DIN EN ISO 5403-1-2012 Leather - Determination of water resistance of flexible leather - Part 1 Repeated linear compression (penetrometer) (ISO 5403-1 2011) German version EN ISO 5.pdf

1、March 2012 Translation by DIN-Sprachendienst.English price group 9No 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 5

2、9.140.30!$zh“1875869www.din.deDDIN EN ISO 5403-1Leather Determination of water resistance of flexible leather Part 1: Repeated linear compression (penetrometer) (ISO 5403-1:2011)English translation of DIN EN ISO 5403-1:2012-03Leder Bestimmung der Wasserbestndigkeit von flexiblem Leder Teil 1: Penetr

3、ometerverfahren (ISO 5403-1:2011)Englische bersetzung von DIN EN ISO 5403-1:2012-03Cuir Dtermination de limpermabilit leau des cuirs souples Partie 1: Compression linaire rpte (pntromtre) (ISO 5403-1:2011)Traduction anglaise de DIN EN ISO 5403-1:2012-03SupersedesDIN EN ISO 5403:2003-10www.beuth.deDo

4、cument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1202.12 DIN EN ISO 5403-1:2012-03 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 289 “Leather” (Secretariat: UNI, Italy) in

5、 collaboration with the International Union of Leather Technologists and Chemists Societies (IULTCS). The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-05-51 AA Anforderungen und physikalis

6、che Prfverfahren fr Leder und seine Ausgangsprodukte. DIN EN ISO 5403 consists of the following parts, under the general title Leather Determination of water resistance of flexible leather: Part 1: Repeated linear compression (penetrometer) Part 2: Repeated angular compression (Maeser) The DIN Stand

7、ards corresponding to the International Standards referred to in this document are as follows: ISO 2418 DIN EN ISO 2418 ISO 2419 DIN EN ISO 2419 ISO 3696:1987 DIN ISO 3696:1991-06 ISO 5403-2 DIN EN ISO 5403-2 Amendments This standard differs from DIN EN ISO 5403:2003-10 as follows: a) DIN EN ISO 540

8、3 is published as DIN EN ISO 5403-1 Repeated linear compression (penetrometer); the second part is published under the title Repeated angular compression (Maeser) and contains a new method. Previous editions DIN 53338: 1976-04 DIN EN ISO 5403: 2003-10 National Annex NA (informative) Bibliography DIN

9、 EN ISO 2418, Leather Chemical, physical and mechanical and fastness tests Sampling location DIN EN ISO 2419, Leather Physical and mechanical tests Sample preparation and conditioning DIN EN ISO 5402, Leather Physical and mechanical tests Determination of flex resistance by flexometer method DIN EN

10、ISO 5403-2, Leather Determination of water resistance of flexible leather Part 2: Repeated angular compression (Maeser) DIN ISO 3696:1991-06, Water for analytical laboratory use Specification and test methods EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 5403-1 December 2011 ICS 61.060; 5

11、9.140.30 Supersedes EN ISO 5403:2002English Version Leather - Determination of water resistance of flexible leather - Part 1: Repeated linear compression (penetrometer) Cuir - Dtermination de limpermabilit leau des cuirs souples - Partie 1: Compression linaire rpte (pntromtre) (ISO 5403-1:2011) Lede

12、r - Bestimmung der Wasserbestndigkeit von flexiblem Leder - Teil 1: Penetrometerverfahren This European Standard was approved by CEN on 14 December 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the sta

13、tus of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, G

14、erman). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croa

15、tia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDI

16、ZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 5403-1:2011: E(ISO 5403-1:2011) (ISO 5403-1:2011) Co

17、ntents DIN EN ISO 5403-1:2012-03 EN ISO 5403-1:2011 (E) 2 Page Foreword 3 1 Scope 4 2 Normative references 4 3 Principle 4 4 Apparatus, reagents and materials 4 5 Sampling and sample preparation .5 6 Procedure .6 6.1 Determination of stiffness and test amplitude .6 6.2 Determination of penetration t

