BS EN ISO 2417-2016 Leather Physical and mechanical tests Determination of the static absorption of water《皮革 物理和机械试验 静止吸水率的测定》.pdf

1、BSI Standards PublicationBS EN ISO 2417:2016Leather Physical andmechanical tests Determination of the staticabsorption of waterBS EN ISO 2417:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 2417:2016. It supersedes BS EN ISO 2417:2002 which is withdrawn

2、.The UK participation in its preparation was entrusted to Technical Committee TCI/69, Footwear, leather and coated fabrics.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a

3、contract. Users are responsible for its correct application. The British Standards Institution 2016. Published by BSI Standards Limited 2016ISBN 978 0 580 89905 8 ICS 59.140.30 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under

4、the authority of the Standards Policy and Strategy Committee on 31 March 2016.Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2417 March 2016 ICS 59.140.30 Supersedes EN ISO 2417:2002English Version Leather - Physical and mechan

5、ical tests - Determination of the static absorption of water (ISO 2417:2016) Cuir - Essais physiques et mcaniques - Dtermination de labsorption statique deau (ISO 2417:2016) Leder - Physikalische und mechanische Prfungen - Bestimmung der statischen Wasseraufnahme (ISO 2417:2016) This European Standa

6、rd was approved by CEN on 23 January 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning s

7、uch 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, German). A version in any other language made by translation under the responsibility of a CEN member into its o

8、wn 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,

9、 Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORM

10、UNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2417:2016 EBS EN ISO 2417:2016EN ISO 2417:2016 (E) 2 Contents PageEuropean foreword 3 BS EN ISO 2417:2016

11、EN ISO 2417:2016 (E) 3 European Foreword This document (EN ISO 2417:2016) has been prepared by Technical Committee IULTCS “ InternationalUnion of Leather Technologists and Chemists Societies“ in collaboration with Technical CommitteeCEN/TC 289 “Leather” the secretariat of which is held by UNI. This

12、European Standard shall be given the status of a national standard, either by publication of anidentical text or by endorsement, at the latest by September 2016, and conflicting national standardsshall be withdrawn at the latest by September 2016. Attention is drawn to the possibility that some of t

13、he elements of this document may be the subject ofpatent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patentrights. This document supersedes EN ISO 2417:2002. According to the CEN-CENELEC Internal Regulations, the national standards organizations of thefol

14、lowing countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,No

15、rway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and theUnited Kingdom. Endorsement notice The text of ISO 2417:2016 has been approved by CEN as EN ISO 2417:2016 without any modification. BS EN ISO 2417:2016ISO 2417:2016(E) IULTCS/IUP 7:2016(E)Foreword .iv1 Sco

16、pe 12 Normative references . 13 Principle . 14 Apparatus 15 Sampling and sample preparation . 26 Procedure 27 Expression of results . 38 Test report 3 ISO 2016 All rights reserved iiiContents PageBS EN ISO 2417:2016ISO 2417:2016(E)ForewordISO (the International Organization for Standardization) is a

17、 worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represente

18、d on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop th

19、is document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC D

20、irectives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the dev

21、elopment of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO

22、 specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationISO 2417 was prepared by the Physical Test Commission of the Interna

23、tional Union of Leather Technologist s and Chemist s Societ ies (IUP Commission, IULTCS) in collaborat ion w ith the European Committee for Standardization (CEN) Technical Committee CEN/TC 289, Leather, the secretariat of which is held by UNI, in accordance with the Agreement on technical cooperatio

24、n between ISO and CEN (Vienna Agreement).It is based on IUP 7 originally published in J. Soc. Leather Trades Chemists 44, p. 367, (1960) and declared an official method of the IULTCS in 1961. This updated version was published in J. Soc. Leather Tech. Chem. 84, p. 323, (2000) and reconfirmed as an o

25、fficial method in March 2001. The same principle is used but the text has been updated and includes the number of test pieces to be taken.IULTCS, originally formed in 1897, is a world-wide organization of professional leather societies to further the advancement of leather science and technology. IU

26、LTCS has three Commissions, which are responsible for establishing international methods for the sampling and testing of leather. ISO recognizes IULTCS as an international standardizing body for the preparation of test methods for leather.This third edition cancels and replaces the second edition (I

27、SO 2417:2002), of which it constitutes a minor revision to align item c) of Clause 8 with ISO 2419:2012.IULTCS/IUP 7:2016(E)iv ISO 2016 All rights reservedBS EN ISO 2417:2016INTERNATIONAL STANDARD ISO 2417:2016(E) IULTCS/IUP 7:2016(E)Leather Physical and mechanical tests Determination of the static

28、absorption of water1 ScopeThis International Standard specifies a method for determining the water absorption of leather under static conditions. The method is applicable to all leather, particularly heavy leather.2 Normative referencesThe following documents, in whole or in part, are normatively re

29、ferenced in this document and are indispensable for its application. 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, physical and mechanical and fastness tests S

