1、BRITISH STANDARD BS EN ISO 11721-2:2003 Textiles Determination of the resistance of cellulose-containing textiles to micro-organisms Soil burial test Part 2: Identification of long-term resistance of a rot retardant finish The European Standard EN ISO 11721-2:2003 has the status of a British Standar
2、d ICS 07.100.99; 59.080.30 BS EN ISO 11721-2:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 24 October 2003 BSI 24 October 2003 ISBN 0 580 42806 0 National foreword This British Standard is the official English language version of EN IS
3、O 11721-2:2003. It is identical with ISO 11721-2:2003. The UK participation in its preparation was entrusted to Technical Committee TCI/80, Textiles Chemical testing, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. C
4、ross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or
5、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 legal obligations. aid enquirers to understand the text;
6、 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. Summary of pages This document comprises a front cover
7、 an inside front cover, the EN ISO title page, pages 2 to 8, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENO
8、RM ENISO117212 October2003 ICS07.100.99;59.080.30 Englishversion TextilesDeterminationoftheresistanceofcellulosecontaining textilestomicroorganismsSoilburialtestPart2: Identificationoflongtermresistanceofarotretardantfinish (ISO11721:2003) TextilesDterminationdelarsistanceauxmicro organismesdestexti
9、lescontenantdelacelluloseEssai denfouissementPartie2:Identificationdelarsistance longtermeduntraitementdimputrescibilit(ISO11721 2:2003) TextilienBestimmungderWiderstandsfhigkeit zellulosehaltigerTextiliengegenMikroorganismen ErdeingrabetestTeil2:Nachweisder Langzeitbestndigkeiteinerverrottungshemme
10、nden Ausrstung(ISO117212:2003) ThisEuropeanStandardwasapprovedbyCENon15May2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernin
11、gs uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesam
12、estatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZ
13、ATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO117212:2003EENISO117212:2003(E) 2 Contents Page Foreword . 3 Introduction 4 1 Scope 5
14、 2 Normativereferences 5 3 Safetyprecautionsandhealthhazardstooperators 5 4 Principle . 5 5 Apparatusandreagents . 5 6 Testspecimens . 6 7 Leachingprocedure 6 8 Determinationofthedegradationactivityofthetestsoil. 6 9 Procedure. 6 10 Calculationandexpressionofresults 7 11 Testreport 7ENISO117212:2003
15、E) 3 Foreword Thisdocument(ENISO117212:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC248 “Textilesandtextileproducts”,thesecretariatofwhichisheldbyBSI,incollaborationwithTechnical CommitteeISO/TC38“Textiles”. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofan ident
16、icaltextorbyendorsement,atthelatestbyApril2004,andconflictingnationalstandardsshall bewithdrawnatthelatestbyApril2004. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthe followingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Czech Republic,Denmark,
17、Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg, Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandtheUnited Kingdom.ENISO117212:2003(E) 4 Introduction Cellulosecontainingtextilesareconsideredasresistantagainsttheattackofmicroorganismslivingin thesoil,provi
18、dedthattheirstructure,appearanceandmaximumtensilestrengthhavenotbeen alteredessentiallyafterasoilburialtest. Theassessmentofdamageresistancetakesintoaccountthestructure,theaspectandthechanges inthemaximumtensilestrength,comparedtountreatedspecimensofthesamematerialquality.Itis assessedbycomparingthe