18、ime .7 6.3 Determination of water absorption 7 6.4 Determination of water penetration .7 7 Expression of results 8 7.1 Penetration time .8 7.2 Water absorption .8 7.3 Water transmission .8 8 Test report 8 Annex A (informative) Sources of apparatus .9 Bibliography 10 Foreword This document (EN ISO 54

19、03-1:2011) has been prepared by Technical Committee CEN/TC 289 “Leather”, the secretariat of which is held by UNI, in collaboration with the International Union of Leather Technologists and Chemists Societies. This European Standard shall be given the status of a national standard, either by publica

20、tion of an identical text or by endorsement, at the latest by June 2012, and conflicting national standards shall be withdrawn at the latest by June 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall no

21、t be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 5403:2002. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria

22、, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN ISO 5403-1:2012

23、-03 EN ISO 5403-1:2011 (E) 3 1 Scope This part of ISO 5403 specifies a method for determining the dynamic water resistance of leather by means of repeated linear compression. It is applicable to all flexible leathers but is particularly suitable for leathers intended for footwear applications. 2 Nor

24、mative 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. ISO 2418, Leather Chemical, phy

25、sical and mechanical and fastness tests Sampling location ISO 2419, Leather Physical and mechanical tests Sample preparation and conditioning ISO 3696:1987, Water for analytical laboratory use Specification and test methods 3 Principle A test piece is formed into the shape of a trough and flexed whi

26、le partially immersed in water. The time taken for water to penetrate through the test piece is measured. The method also allows for the percentage mass of the water absorbed and the mass of the water transmitted through the test piece to be determined. NOTE This test method uses compression-type fl

27、exing, whereas the test method of ISO 5403-2 for water resistance imparts folding-type flexing on the leather specimens. Given the two completely different flexing actions, it is not possible to compare the results obtained from the two test methods. 4 Apparatus, reagents and materials Usual laborat

28、ory apparatus is required and, in particular, the following. 4.1 Test machine, including the parts described in 4.1.1 to 4.1.3. (See also Annex A.) 4.1.1 One or more pairs of cylinders, 30,0 mm 0,5 mm in diameter, made of inert rigid material, mounted with their axes horizontal and co-axial. One cyl

29、inder shall be fixed and the other moveable along the direction of its axis such that the maximum separation of the cylinders is 40,0 mm 0,5 mm. DIN EN ISO 5403-1:2012-03 EN ISO 5403-1:2011 (E) 4 4.1.2 Electric motor, which drives the moveable cylinder backwards and forwards along its axis with a cr

30、ank motion of 50 cycles/min 5 cycles/min and an amplitude of 1,0 mm 0,1 mm, 1,50 mm 0,15 mm, 2,0 mm 0,2 mm or 3,0 mm 0,3 mm about its mean position. NOTE The four amplitudes of the crank motion are such that the test piece is compressed by 5 %, 7,5 %, 10 % or 15 % respectively when the cylinders app

31、roach one another. 4.1.3 Tank, made from non-corroding material, holding distilled or deionized water, in which the test piece can be partially immersed. The test machine may also include an electrical circuit that indicates when water has penetrated through the test piece. 4.2 Ring-shaped clamps, w

32、ith internal diameter adjustable between 30 mm and 40 mm. 4.3 Press knife, the inner wall of which is a rectangle of 60 mm 1 mm 75 mm 1 mm, conforming to the requirements of ISO 2419. 4.4 Distilled or deionized water, of grade 3 in accordance with ISO 3696:1987. 4.5 Balance, weighing to 0,001 g. 4.6

33、 Clock, reading to 1 s. 4.7 Abrasive paper, grade P180, as defined in the P-series grit-size standard published by the Federation of European Producers of Abrasive Products, cut into rectangles of 65 mm 5 mm 45 mm 5 mm, fixed to a flat, rigid base of the same size and weighted to give a total mass o

34、f 1,0 kg 0,1 kg. A fresh piece of abrasive paper shall be used for each test. 4.8 Absorbent cloth, cut into rectangles of 120 mm 5 mm 40 mm 5 mm, machine washed prior to first use following the cycle recommended by the cloth manufacturer. A suitable cloth is terry towelling (frott) in 100 % cotton a

