DIN ISO 11527-2013 Building construction - Sealants - Test method for the determination of stringiness (ISO 11527 2010)《房屋建筑 密封剂 粘性测定用试验方法(ISO 11527-2010)》.pdf

1、January 2013 Translation by DIN-Sprachendienst.English price group 6No part of this translation 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

2、 91.100.50!$LY“1934154www.din.deDDIN ISO 11527Building construction Sealants Test method for the determination of stringiness (ISO 11527:2010),English translation of DIN ISO 11527:2013-01Hochbau Dichtstoffe Prfverfahren zur Bestimmung des Fadenzugs (ISO 11527:2010),Englische bersetzung von DIN ISO 1

3、1527:2013-01Construction immobilire Mastics Mthode dessai pour la dtermination du pouvoir filant (ISO 11527:2010),Traduction anglaise de DIN ISO 11527:2013-01www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.612.12 DIN ISO 11527:2013

4、-01 A comma is used as the decimal marker. Contents Page National foreword .3 National Annex NA (informative) Bibliography 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Principle 4 5 Apparatus .4 5.1 Extensometer or similar apparatus .4 5.2 Probe .4 5.3 Container 5 6 Conditioning

5、 .5 7 Preparation of test specimens .5 8 Test procedure .5 9 Expression of results 6 10 Test report 6 2 DIN ISO 11527:2013-01 National foreword This standard has been prepared by Technical Committee ISO/TC 59 “Buildings and civil engineering works” (Secretariat: SN, Norway), Subcommittee SC 8 “Seala

6、nts” (Secretariat: SAC, China). The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Working Committee NA 005-02-16 AA Fugendichtstoffe (SpA zu ISO/TC 59/SC 8 und CEN/TC 349). Attention is drawn to the possibil

7、ity that some of the elements of this document may be the subject of patent rights. DIN and/or DKE shall not be held responsible for identifying any or all such patent rights. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 6927 DIN EN ISO

8、 6927 National Annex NA (informative) Bibliography DIN EN ISO 6927, Buildings and civil engineering works Sealants Vocabulary 3 Building construction Sealants Test method for the determination of stringiness 1 Scope This International Standard specifies a method for the determination of the stringin

9、ess of a wet-applied sealant. 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) appli

10、es. ISO 6927, Building construction Jointing products Vocabulary for sealants1)3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 6927 apply. 4 Principle This method determines the stringiness of a sealant by measuring the maximum length of a strand or

11、string which can be pulled from a wet sealant sample. A probe (tip) is forced into the wet sealant sample. After a short time, the probe is removed from the sample using a constant rate of pull. An extensometer or similar apparatus is used to provide a constant rate of pull, and the maximum travel b

12、efore the “string” breaks is reported in millimetres. 5 Apparatus 5.1 Extensometer or similar apparatus Extensometer or other apparatus, e.g. pneumatic piston, which allows a grip to be pulled at a constant rate and provides a reading of the distance between the grips to the nearest millimetre. 5.2

13、Probe Tip 1 (round) according to Figure 1. Tip 2 (conical) according to Figure 2. Tip made of aluminium. 1) Under revision. 4 DIN ISO 11527:2013-01 Dimensions in millimetres Figure 1 Tip 1 Dimensions in millimetres Figure 2 Tip 2 5.3 Container Container from any suitable source, with a minimum depth

14、 of 30 mm and a minimum diameter of 30 mm. 6 Conditioning The sealant shall be shelf-aged for a minimum of 1 d from production. Prior to preparation of the specimen, the sealant, the container and the probe (tip) shall be conditioned for 6 h in the unopened container at the test temperature, e.g. (2

15、3 2) C. 7 Preparation of test specimens Fill the container with the sample and remove excess with a spatula to provide a clean, smooth surface free of bubbles. 8 Test procedure Attach the probe (tip) to the upper clamp of the extension device (e.g. the extensometer). Fix the container to the lower c

16、lamp of the extension device. Slowly raise the container with the wet sealant or move the probe downwards until the nozzle just touches the sample surface. This is the “zero” reading. Alternatively, the “zero” reading can be determined by placing a sheet of paper on the container (assuming the seala

17、nt is tooled evenly with the upper edges of the container). Raise the container with the wet sealant further or move the tip downwards at a rate of 60 mm/min until the tip of the nozzle is submerged a minimum of 10 mm into the sample. Begin the test by moving either the probe upwards or the containe

18、r with the sealant sample downwards at a rate of 700 mm/min. Stop the extension machine when the string formed between the sealant in the container and the tip breaks and report the length of the string at break (Lmax). Do not clean the tip. 5 DIN ISO 11527:2013-01 Repeat the test two more times (it

19、 is not necessary to smooth the surface and to clean the tip between tests). Then take another specimen (container with wet sealant) and repeat the test (making three new measurements), i.e. generate six measurements in total. NOTE For slow-curing sealants, sequential measurements can be carried out

20、 on the same sealant specimen. 9 Expression of results Report the individual readings and the average over the second, third, and fourth trials to the nearest millimetre. The repeatability of the value reported (the maximum difference between two independent results) should not exceed 4 mm at the 95

21、 % confidence level. If the sample surface cures before measurements are complete, results will be in error. If either the highest or lowest of the three measurements is greater than 15 % from the median, discard the data and repeat the test from the initial preparation. 10 Test report The test repo

22、rt shall include at least the following information: a) name of test laboratory, number and date of test report; b) reference to this International Standard; c) name, type (chemical family) and colour of sealant; d) batch of sealant from which the test specimens were produced, if possible; e) test temperature; f) individual and average measurement values for stringiness; g) any deviations from the specified test conditions. 6 DIN ISO 11527:2013-01