ISO 12625-5 on an ADMET eXpert 5600
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ISO 12625-5 | Tissue Paper | Tension Testing

ISO 12625-5 is a tensile test used to determine the tensile strength of tissue products after being soaked with water. This test can be run in either the vertical or horizontal direction. The direction of testing will determine the recommended device and procedure for wetting the tissue prior to straining. In the vertical testing orientation, a “Finch Cup” soaking device is used. This device is essentially a water container mounted below the bottom grip that is raised into contact with the mounted specimen before testing. When testing horizontally, a small water bath is placed between the two grips. The middle of the test specimen is dipped into the bath prior to applying load.

Before conducting ISO 12625-5, it is important to read the entire specification in the relevant ISO publication.

ISO 12625-5 | Tissue Paper | Tension Testing

  1. Vertical Test Method
    1. Prepare and condition the test specimens according to the dimensions and guidance described in the test standard. An accelerated ageing process may be used.
    2. Insert the specimen into the grips by looping around the bottom horizontal rod fixture and securing the ends of the specimen in the top grip.
    3. Raise the Finch Cup soaking device to the horizontal rod and soak the test specimen for 15 seconds.
    4. Immediately after wetting the specimen, apply load to the specimen at the constant rate of grip separation defined in the standard.
    5. Continue test until specimen failure.
    6. Horizontal rod of Finch Cup soaking device should be wiped dry before each test.
  2. Horizontal Test Method
    1. Prepare and condition the test specimens according to the dimensions and guidance described in the test standard. An accelerated ageing process may be used.
    2. Insert the specimen into the grips located on either side of the water bath.
    3. Use the test machine’s controls or pre-programmed test procedure to automatically move the grips towards each other a set distance to allow the center of the test specimen to be dipped into the water bath for 15 seconds.
    4. After wetting the specimen and eliminating slack, apply load to the specimen at the constant rate of grip separation defined in the standard.
    5. Continue test until specimen failure.
Calculations:

ISO 12625-5 | Tissue Paper | Tension Testing

ISO 12625-5 Recommended Equipment
Testing System
Fixturing
  • Manual Vise Grips
  • “Finch Cup” fixture (for vertical method)
  • Water bath (for horizontal method)
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