The Exchange Test Method

A-9: Breaking Strength: Grab Method

Issue Date: 30 Apr 1993

Revision Date: 09/30/2011

  1. PURPOSE AND SCOPE:

    To determine the breaking strength of a woven, non-woven or coated fabric using the grab Method. Strength of a fabric is generally considered the most obvious indicator of the service life of a fabric. Also the strength of fabric indicates its ability to resist mechanical damage due to stress of normal wear and refurbishing.
  2. PRINCIPLE:

    A continually increasing load is applied lengthwise or widthwise to the specimen, and the test is carried to fabric rupture. Values for the breaking load of the test specimen are obtained from machine scales, dials or charts.

  3. REFERENCE:

  4. APPARATUS:

  5. PROCEDURE:

  6. EVALUATION:

    Calculate the average of 3 readings of breaking strength in each direction, i.e., length and Width or warp and filling, to the nearest 0.1 of the unit chosen, i.e., pounds or grams.
  7. REPORT:

    Report the values calculated in Step 6 as the breaking force of the fabric tested in respective directions.