1、BRITISH STANDARD BS EN ISO 9073-6:2003 Incorporating Amendment No. 1 to BS ISO 9073-6:2000 (renumbers the BS ISO as BS EN ISO 9073-6:2003) Textiles Test methods for nonwovens Part 6: Absorption The European Standard EN ISO 9073-6:2003 has the status of a British Standard ICS 59.080.30 BS EN ISO 9073
2、-6:2003 This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 August 2001 BSI 14 January 2004 ISBN 0 580 36851 3 National foreword This British Stan
3、dard is the official English version of EN ISO 9073-6:2003. It is identical with ISO 9073-6:2000. The UK participation in its preparation was entrusted to Technical Committee TCI/24, Physical testing of textiles, which has the responsibility to: A list of organizations represented on this committee
4、can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using t
5、he “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from
6、legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK
7、. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 9, the Annex ZA page, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates
8、when the document was last issued. Amendments issued since publication Amd. No. Date Comments 14899 14 January 2004 Implementation of the European StandardEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO90736 March2003 ICS59.080.30 Englishversion TextilesTestmethodsfornonwovensPart6:Absorption(I
9、SO 90736:2000) TextilesMthodesdessaipournontisssPartie6: Absorption(ISO90736:2000) TextilienPrfverfahrenfrVliesstoffeTeil6:Absorption (ISO90736:2000) ThisEuropeanStandardwasapprovedbyCENon9January2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivin
10、gthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyoth
11、erlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxemb
12、ourg,Malta,Netherlands,Norway,Portugal,SlovakRepublic,Spain,Sweden,Switzerland and UnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved w
13、orldwideforCENnationalMembers. Ref.No.ENISO90736:2003EForeword ThetextofISO90736:2000hasbeenpreparedbyTechnicalCommitteeISO/TC38“Textiles“ oftheInternationalOrganizationforStandardization(ISO)andhasbeentakenoverasENISO 90736:2003byTechnicalCommitteeCEN/TC248“Textilesandtextileproducts“,the secretari
14、atofwhichisheldbyBSI. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationof anidenticaltextorbyendorsement,atthelatestbySeptember2003,andconflictingnational standardsshallbewithdrawnatthelatestbySeptember2003. AccordingtotheCEN/CENELECInternalRegulations,thenationalstand
15、ardsorganizationsof thefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Czech Republic,Denmark,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy, Luxembourg,Malta,Netherlands,Norway,Portugal,SlovakRepublic,Spain,Sweden, SwitzerlandandtheUnitedKingdom. Endorsementno
16、tice ThetextofISO90736:2000hasbeenapprovedbyCENasENISO90736:2003withoutany modifications. NOTENormativereferencestoInternationalStandardsarelistedinAnnexZA(normative). ENISO90736:2003Reference number ISO 9073-6:2000(E) INTERNATIONAL STANDARD ISO 9073-6 First edition 2000-12-01 Textiles Test methods
17、for nonwovens Part 6: Absorption Textiles Mthodes dessai pour nontisss Partie 6: Absorption ENISO90736:2003ii ENISO90736:2003 iii Contents Page Foreword.iv 1 Scope 1 2 Normative references 1 3 Terms and definitions .1 4 Liquid absorbency time 2 5 Liquid absorptive capacity .4 6 Liquid wicking rate 6
18、 ENISO90736:2003iv Foreword ISO (the International Organization for Standardization) is a 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 su
19、bject for which a technical committee has been established has the right to be represented 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 (
20、IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inter
21、national Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 9073 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Int
22、ernational Standard ISO 9073-6 was prepared by Technical Committee ISO/TC 38, Textiles. ISO 9073 consists of the following parts, under the general title Textiles Test methods for nonwovens: Part 1: Determination of mass per unit area Part 2: Determination of thickness Part 3: Determination of tensi
23、le strength and elongation Part 4: Determination of tear resistance Part 6: Absorption Part 7: Determination of bending length Part 8: Determination of liquid strike-through time (simulated urine) Part 9: Determination of drape coefficient Part 10: Linting (dry state) Part 11: Run-off tests Part 12:
24、 Demand absorbency ENISO90736:2003 1 Textiles Test methods for nonwovens Part 6: Absorption 1 Scope This part of ISO 9073 describes methods for the evaluation of some aspects of the behaviour of nonwoven fabrics in the presence of liquids. In particular: the liquid absorbency time; the liquid absorp
25、tive capacity; the liquid wicking rate (capillarity). It should be noted that these different aspects of absorbency may relate to various end uses of the tested products. The tests are not applicable to any fabric containing super absorbent materials. 2 Normative references The following normative d
26、ocuments contain provisions which, through reference in this text, constitute provisions of this part of ISO 9073. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 9073 are encouraged to
27、investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 139:1973, T
28、extiles Standard atmospheres for conditioning and testing. ISO 186:1994, Paper and board Sampling to determine average quality. ISO 565:1990, Test sieves Metal wire cloth, perforated metal plate and electroformed sheet Nominal sizes of openings. 3 Terms and definitions For the purposes of this part
29、of ISO 9073, the following terms and definitions apply. 3.1 liquid absorbency time time required for a sample of absorbent material to become completely wetted by the test liquid, i.e. to imbibe a liquid into its interior structure under specified conditions ENISO90736:20032 3.2 liquid absorptive ca
