ДСТУ Б EN 13897:2013
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1 2 З? 4 5 5.1 5.2 5.3 5.4 5.5 5.6 6 7 8 9 10 1 Scope 1
2 Normative references 1
3 Terms and definitions 2
4 Principle 2
5 Apparatus 2
5.1 Tensioning device 2
5.2 Dial gauge 3
5.3 Conditioning space 3
5.4 Vacuum pad 3
5.5 Vacuum pump 3
5.6 Pressure gauge 3
6 Sampling 4
7 Preparation of test specimens 4
8 Procedure 4
9 Expression of results 5
10 Test report 5
EN 13897:2004 - - - -
BITUMEN, PLASTIC AND RUBBER SHEETS FOR ROOF WATERPROOFING -Determination of watertightness after stretching at low temperature
1 2 EN 13416, 1 Scope
This document specifies a test for determining the ability of flexible sheets to remain watertight after being stretched at low temperature.
This standard is applicable only for mechanically fastened single layer waterproofing.
This standard has been drafted for application in roofing, but it may also be used in other areas where it is relevant.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (Including any amendments) applies.
EN 13416, Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Rules for sampling.
1 4 5 5.1 For the purpose of this document, the terms and definitions given in the European Standards on product specifications for waterproofing sheets apply.
4 Principle
The test specimen is stretched at low temperature to a given elongation (percentage). Afterwards the specimen is tested at room temperature in the stretched state for watertightness by means of a vacuum pad and soap solution.
5 Apparatus
The apparatus consists of the parts given in 5.1 to 5.6.
5.1 Tensioning device
A tensioning device (example shown in Figure 1) is equipped with two grips to hold one test specimen. One grip can be moved in the plane of the test specimen in order to induce elongation and fixed in position at a predetermined value. The test specimen shall be strained along its entire width without sliding in the grips.
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1 - Figure 1 - Device for tensioning of test specimen 5.2 5.3 5.4 5.2 Dial gauge
The dial gauge for recording the state of tensioning shall have an accuracy of at least 0,1mm.
5.3 Conditioning space
A conditioning space maintained at (-10 5.4 Vacuum pad
The vacuum pad for checking watertightness after stretching as shown in Figure 2 can be made of e.g. 5 mm thick acryl ate plastic.
1 - 2 - З? -
5.5 5.6 5.5 Vacuum pump
The vacuum pump shall maintain a negative pressure of (15 5.6 Pressure gauge
A pressure gauge with an accuracy of 0,2 kPa and mounted on the vacuum pad.
6 7 8 6 Sampling
Test samples shall be taken in accordance with EN 13416.
7 Preparation of test specimens
Two test specimens cut in the direction of the manufacture of tine material, and two test specimens cut perpendicularly to this shall be taken from the test piece. The test specimens shall be taken evenly spaced over the test piece and at least 100 mm from edges. The size of the test specimens shall be approximately.
200 mm x 420 mm.
The test specimens shall be stored for at least 24 h at (23 8 Procedure
Each test specimen is installed in the tensioning device, with a negligible strain, so that the clear gauge length between the grips is (300 The temperature of the test specimen and the tensioning device shall be (23 After installation the tensioning device with the test specimen is moved to the conditioning space at (-10 Keeping the tensioning device with the test specimen in the conditioning space, the straining is then carried out at a separation speed of the grips of (15 Table 1 - Stages of elongation 9 10 а?) Ь?) с?) d) е?) f) The tensioning device is then moved from the conditioning space to a room at (23 Within 5 min to 10 min the test specimen is examined for a possible leakage by coating the upper side with a soap solution and by attaching the vacuum pad to the top, applying a pressure difference to the underside of the test specimen of (15 Tests with a breakage of the test specimen close to the grips of the tensioning device shall not be taken into account. In such case the test shall be repeated.
9 Expression of results
The watertightness following stretching at low temperature is expressed as the elongation, in percent, which has not caused leakage of the flexible sheet for roofing in four out of four test specimens.
10 Test report
The test report shall include at least the following information.
a) all details necessary to identify the product tested;
b) reference to this European Standard (EN 13897) and any deviations from it;
c) information about sampling in accordance with clause 6;
d) information about preparation of test specimens in accordance with clause 7;
e) information about test procedure in accordance with clause 8;
f) test results:
g) date of the test. **********