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Test Method: SATRA TM121

Shrinkage of insole materials on repeated wetting and drying

March 1998


The test is intended to be a guide to the amount of shrinkage that may occur in wear as a result of repeated wetting by perspiration and drying. It does not, however, cover the effects of perspiration ingredients other than water, which are likely in practice to increase the amount of shrinkage. The method is mainly applicable to insole leathers but can be used with any type of footwear insole material.


Test specimens cut from the insole material are soaked in water, conditioned and then oven dried over ten 24 hour cycles. The linear shrinkage between two reference marks made on the test specimens is then determined and calculated as a percentage of the original distance between the reference marks.


This Test Method does not reference any additional Standards or Test Methods.


First issued June 1966 (draft). Revised March 1998.


This test method is available to members and non-members.


This price is for a printed copy of the Test Method.

  • Members: £75
  • Non-members: £215



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