EN 1939-2003 pdf download.Self adhesive tapes-Determination of peel adhesion properties.
This EN 1939 specifies a series of methods for the determination of peel adhesion properties of self adhesives tapes.
Annexes A and B specify further variations in the testing protocol according to specific conditions. This European Standard contains:
— Method 1: Self adhesive tapes — Measurement of peel adhesion from stainless steel at an angle of 1800;
– – Method 2: Self adhesive tapes — Measurement of peel adhesion from its own backing at an angle of 1800:
Method 3: Self adhesive tapes — Measurement of peel adhesion of double sided and transfer tapes at an angle 180°;
Method 4: Sell adhesive tapes — Measurement of adhesion of the liner to an adhesive tape at an angle of
180°.
Together with
— Annex A Self adhesive tapes — Measurement of peel adhesion from a surface at low temperature;
— Annex B Self adhesive tapes — Measurement of peel adhesion from a surface at an angle of 90°.
A guide to the use of these methods and annexes is given in Table 1.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments).
EN 10088-2, Stainless steels Part 2: Technical delivery conditions for sheet/plate and strip for general purposes. EN 12481:2000, Self adhesive tapes – Terminology.
3 Terms and definitions
For the purposes of this European Standard the terms and definitions given in EN 12481:2000 and the following terms and definitions apply.
3.1
peel adhesion
force required to peel a strip of adhesive tape from a specified substrate at a specified angle and speed
3.2
open side (adhesive)
surface of the adhesive on a double sided tape which is exposed on normal unwinding or separation of the first liner
3.3
closed side (adhesive)
surface of the adhesive on a double sided tape which normally remains in contact with the release liner on normal unwinding or separation of the first liner
3.4
transfer tape
adhesive tape having two available pressure sensitive surfaces without the need for a carrier and with a release liner separating the adhesive surfaces, The adhesive may contain reinforcing material
4 Significance and use
These test methods are tools for quality control use. Given specific sell adhesive tape and a requirement in terms of the minimum or maximum value expected for this tape, the data from the test can be used in conjunction with acceptance criteria.
Test methods 1, 2, 3, and Annexes A and B can show the relative bond strength of a given tape to one or more surfaces (material and texture) as compared to the standard stainless steel panel. Substitution of representative samples of materials in question for the standard steel panel would suffice to do this. Test methods 1, 2, 3. and Annexes A and B cannot be used to compare two self adhesive tapes of the same type but of different manufacture for their ability to adhere to a surface. This is because the measured peel force is not normalised for a fixed area of stress. The area under stress varies with backing stiffness and adhesive rheology (firmness). Two different tapes seldom agree in these properties.
Test method 4 can show the amount of force required to remove a liner that covers the adhesive side of a tape at a specified peel rate. The force will be different at other peel rates.
These test methods may not provide design information as there is usually no direct relationship between peel adhesion and any functional requirement.EN 1939-2003 pdf download.