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Standard: |
ISO |
Method: |
ISO 12625-5 |
Title: |
Determination of wet tensile strength |
A test piece of tissue paper or tissue product of given dimensions, soaked in water for a given period of time under specified conditions, is stretched (elongated) to break at a constant rate of elongation, using a tensile-strength-testing apparatus that measures and records the tensile force as a function of the elongation of the test piece.
The test can be carried out by a vertical or a horizontal tensile-strength tester.
In order to wet the test pieces for a vertical tensile-strength tester, a device, called a Finch Cup, which is held to the lower clamp, is used; while for a horizontal tensile-strength tester, a soaking cup is inserted between the clamps.
From the wet tensile strength and the tensile strength of the same sample in the dry conditioned state, the wet-tensile-strength retention can be calculated.
IPS doesn’t recommend Finch cup testing for wetting, especially for tissue products; IPS recommends using ISO 12625-4 with IPS method for wetting. Curing of raw materials is done when requested by the customer for an additional fee. Wet Tensile Strength Retention is done when requested by the customer for an additional fee.
Please note:
SGS-IPS cannot sell or otherwise provide standards, specifications, or test procedures to third parties.