DIN EN ISO 16276-2-2007 Corrosion protection of steel structures by protective paint systems - Assessment of and acceptance criteria for the adhesion cohesion (fracture strength) o.pdf

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1、August 2007DEUTSCHE NORM English price group 9No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 87.040; 91.080.10!$Hu 1

2、000 5, plus 1 for each additional 1 000 m2area or part thereofaaSubdivision into smaller inspection areas is recommended. When test panels are used, the number of panels shall be equal to the number of measurements related to inspection areas. 6.7 Interpretation of results Test results are rated by

3、comparison with the rating tables given for the cross-cut test in Clause 8 of ISO 2409:2007 and for the X-cut test in Annex A. 7 Expression of results The results of the test shall be reported as individual ratings. In the event of a re-test (see Clause 8), the original rating and the re-test result

4、 shall be reported. 8 Acceptance criteria For the acceptance of an inspection area, the appropriate criterion of the following two shall be fulfilled: For less than five tests, each test rating shall be equal to or better than the rating required by the specification. For five or more tests, 80 % of

5、 the test ratings shall be equal to or better than the rating required by the specification. For each of the remaining 20 %, only test ratings equal to the specified rating plus one rating level are acceptable. For each 1 000 m2or part thereof, only one test which has given a failure result shall be

6、 re-done, and it shall be re-done only once. 10 EN ISO 16276-2:2007 (E) 9 Test report The test report shall contain at least the following information: a) all details necessary to identify the protective paint coating tested, including, but not limited to, the batch number of the paint system, the c

7、oating thickness (measured e.g. in accordance with ISO 19840) and the time and conditions of drying/curing, including the conditions during the 24 h before the test (see 6.2); b) a reference to this part of ISO 16276 (ISO 16276-2:2007); c) all details necessary to identify the substrate; d) all deta

8、ils necessary to describe the surface preparation of the substrate; e) the test method used (cross-cut or X-cut); f) all details necessary to identify the inspection areas; g) a statement that the acceptance criteria for each inspection area were or were not met; h) the results of the test, expresse

9、d as indicated in Clause 7 (including, where available, photographic documentation showing the area tested); i) the ambient temperature, the relative humidity and the surface temperature of the coated structure during the tests (see 6.2); j) the date and time of each test; k) the name of the inspect

10、or. 11 EN ISO 16276-2:2007 (E) Annex A (normative) Classification of results of X-cut test NOTE The order of the ratings in this annex is the reverse of that published in ASTM D 3359-02. Level 0 Level 1 No peeling or removal of coating. Trace peeling or removal along cuts or at their intersection. L

11、evel 2 Level 3 Jagged removal along cuts, extending up to 1,5 mm out on either side. Jagged removal along most of the length of the cuts, extending up to 3,0 mm out on either side. Level 4 Level 5 Removal from most of the area of the X-cut under the tape. Removal of coating beyond the area of the X-

12、cut. 12 EN ISO 16276-2:2007 (E) Bibliography 1 ISO 4618:2006, Paints and varnishes Terms and definitions 2 ISO 12944-1, Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 1: General introduction 3 ISO 12944-2, Paints and varnishes Corrosion protection of s

13、teel structures by protective paint systems Part 2: Classification of environments 4 ISO 12944-3, Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 3: Design considerations 5 ISO 12944-4, Paints and varnishes Corrosion protection of steel structures by pr

14、otective paint systems Part 4: Types of surface and surface preparation 6 ISO 12944-5, Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 5: Protective paint systems 7 ISO 12944-6, Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 6: Laboratory performance test methods 8 ISO 16276-1, Corrosion protection of steel structures by protective paint systems Assessment of, and acceptance criteria for, adhesion/cohesion (fracture strength) of a coating Part 1: Pull-off testing 13 EN ISO 16276-2:2007 (E)