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The Glossary

Glossary of Nonwoven Terms

For more extensive definitions and information, please see the INDA and EDANA glossaries, located at the end of this page.

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CFM

Cubic Feet per Minute. Technically, Cubic Feet per Minute per Square Foot. Unit of measure for quantifying airflow through a filter media.

Categories: Measurement
DECITEX (Dtex)

Weight in grams of 10,000 meters of a fiber. It is one-tenth of a tex (see Tex). Prefixes such as kilo and deci are used when the numbers become too large or too small to express fineness. It measures the coarseness of a fiber.

References for this information:

Woven Textiles: Principles, Technologies, and Applications, 2012, Pages 3-34 https://www.inda.org/about-nonwovens/nonwovens-glossary-of-terms/ https://www.edana.org/glossary

Categories: Measurement
FPM

Feet per minute.

Categories: Measurement
GSM

Grams per square meter.

References for this information:

Inda

Categories: Measurement
GSY

Grams per square yard.

References for this information:

Inda

Categories: Measurement
MASS

The quantity of matter a body or article contains.

References for this information:

Edana

Categories: Measurement
MICRON

One millionth of a meter. In the context of nonwovens, the micron unit of measure is generally used to describe the width of low denier fibers, such as melt blown filaments, and the nominal filtration efficiency of a filter media. The abbreviated form is μm.

Categories: Measurement
MIL

One thousandth of an inch. Used to measure the diameter of fibers and the thickness of films.

Categories: Measurement
PARTICLE

A minute piece, part or portion of matter. It may be solid, semi-solid or liquid.

References for this information:

Inda

Categories: Measurement
PARTICLE COUNT

The quantity of particles in a given volume of fluid.

References for this information:

Inda

Categories: Measurement