The Exchange Test Method

LABORATORY TEST METHOD NO. H-7: WINDPROOFNESS OF UMBRELLAS

  1. PURPOSE:

    To determine the ability of umbrellas to withstand being turned inside out in high wind conditions without suffering damage to spreaders or other parts.
  2. PRINCIPLE:

    Umbrellas are forcefully turned inside out three times. This simulates high wind conditions. Damage is assessed after each of three forceful slings.
  3. APPARATUS AND MATERIALS:

    Three samples of each style umbrella to be tested.
  4. PROCEDURE:

  5. EVALUATION:

    Carefully examine each sample for any damage. Examples of damage are as follows:
  6. REPORT :

    Indicate type of damage incurred and number of samples affected.