19、relativedecreaseofmaximumtensilestrengthofburiedspecimens,with thatofunburiedcontrolspecimens. Alongtermrotretardantfinishoranincreasedlongtermresistancemeetswiththerequirementsfor cellulosecontainingtextilesifthemaximumtensilestrengthofaburiedspecimen,comparedwith an unburiedspecimen,doesnotdecreas
20、ebymorethan25%. Thesoilburialintervalsforlongtermretardantfinishestaketwicethetimeneededforcontrol specimenstolose80%oftheirmaximumtensilestrength.Thesoilburialintervalsforincreasedlong termresistantfinishestakesfourtimesthetimeneededforthecontrolstolose80%oftheirmaximum tensilestrength.ENISO117212:
21、2003(E) 5 1Scope ThisEuropeanStandarddescribesatestprocedureforidentificationofthelongtermresistanceofarot retardantfinishagainsttheattackofmicroorganismsinthesoil. Itallowsdistinctiontobemadebetweenrotretardantfinisheswithnolongtermresistance,with regularlong termresistanceandwithincreasedlongtermr
22、esistance,inordertoassessthesuitabilityforuseinthe tropics. Asthesoilburialtestisabiologicalprocessandthetestsoilnotaccuratelydefined,thisEuropeanStandard onlycoversthecomparisonoffinishedandunfinishedspecimens. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisio
23、nsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthe
24、 latesteditionofthepublicationreferredtoapplies(includingamendments). ENISO117211:2001, TextilesDeterminationoftheresistanceofcellulosecontainingtextilestomicro organismsSoilburialtestPart1:Assessmentofrotretardantfinishing(ISO117211:2001) . ENISO139341,TextilesTensilepropertiesoffabricsPart1:Determ
25、inationofmaximumforceand elongationatmaximumforceusingthestripmethod(ISO139341:1999). ISO7218, MicrobiologyoffoodandanimalfeedingstuffsGeneralrulesformicrobiologicalexaminations. 3 Safetyprecautionsandhealthhazardstooperators Thismethodrequirestheuseofmouldfungiunderconditionsthatfavourthegrowthofmo
26、uldfungiand bacteria.AlltherequiredsafetyandpersonalhygienemeasuresshallbefollowedaccordingtoISO7218. 4Principle AccordingtoENISO117211,finishedandunfinishedspecimensaresubmittedtothesoilburialtestuntilthe unfinishedspecimenshavelost80%oftheirmaximumtensilestrength.Theburialtimerequiredforthis purpo
27、seisdefinedastimeinterval f 1 . Todeterminetheregularlongtermresistance,afurthersetofspecimensisremovedfromthetestsoilafter 2 f 1 ,forincreasedlongtermresistanceafter4 f 1 . 5 Apparatusandreagents 5.1 Containers, inaccordancewithENISO 117211:2001,5.1. 5.2 Testsoil , inaccordancewithENISO117211:2001,
28、5.2.ENISO117212:2003(E) 6 6 Testspecimens 6.1Samplingandpreparationofspecimens SpecimensshallbesampledandpreparedinaccordancewithENISO117211:2001,6.1. 6.2 Numberofspecimens Todeterminetherotretardantefficacyofspecimenswithnolongtermresistance,atleast20specimensshall beused(i.e.atleast10tobeburiedand
29、10nottobeburied).Forregularlongtermandincreasedlongterm resistancetests10morespecimensforeachtestshallbeburied. Ifadditionalleachingoftextileshasbeenagreed,doublethenumberofspecimensshallbeused. EXAMPLE Fortheidentificationoftherotretardantefficacyofleachedandunleachedspecimenswithnolongterm resista
30、nce,withregularlongtermresistanceandwithincreasedlongtermresistance,atleast80specimensarerequired. 6.3Controlspecimens Theendpoint( f 1 )shallbedeterminedInaccordancewithENISO117211usingatleast20unfinished, unleachedcontrolstripsofthesamematerialorequivalentmaterialqualityforthesoilburialtest,togeth
31、erwith 10specimenswhichwillnotbeburied,inordertodeterminetheinitialmaximumtensilestrength. 7Leaching procedure CarryoutleachinginaccordancewithENISO117211:2001,clause7. Leachedandunleachedspecimensshallbetested.Fordeterminingwaterproofrotretardantfinishings, leachedspecimensshallbetested. 8 Determin
