防水测试方法及标准英文版

防水测试方法及标准英文版

Waterproof Testing Methods and Standards

There are various testing methods and standards utilized to

determine the level of waterproofness of a product. These methods

outline the specific conditions and procedures for conducting the

tests accurately.

1. Spray Test: This method determines the water resistance of a

product's surface. It involves spraying water onto the product at a

specific pressure and temperature for a set duration. The product

passes the test if there is no water penetration.

2. Immersion Test: This method evaluates the waterproofness of a

product when completely immersed in water. The product is

submerged to a specific depth, and the duration of the immersion

varies depending on the standard being followed. The test is

considered successful if no water enters the product.

3. Hydrostatic Pressure Test: This method measures the resistance

of a product to water penetration under static pressure. The product

is subjected to water pressure on one side, while the other side is

kept dry. The test is considered successful if the material does not

allow water to penetrate, as measured by the hydrostatic head in

millimeters.

4. Rain Test: This method simulates rainfall conditions to assess a

product's ability to resist water penetration. The product is exposed

to a controlled amount of rainfall for a set period while being

assessed for any water entry.

5. Water Penetration Test: This method measures the amount of

water that penetrates a fabric or material over a specific time

period. The material is subjected to a constant flow of water, and

any water that passes through is collected and measured. The test is

considered successful if the material allows minimal or no water

penetration.

Standards

1. ISO 811: This standard specifies the test method to determine

the resistance of fabrics to water penetration using the hydrostatic

pressure test.

2. ASTM D751: This standard outlines the procedure for testing

the water resistance of textile fabrics using the spray test method.

3. JIS L 1092: This Japanese Industrial Standard provides the test

method for determining the waterproofness of textiles using the

spray test.

4. EN 343: This European standard specifies the requirements and

test methods for protective clothing against precipitation, fog, and

wind.

It is essential to refer to specific industry standards or product-specific requirements to ensure accurate testing and reliable

assessment of waterproofness.