properties are two sides in one property of the fabric, which refers to the resistance to water wetting and permeation by the water of the fabrics.
The Testing Categories of Fabric Waterproofing:
The main indexes of the fabric waterproof are dip water grade, hydrostatic pressure resistance grade, and water permeation capacity, and there are two kinds of test methods: spray method and hydrostatic pressure method. In order to measure the water permeability or waterproofing of fabrics, different methods are used depending on the actual use of the fabric, and the corresponding indexes are used to express the water permeability of fabrics.
Test Purpose and Test Scope:
Impact penetration tester tests the waterproof properties of fabrics by the spray method, which is applicable to any fabric with or without waterproof or water repellent treatment. The AATCC 42 standard can be used to measure the impact water permeability of fabrics, to predict the permeability against rainwater of fabrics, especially to measure the impermeability of clothing fabrics.