EN
ZHTest Method: SATRA TM121
Shrinkage of insole materials on repeated wetting and drying
March 1998
SCOPE
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.
PRINCIPLE
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.
REFERENCES
This Test Method does not reference any additional Standards or Test Methods.
HISTORY
First issued June 1966 (draft). Revised March 1998.
AVAILABILITY
This test method is available to members and non-members.
PRICE (ex. VAT)
This price is for a printed copy of the Test Method.
- Members: £75
- Non-members: £215