DIN ISO 6133-2017 Rubber and plastics - Analysis of multi-peak traces obtained in determinations of tear strength and adhesion strength (ISO 6133 2015)《橡胶和塑料 测定撕裂强度和粘合强度所获得的多峰图形的分析.pdf

1、April 2017 English price group 7No 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 83.060; 83.080.01!%c“2649198www.din

2、.deDIN ISO 6133Rubber and plastics Analysis of multipeak traces obtained in determinations of tear strength and adhesion strength (ISO 6133:2015),English translation of DIN ISO 6133:2017-04Elastomere und Kunststoffe Auswertung der bei Bestimmung der Weiterreifestigkeit und der Trennfestigkeit erhalt

3、enen VielspitzenDiagramme (ISO 6133:2015),Englische bersetzung von DIN ISO 6133:2017-04Caoutchouc et plastiques Analyse des tracs multipics obtenus lors des dterminations de la rsistance au dchirementet de la force dadhrence (ISO 6133:2015),Traduction anglaise de DIN ISO 6133:2017-04SupersedesDIN IS

4、O 6133:200405www.beuth.deDocument comprises 8 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.04.17 A comma is used as the decimal marker. Contents National foreword 31 Scope . 42 Terms and definitions . 43 Procedure. 43.1 Gene

5、ral . 43.2 Method A 53.3 Method B 53.4 Method C 63.5 Method D 63.6 Method E 74 Trace-analysis report .8PageDIN ISO 6133:2017-04 2 National foreword This standard (ISO 6133:2015) has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products” (Secretariat: DSM, Malaysia), Subcommittee

6、 SC 2 “Testing and analysis”. The responsible German body involved in its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-04-34 AA “Test procedures for physical properties of rubber”. Attention is drawn to the possibility that

7、some of the elements of this document may be the subject of patent rights. DIN shall not be held responsible for identifying any or all such patent rights. Amendments This standard differs from DIN ISO 6133:2004-05 as follows: a) the term 2.2 “median” has been deleted; b) in Clause 3, minimum and ma

8、ximum of the force peak values in the trace have been included; c) the standard has been editorially revised. Previous editions DIN 53539: 1979-09 DIN ISO 6133: 2004-05 DIN ISO 6133:2017-04 3 Rubber and plastics Analysis of multi-peak traces obtained in determinations of tear strength and adhesion s

9、trength1 ScopeThis International Standard specifies five methods of calculating, after testing, the tear strength and the adhesion strength of vulcanized rubber or fabrics coated with or adhered to rubber or plastics. The results are calculated by determining the median and range of peak values from

10、 a graphical plot of force versus time recorded during the test.A trace for an adhesion strength test or tear strength test can show few or many force peaks, depending on the material under investigation. The choice of the method of calculation depends on the number of peaks in the trace.The purpose

11、 of this International Standard is to obtain more uniformity in the evaluation and presentation of test results. It is applicable only, however, when specified in another International Standard, i.e. a method of test or a specification.For other details, such as apparatus, test piece preparation, co

12、nditioning, procedure, etc., requirements given in the relevant International Standard shall apply.NOTE In certain cases, the methods of analysis given might not be adequate, for example, for peak values showing a trend with time. In cases where the minimum force values are of interest, it is possib

13、le to use the same methods of calculation as when determining from a range of peak values.2 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.2.1peakpoint at which the slope of a trace changes from positive to negativeNote 1 to entry: For example, a pe

14、ak occurs when there is an instantaneous maximum force.2.2rangedifference between the greatest and the smallest observed values of observed force peaks2.3complete tracesection of the graphical plot of force versus time between the time at which the first peak occurs and the time at which the test is

15、 terminated3 Procedure3.1 GeneralFrom the force peak values of the trace for adhesion strength or tear strength, determine the median peak force and the range of peak force values by the appropriate method specified in 3.2, 3.3, or 3.4. A DIN ISO 6133:2017-04 4 peak is taken as valid only if the for

16、ce difference between the maximum and the following minimum is larger than 2 % of the maximal force.NOTE In applying the methods described in this International Standard, it is assumed that the trace being evaluated is a time record of the variation of force during the period of test.When analysing

17、the trace with a computer, filter the signal to avoid too many small peaks. This can be done by allowing the measured force to drop a certain percentage and allowing a certain time to pass before a new peak is registered. It might be necessary to adjust these factors when testing different materials

18、 in order to obtain about the same number of peaks as can be seen on a chart recorder.3.2 Method AFor traces having less than five peaks.Determine the median, the range, the minimum and the maximum of the force peak values in the trace.If there is only one force peak, consider its value to be the me

19、dian.3.3 Method BFor traces having five to 20 peaks (see Figure 1) or where peak values are automatically computed.Y1210 %80 %10 %XKeyX timeY force1 median2 rangeFigure 1 Analysis of a trace with five to 20 peaksDIN ISO 6133:2017-04 5 Consider only the peak values of the central 80 % of the complete

20、 trace and determine the median peak force, the range, the minimum and the maximum of these values.NOTE Although it is possible to use this method for traces having more than 20 peaks, it is not recommended for manual calculations.3.4 Method CFor traces having more than 20 peaks which are clearly de

21、fined and can be readily measured (see Figure 2) and which are not automatically computed.YX1233KeyX timeY force1 median2 range3 t/2Figure 2 Analysis of a trace with more than 20 clearly defined peaksDraw a series of nine vertical lines by starting at the centre of the complete trace and drawing fou

22、r more lines on each side at equal distances of one-tenth of the length of the trace, to the nearest 1 mm. Consider only the peak value situated closest to each of the vertical lines. Determine the median peak force and the range, the minimum and the maximum of these nine values.3.5 Method DFor undu

23、lating traces (see Figure 3).DIN ISO 6133:2017-04 6 YX123KeyX timeY force1 mean2 maximum3 minimumFigure 3 Analysis of an undulating trace (range or median of no significance)Where the peaks are not clearly defined but form an undulating curve, report only the arithmetic mean value. Report this arith

24、metic mean value as the midpoint between the maximum and the minimum deflections of the trace, ignoring the initial rise at the start of the test.3.6 Method EFor traces too close for counting (see Figure 4).DIN ISO 6133:2017-04 7 YX213KeyX timeY force1 mean (midpoint)2 highest peak3 lowest peakFigur

25、e 4 Analysis of a trace with a large number of peaks (too close for counting)Where there are a large number of peaks which are clearly defined, but which are so close as to render their counting difficult, report only the arithmetic mean value. Report this arithmetic mean value as the midpoint betwe

26、en the highest and lowest peak, ignoring the initial rise at the start of the test.4 Trace-analysis reportThe trace-analysis report shall include the following information:a) reference to this International Standard, i.e. ISO 6133;b) reference to the test for which the calculation was made;c) method of calculation used (A, B, C, D, or E);d) median peak force or, for methods D and E, the mean value;e) range of peak values;f) date of the calculation.DIN ISO 6133:2017-04 8