INDA Testing Standards for Nonwovens

The International Nonwovens and Disposables Association (INDA) brings companies in the nonwoven and engineered fabrics industry together to resolve issues facing businesses within this market. INDA provides training courses, conferences, expositions, market data, consultancy and testing methods to help companies grow.

What Is INDA IST 90.3?

INDA IST 90.3, now globally recognized as NWSP 90.3, refers to the Handle-O-Meter Stiffness of Nonwoven Fabrics test. This method evaluates the “hand” of nonwoven materials, which is the combination of resistance from surface friction and flexural rigidity. It’s a critical test that measures the softness or stiffness of the material, which is essential for quality control and performance benchmarking.

Key Benefits of testing to meet INDA IST 90.3:

• Ensures quality of nonwoven fabrics.
• Facilitates performance benchmarking for materials.
• Helps in substantiating company claims about product quality.
• Builds end-user confidence in the products.
• Supports regulatory compliance with industry standards. 

INDA IST 90.3 Test Method

The Thwing-Albert Handle-O-Meter is an advanced instrument used to measure the stiffness or softness of nonwoven materials. Originally designed for nonwovens, this machine also provides valuable metrics for other sheeted materials, including tissue, toweling, plastic film, and textiles. The standard test procedure involves passing material through a restricted slot using a blade, which quantifies the stiffness or softness of the material.

Contact Thwing-Albert for Your Nonwovens Testing Needs 

Thwing-Albert is a leading manufacturer of materials testing instruments, offering equipment designed to meet the standards for nonwoven material testing. In addition to nonwoven testing, we provide a range of testing solutions for various materials such as textiles, films, and more. With our reliable and accurate products, Thwing-Albert is your trusted partner for materials testing.

We are committed to delivering exceptional product quality, accuracy, and unmatched customer support to ensure your business meets the highest standards of performance and satisfaction.  Contact us today to get started.