35、nd weighing about 300 g/m2. The absorbency of this material might not be optimal when new, and therefore the cloths shall be washed before the first use. 4.9 Auxiliary apparatus, to determine the stiffness of the test piece, consisting of one pair of cylinders of 30,0 mm 0,5 mm in diameter mounted w

36、ith their axes horizontal and co-axial, a means of moving the cylinders together, a means of measuring the reduction in distance between the cylinders, to the nearest 0,1 mm, and a means of measuring the force exerted along the axes of the cylinder to the nearest 5 N. 5 Sampling and sample preparati

37、on 5.1 Sample in accordance with ISO 2418. Cut four test pieces by applying the press knife (4.3) to the grain (or to the outer surface when worn). Cut two test pieces with the longer side parallel to the backbone and two test pieces with the longer side perpendicular to the backbone. If there is a

38、requirement for more than two hides or skins to be tested in one batch, then only one test piece in each direction need be taken from each hide or skin, provided that the overall total is not less than two test pieces in each direction. 5.2 Prepare the four test pieces using the following method. Li

39、ghtly buff the grain (or the outer surface when worn) by placing the test-piece grain (or the outer surface when worn) upwards on a flat surface. Place the weighted abrasive paper (4.7) on the test piece and move the abrasive paper ten times backwards and forwards along the full length of the test p

40、iece without applying any more downward force than is applied by the weighted abrasive. NOTE In some situations, it might be more appropriate to flex a sample for 20 000 cycles using the method and apparatus specified in ISO 5402-1. DIN EN ISO 5403-1:2012-03 EN ISO 5403-1:2011 (E) 5 Many leathers ha

41、ve a surface coat on the grain or on the outer surface when worn. This surface coat greatly increases the water resistance of the leather. If microcracks develop rapidly in this coat as a result of flexing during wear or the coat is damaged by abrasion, then measurements made on the leather as recei

42、ved can be misleading. The abrasion and flexing treatments described above are intended to simulate the abrasion which the leather would receive while being worn and the test piece should therefore be abraded or flexed before the test. The purpose of this abrasion is not to remove the surface coat b

43、ut merely to scratch it lightly. 5.3 Store the test specimens in a standard controlled environment in accordance with to ISO 2419 for at least 48 h. It is not necessary to carry out the test in this atmosphere. 5.4 If the water transmitted through the test piece is to be measured, condition a rectan

44、gle of absorbent cloth (4.8) in accordance with 5.3, weigh it to the nearest 0,001 g and record the mass. 5.5 If the water absorption of the test piece is to be measured, weigh the test piece to the nearest 0,001 g and record the mass. 6 Procedure 6.1 Determination of stiffness and test amplitude NO

45、TE The stiffness and test amplitude are not determined if the test amplitude is otherwise specified. 6.1.1 Adjust the auxiliary apparatus (4.9) so that the cylinders are at the maximum separation. 6.1.2 Bend the test piece along the longer edges, with the grain, or outer surface when worn, facing ou

46、twards to form a trough and with the shorter edges parallel and at the same level. Attach the longer edges to the cylinders by means of the ring clamps (4.2) with the same length of test piece (about 10 mm) overlapping each cylinder and with the test piece under sufficient tension to remove folds. T

47、he inner edges of the two ring clamps should lie as nearly as possible in the planes of the adjacent ends of the cylinders so that the length of the trough is the same as the distance between the cylinders. If the test piece and cylinders are to be transferred to the main test machine (4.1), ensure

48、that the test piece forms a seal against the cylinder. 6.1.3 Move the cylinders 2,0 mm 0,1 mm closer to each other evenly over a period of 5 s 2 s and immediately return the cylinders to their original position over a period of 5 s 2 s. 6.1.4 Repeat the operations in 6.1.3 and record the force acting on the cylinders to the nearest 5 N. 6.1.5 Repeat the operation in 6.1.3 but this time moving the cylinders 4,0 mm 0,2 mm closer to each other an