WATER ABSORBENCY TESTER
| The test is performed in compliance with AATCC test Method 42 the INDIA IST method 80.3 na AAMI PB 70. This test procedure employs the use of a 2inch diameter spray head with 25 holes drilled with a #61(0.0390 inches)
bit. The center of the test specimen is positioned at a 45 angle, 0.6m below the spray head. A500ml liquor of deionizer water is allowed to pass through the spray head and directly onto the surface of the specimen. A pre-weighed blotter paper is placed under the test specimen. Water penetration is determined by comparing the initial blotter with the weight after exposure. Minimum sample size 7 x 13 inches (18 cm x 33cm) As per ASTM – D 4772 – 97 – 2004 |
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Description
Water Absorbency Tester
The Water Absorbency Tester is designed for evaluating the water penetration and absorbency characteristics of textile materials under a controlled water spray test. The test uses a spray head to apply a specified quantity of deionized water onto the test specimen, while a pre-weighed blotter paper is placed underneath to determine the amount of water that passes through the material.
The test procedure is used for evaluating textile materials according to the specified test methods and requirements. The equipment is suitable for applications where water penetration through a fabric needs to be measured by comparing the weight of the blotter paper before and after exposure.
Test Principle of Water Absorbency Tester
The test specimen is positioned at a 45° angle below the spray head. A 2-inch diameter spray head with 25 holes is used to distribute water onto the specimen.
A 500 ml quantity of deionized water is allowed to pass through the spray head and directly onto the surface of the test specimen. A pre-weighed blotter paper is placed underneath the specimen.
After the water exposure, the blotter paper is weighed again. The difference between the initial and final weight of the blotter paper is used to determine the amount of water that has penetrated through the test specimen.
Test Procedure
- The test specimen is prepared according to the required sample dimensions.
- The specimen is positioned at a 45° angle below the spray head.
- A pre-weighed blotter paper is placed underneath the test specimen.
- 500 ml of deionized water is passed through the spray head.
- Water is sprayed directly onto the surface of the specimen.
- After exposure, the blotter paper is weighed again.
- Water penetration is determined by comparing the initial and final weights of the blotter paper.
Spray Head
The specified test arrangement uses a 2-inch diameter spray head having 25 holes. The holes are drilled using a #61 bit with a diameter of 0.0390 inches, according to the provided technical information.
Sample Size
The minimum sample size specified for the test is:
7 × 13 inches (18 cm × 33 cm)
The specimen size should be prepared according to the applicable test method and testing requirement.
Related Test Methods and Standards
The provided technical information specifies the following methods and standards:
- AATCC Test Method 42
- NWSP 80.3
- AAMI PB70
- ASTM D4772-97-2004
AATCC TM42 is a test method for measuring resistance of textile fabrics to water penetration by impact. ASTM D4772, meanwhile, covers surface water absorption of terry fabrics using a water-flow method.
For this reason, on your website I would write “Related Test Methods and Standards” rather than saying that the tester is universally compliant with all of these methods.
Applications of Water Absorbency Tester
The equipment can be used for textile testing applications where water penetration or water absorbency characteristics need to be evaluated. It can be used as part of laboratory quality-control and material evaluation procedures.
The test is particularly useful where the amount of water passing through a fabric is determined by measuring the weight increase of the blotter paper placed below the specimen.
For related textile laboratory testing applications, explore our Fabric Testing Equipment range. https://globetexindustries.com/product-category/fabric-testing-equipments/
The test method references AATCC Test Method 42 for evaluating water penetration of textile fabrics.
Frequently Asked Questions
What is a Water Absorbency Tester used for?
It is used to evaluate the water penetration or absorbency characteristics of textile materials by exposing a specimen to a controlled quantity of water and measuring the resulting water penetration.
How is water penetration determined?
Water penetration is determined by comparing the weight of a pre-weighed blotter paper before and after the test exposure.
How much water is used during the test?
The specified test procedure uses 500 ml of deionized water.
What is the angle of the test specimen?
The test specimen is positioned at a 45° angle below the spray head.
What type of spray head is used?
The specified arrangement uses a 2-inch diameter spray head with 25 holes.
What is the minimum sample size?
The specified minimum sample size is 7 × 13 inches (18 cm × 33 cm).
Which test methods are mentioned for this equipment?
The provided technical information mentions AATCC Test Method 42, NWSP 80.3, AAMI PB70, and ASTM D4772-97-2004.
What type of water is used?
The test procedure specifies the use of deionized water.