32、ationofthedegradationactivityofthetestsoil DeterminethedegradationactivityofthetestsoilinaccordancewithISO117211:2001,clause8. Theactivityofthetestsoilshallfulfilthetensilestrengthlossofthecontrolwithin(72)days. 9Procedure CarryouttheproceduredescribedinENISO117211:2001,clause9. Thesoilburialtestsha
33、lllastuntilthecontrolstripshavelost80%oftheirmaximumtensilestrength.The durationoftheburialnecessarytogetthisvalueshallbedefinedastimeinterval f 1 ,expressedindays. Removethespecimensfortheassessmentoftheregularlongtermresistancefromthetestsoilwhen2 f 1 hasbeenreached. Removethespecimensfortheassess
34、mentoftheincreasedlongtermresistancefromthetestsoilwhen 4 f 1 hasbeenreached. Applythefollowing: f 2 =2 f 1 (1) f 4 =4 f 1 (2)ENISO117212:2003(E) 7 where f 1 isthetimeintervalindaysneededuntilthecontrolstripsloose80%oftheirmaximumtensilestrength; identificationofarotretardantfinishwithnolongtermresi
35、stance f 2 isthetimeintervalindaysneededtoidentifyarotretardantfinishwitharegularlongtermresistance f 4 isthetimeintervalindaysneededtoidentifyarotretardantfinishwithanincreasedlongterm resistance. 10 Calculationandexpressionofresults CalculatethemaximumtensilestrengthofallspecimensinaccordancewithE
36、NISO139341.Determinethe relativelossofthemaximumtensilestrength q H,M oftheburiedspecimensinrelationtotheaveragemaximum tensilestrengthobtainedfromthe10unburiedspecimens. Determinetherelativereductioninmaximumtensilestrength q H,M oftheburiedspecimenscomparedwiththe unburiedspecimensfromthemeanvalue
37、sofatleast10specimens,usingtheformulae O H f E H f M H f F F q , 1 , 1 , 1 = (3) O H f E H f M H f F F q , 1 , 2 , 2 = (4) O H f E H f M H f F F q , 1 , 4 , 4 = (5) where q f1H,M isthelossofthemaximumtensilestrengthoftheburiedspecimensaftertheburialtime f 1 . q f2H,M isthelossofthemaximumtensilestre
38、ngthoftheburiedspecimensaftertheburialtime f 2 . q f4H,M isthelossofthemaximumtensilestrengthoftheburiedspecimensaftertheburialtime f 4 . F f1H,O isthemaximumtensilestrengthoftheunburiedspecimenaftertheburialtime f 1 . F f1H,E isthemaximumtensilestrengthoftheburiedspecimensaftertheburialtime f 1. F
39、f2H,E isthemaximumtensilestrengthoftheburiedspecimensaftertheburialtime f 2. F f4H,E isthemaximumtensilestrengthoftheburiedspecimensaftertheburialtime f 4. Theregularincreasedlongtermrotretardantefficacyofthefinishisgivenifthefinishedspecimensloseless than25%ofthemaximumtensilestrength( q H,M 0,75)i
40、nthecorrespondingburialdiscipline. SeedetailsandvisualassessmentaccordingtoENISO117211. 11 Testreport Thefollowinginformationshallbeincludedinthetestreport. a) Numberanddateofthisinternationalstandard;ENISO117212:2003(E) 8 b) Descriptionandtechnicaldataofthesamples,i.e.whetherfinishedorunfinished; c
41、) Testspecimenpretreatment,e.g.leaching; d) Waterretentioncapacityofthetestsoil; e) Watercontentofthesoilusedatthebeginningandattheendoftesting; f) Individualandaveragevaluesofthemaximumtensilestrengthoftheunburiedspecimens; g) Individualandaveragevaluesofthemaximumtensilestrengthoftheburiedspecimen
42、s; h) Relativereductionofthemaximumtensilestrength; i) Appearanceandstructurechangesoftheburiedspecimens; j) Detailsofanydeviationsfromthespecifiedprocedure; k) Datesoftestprocedure,e.g.leaching,beginningofburial,endofburial; l) Datesofremovalofcontrolstripsandspecimens,withindividualandaveragevalue
43、softhemaximum tensilestrength; m) Nameandaddressofthetestlaboratory; n) Dateofpublicationofthetestreportwiththenameoftheresponsibleperson.blankBS EN ISO 11721-2:2003 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment o
