BS EN 12814-8:2001 – This is an uncontrolled copy. Ensure use of the most current version of this document by searching British Standards Online at bsonline.techindex.co.uk
1 Scope
This European Standard provides the requirements for the tests made on welded thermoplastics semi-finished products.
The selection of the appropriate test method(s) should be made in accordance with the particular type and application of welded product.
The test results depend on the conditions of manufacture for the test specimen and on the test conditions. They can therefore only be related to the behaviour of the product or can only be used for designing a structure, if the test conditions can be related to the service conditions.
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 12814-1, Testing of welded joints of thermoplastics semi-finished products – Part 1 : Bend test.
EN 12814-2, Testing of welded joints of thermoplastics semi-finished products – Part 2 : Tensile test.
EN 12814-3, Testing of welded joints of thermoplastics semi-finished products – Part 3 : Tensile creep test.
EN 12814-4, Testing of welded joints of thermoplastics semi-finished products – Part 4 : Peel test.
EN 12814-5, Testing of welded joints of thermoplastics semi-finished products – Part 5 : Macroscopic examination.
EN 12814-6, Testing of welded joints of thermoplastics semi-finished products – Part 6 : Low temperature tensile test.
prEN 12814-7, Testing of welded joints of thermoplastics semi-finished products – Part 7 : Tensile test with waisted test specimens.
3 Symbols and abbreviations
HT Heated tool welding
HG Hot gas welding
EX Extrusion welding (continuous)
4 Materials and properties
This standard is applicable to the thermoplastic materials listed in Table 1.
5 Destructive test methods
The dimensions and the methods for sampling and preparing test specimens, together with the conditions for carrying out destructive tests are given in the standards shown in Table 2.
6 Requirements
The semi-finished products used for the welded joints shall comply with the relevant standards.
The welded joints shall meet the requirements specified hereafter.
6.1 Bend test
6.1.1 Bend angle
The individual measure value of the bend angle shall be greater than or equal to the values given in Figures 1 to 6.
For PVC-C, the requirements shall be agreed between the contracting parties.
BS EN 12814-8:2001 – This is an uncontrolled copy. Ensure use of the most current version of this document by searching British Standards Online at bsonline.techindex.co.uk