30、ampling locationISO 2419, Leather Physical and mechanical tests Sample preparation and conditioningISO 2420, Leather Physical and mechanical tests Determination of apparent densityISO 3696, Water for analytical laboratory use Specification and test methods3 PrincipleA test piece of known mass or vol

31、ume is immersed in water for a known period of time and the volume of water absorbed measured.4 Apparatus4.1 Glass Kubelka apparatus, as shown in Figure 1. The graduated scale shall be readable to 0,1 ml with an accuracy of 0,1 ml. The total volume of the bulb (A) and the graduated tube shall be 75

32、ml 2 ml.4.2 Rubber stopper (C), fitted with a glass rod or a nickel or stainless steel wire of diameter about 1 mm and of sufficient length to keep the test piece at the end of the cylinder (B) distant from the stopper (C).Dimensions in millimetresFigure 1 Kubelka apparatus and stopper ISO 2016 All

33、rights reserved 1BS EN ISO 2417:2016 ISO 2417:2016(E)4.3 Press knife, the inner wall of which is a right angled circular cylinder of diameter 70 mm 1 mm as specified in ISO 2419.4.4 Balance, reading to 0,001 g.4.5 Distilled or de-ionised water, conforming to the requirements of grade 3 of ISO 3696.5

34、 Sampling and sample preparation5.1 Sample in accordance with ISO 2418. From the sample, cut three test pieces by applying the press knife (4.3) to the grain surface. Condition the test pieces in accordance with ISO 2419.If there is a requirement for more than two hides or skins to be tested in one

35、batch, then only one sample need be taken from each hide or skin, provided that the overall total is not less than three test pieces.5.2 Weigh the test piece to the nearest 0,001 g or determine its volume in accordance with ISO 2420.5.3 Carry out all further operations at a temperature of 20 C 2 C o

36、r 23 C 2 C. There is no further need for humidity control.6 Procedure6.1 Ensure that the Kubelka apparatus (4.1) is clean and free of grease. Wet the interior surfaces with distilled or de-ionized water (4.5) and pour out the excess.6.2 Place the apparatus with the bulb (A) directly below the cylind

37、er (B) and fill with sufficient distilled or de- ionized water (4.5) at 20 C 2 C or 23 C 2 C to give a water level between 0 ml and 1 ml on the graduated scale. Record the scale reading.6.3 Place the test piece in the cylinder (B) and pour the water from the bulb (A) into the cylinder. Close the cyl

38、inder with the stopper (C) to prevent evaporation losses and place the apparatus on a level surface.6.4 After the test piece has been immersed for a specific time (see Note 1 to 6.5) turn the apparatus so that the water drains into the bulb. One min after drainage, note the scale reading at the wate

39、r level and calculate the volume of water absorbed.6.5 If the water absorption is required at other time intervals, turn the apparatus immediately so that the water flows back into the cylinder (B) and again covers the test piece. Repeat the operation in 6.4.NOTE 1 For most purposes, measurements af

40、ter two periods of immersion are sufficient. If possible, the periods are taken from the following, 15 min 0,2 min; 30 min 0,2 min; 60 min 0,5 min; 120 min 0,5 min; 24 h 0,1 h.NOTE 2 The periods of 1 min during which the water is being drained back are not to be considered as part of periods of imme

41、rsion which precede them, but are considered as parts of subsequent periods of immersion. For example, if the water absorptions during periods of immersion of 15 min and 60 min are to be measured on the same test piece, and the instant of first immersion is at time zero, subsequent actions will be a

42、s follows: at 15 min, begin draining, at 16 min, read off the residual volume and immediately re-immerse the test piece, at 60 min, begin draining, at 61 min, read off the residual volume.IULTCS/IUP 7:2016(E)2 ISO 2016 All rights reservedBS EN ISO 2417:2016ISO 2417:2016(E)7 Expression of resultsCalc

43、ulate the water absorption, Q, (%V/m) in millilitres per 100 g, using Formula (1); or calculate the water absorption, P, (%V/V) in millilitres per 100 ml, using Formula (2).QVm=1100 (1)PVV=12100 (2)whereV1is the volume of water absorbed in millilitres as determined in 6.4;V2is the volume of the test

44、 piece in millilitres as determined in 5.2 (see Note);m is the mass of the test piece in grams as determined in 5.2.NOTE ISO 2420 determines the volume in cubic millimetres. Thus it is divided by 1 000 to give the correct value of V2in millilitres.8 Test reportThe test report shall include the follo

45、wing:a) a reference to this International Standard, i.e. ISO 2417;b) the mean water absorption (in millilitres per 100 g, Q, or in millilitres per 100 ml, P) for each period of immersion;c) the standard atmosphere used for conditioning and testing as given in ISO 2419;d) any deviations from the meth

46、od specified in this International Standard;e) full details for identification of the sample and any deviation from ISO 2418 with respect to sampling.IULTCS/IUP 7:2016(E) ISO 2016 All rights reserved 3BS EN ISO 2417:2016ISO 2417:2016(E)IULTCS/IUP 7:2016(E) ISO 2016 All rights reservedICS 59.140.30Pr

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