30、pacity LAC mass of liquid that is absorbed by unit mass of the test absorbent expressed as a percentage of the mass of the test absorbent, under specified conditions and after a specified time 3.3 liquid wicking rate measure of the capillarity of the test material, i.e. the rate at which the liquid
31、is transported into the fabric by capillary action 4 Liquid absorbency time 4.1 Principle The liquid absorbency time test measures the time required for the complete wetting of a specimen strip loosely rolled into a cylindrical wire basket and dropped on to the surface of the liquid from a height of
32、 25 mm. In this method the liquid can come into contact with all surfaces of the sample. 4.2 Apparatus 4.2.1 Cylindrical wire basket, open at one end, with height (80 1) mm and diameter (50 1) mm, and constructed of suitable gauge wire to obtain a mass of (3 0,1) g, e.g. 0,5 mm diameter stainless st
33、eel wire. The mesh shall have openings approximately 20 mm square and be soldered in order to create a firm structure. Extra solder may be added to adjust the mass or the mass may be adjusted by partially doubling the rings, these extra lengths being distributed symmetrically in order to maintain th
34、e balance of the basket (see Figure1). 4.2.2 Container for liquid, of volume large enough to hold the submerged basket lying on its side. 4.2.3 Stopwatch. 4.2.4 Specified liquid, agreed-upon and specified and also identified in the test report. 4.3 Sampling Carry out sampling in accordance with ISO
35、186. 4.4 Preparation and conditioning of test pieces Cut five test pieces measuring (76 1) mm in the machining direction and of sufficient length in the cross direction so that they each weigh (5 0,1) g. These strips shall be equally spaced across the fabric sample. When there is a difference in the
36、 surface characteristics of the fabric, it may be necessary to duplicate the test procedure so that each side of the fabric faces the internal surface of the basket. Condition the test pieces in accordance with ISO 139. The liquid shall be left long enough to equilibrate with the conditioning atmosp
37、here. ENISO90736:2003 3 Dimensions in millimetres Figure 1 Cylindrical wire basket 4.5 Procedure Carry out the test in the standard atmosphere for testing (see ISO 139) a) Loosely roll a test piece starting from the short end and place it in the basket (4.2.1). b) Drop the basket, on its side, from
38、a height of (25 1) mm from the liquid surface into the container (4.2.2) of the specified liquid (4.2.4) and start the stopwatch (4.2.3). c) Record the time taken for the basket to completely sink below the surface of the liquid. Repeat with the other four test pieces. Use fresh conditioned test liq
39、uid for each set of five test pieces. ENISO90736:20034 4.6 Expression of results Calculate the average liquid absorbency time, in seconds, and the standard deviation. 4.7 Test report The test report shall include the following information: a) reference to this part of ISO 9073, i.e ISO 9073-6; b) id
40、entification of the test pieces; c) dimensions of the test pieces; d) identification of the liquid; e) average liquid absorbency time and its standard deviation; f) any deviation(s) from the standard procedure. 5 Liquid absorptive capacity 5.1 Principle The absorptive capacity method provides a meas
41、ure of the amount of liquid held within a test piece after specified times of immersion and drainage. This method measures the liquid stored within the test piece itself after drainage has occurred vertically. For practical reasons, the drainage time is quite short. This is especially important if v
42、ery volatile liquids are used, in which case an assessment of evaporation loss may be necessary. 5.2 Apparatus 5.2.1 Wire gauze test piece support, of at least 120 mm 120 mm, with a metal frame. The gauze shall be made from a stainless steel test sieve of 2 mm nominal mesh size in accordance with IS
43、O 565. 5.2.2 Clips, to hold the test piece on the gauze. 5.2.3 Dish, for containing the wire gauze with the test piece attached, of sufficient volume to allow a test liquid depth of 20 mm. 5.2.4 Suitable weighing glass, with cover. 5.2.5 Balance, capable of determining mass to an accuracy of 0,01 g.
44、 5.2.6 Stopwatch. 5.2.7 Specified liquid, agreed-upon and specified and also identified in the test report. 5.3 Sampling Carry out sampling in accordance with ISO 186. ENISO90736:2003 5 5.4 Preparation and conditioning of test pieces Cut five test pieces of (100 1) mm (100 1) mm. If an individual te
45、st piece weighs less than 1 g, lay test pieces on top of each other to give each of the piles a total stacked mass of at least 1 g. Condition the test pieces in accordance with ISO 139. The liquid shall be left long enough to equilibrate with the conditioning atmosphere. 5.5 Procedure Carry out the
46、test in the standard atmosphere for testing (see ISO 139). a) Weigh the test piece (or pile) to an accuracy of 0,01 g, using the balance (5.2.5) and the weighing glass with cover (5.2.4). b) Place the test piece (or pile) on the stainless steel gauze (5.2.1), fastening it (them) at the edges with th
47、e clips (5.2.2). c) Place the gauze with the attached test piece(s) approximately 20 mm below the liquid surface in the dish (5.2.3) and start the stopwatch (5.2.6). Introduce the gauze obliquely in order to avoid trapping air bubbles. d) After (60 1) s remove the gauze test piece support and test p
48、iece (or pile). e) Remove all clips except one at one corner. f) Hang freely and vertically to drain for (120 3) s. g) Take the test piece (or pile) off the gauze without squeezing the liquid from it, place the test piece in the weighing glass with cover and weigh. Repeat b) to g) for the other four test pieces. Use fresh co
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