BS ISO 1957-2000 Machine-made textile floor coverings - Selection and cutting of specimens for physical tests《机织铺地织物 物理试验用试样的选择和截取》.pdf

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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS ISO 1957:2000 ICS 59.0

2、80.60 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Machine-made textile floor coverings Selection and cutting of specimens for physical testsThis British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published un

3、der the authority of the Standards Committee and comes into effect on 15 October 2000 BSI 10-2000 ISBN 0 580 36440 2 BS ISO 1957:2000 Amendments issued since publication Amd. No. Date Comments National foreword This British Standard reproduces verbatim ISO 1957:2000 and implements it as the UK natio

4、nal standard. It supersedes BS 4664:1985 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/3, Textile floor coverings, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee

5、 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. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-reference

6、s The British Standards which implement international 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 the “Find” facility of the BSI Standards Electronic Catalogue. A British

7、Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front co

8、ver, an inside front cover, the ISO title page, pages ii and iii, a blank page, pages 1 to 3 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.INTERNATIONAL STANDARD ISO 1957 Thirdedition 2000-07-15 Referencenumber ISO1957:2000(E) Machi

9、ne-madetextilefloorcoverings Selectionandcuttingofspecimensfor physicaltests Revtements de sol textiles fabriqus la machine Slection et prlvement des prouvettes en vue des essais physiquesISO1957:2000(E) ii ISO1957:2000(E)iii Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefe

10、derationofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcom- mittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhasthe righttoberepresentedonthatcommittee.Internationalorganizations,governm

11、entalandnon-governmental,inliai- sonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission (IEC)onallmattersofelectrotechnicalstandardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3. DraftInternationalStan

12、dardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote. AttentionisdrawntothepossibilitythatsomeoftheelementsofthisInternationalStandardmaybethesubjectof patentrights.ISOshallnotbeheld

13、responsibleforidentifyinganyorallsuchpatentrights. InternationalStandardISO1957waspreparedbyTechnicalCommitteeISO/TC219, Floor coverings. Thisthirdeditioncancelsandreplacesthesecondedition(ISO1957:1986),whichhasbeentechnicallyrevised. AnnexAofthisInternationalStandardisforinformationonly.INTERNATION

14、ALSTANDARD ISO1957:2000(E)1 Machine-madetextilefloorcoveringsSelectionandcuttingof specimensforphysicaltests 1Scope ThisInternationalStandardspecifiesaproceduretobefollowedwhenspecimensarecutfromsamplesifsuchspec- imensaretobeusedforphysicaltests. Thereferencemethodforselectionofthesamplefromthebulk

15、materialisgivenininformativeannexA. UnlessselectedinaccordancewithannexAitisacceptedthatthesampletakenmaynotnecessarilybecompletely representativeofthebulk.Itisrecommendedthatthemethodofsamplingbepreviouslyagreedbythepartiesinter- estedintheresultsofthetest. Theprocedureisapplicabletomachine-madetex

16、tilefloorcoveringswithorwithoutpile. 2 Principle Proceduresaregivenfortheselectionoftestspecimensfromasampleinsuchawaythattheyareasrepresentative ofthebulkaspossible. 3 Procedure 3.1Examinethesampleandnoteandrecordanyphysicalvariationacrossthesample.Suchvariationswouldin- clude,forinstance,rowsoflon

17、gorshorttuftsorvariationsinpile-layoruse-surfacebetweendifferentpartsofthe sample. 3.2Wherethespecimensarerequiredtobesquareorrectangularinshape,cutthemsothattheedgesareparallel tothewarpandweftdirectionsor,incertaintypesoftextilefloorcovering,parallelandatrightanglestothemachine productiondirection

18、.Ifthesampledoesnothaveaperfectlysquareconstruction,stillcutthespecimensasdescribed aboveandnoteinthereportthefactthataslightlyskewspecimenisproduced. 3.3Wherethesampleincludesaselvedgeoredgeoftuftsformingtheactualpile,suchanedgerunninginthema- chinedirection,cutthespecimensothatnopartofitlieswithin

19、 ofthisedge. 3.4Cutspecimenssothatnopartiswithin oftheweft-wiseedge,ortheedgeatrightanglestothema- chinedirection.Ifitisknownthattheweftcutwasmorethan fromapilechange,thencutthespecimenso thatnopartofitlieswithin ofaweftedgeoredgeatrightanglestothemachinedirection. 3.5Ifmorethanonespecimenistobecutf

20、romthesample,arrangethemequallyandaswidelyaspossibleover theavailablesamplearea,ensuringthat(wheretheconstructionallows)thespecimensdonotcontainthesame warpandweftthreads.Ifduplicationisinevitable,thenavoidtakingrepeatedspecimensinthedirectionofmachine production.Noteinthereportanyduplicationwhichoc

21、curs.Figure1illustratesthepreferredwaytotakefourtest specimens. NOTEForproductsmanufacturedfromcross-laidwebs,itispreferabletoavoidduplicationinthedirectionatrightanglestothe directionofmachineproduction. 100mm 300mm 300mm 50mmISO1957:2000(E) 2 3.6Whencuttingspecimensfromasample,arrangethemaswidelya

22、spossibleovertheavailablesamplearea. Whenmultiplespecimensaretaken,theyshallbeequallyarrangedoneithersideofalinebisectingthesampleinthe warpormachinedirection. 3.7Wherespecimensarebeingtakenformorethanonetestprocedure,interspersethespecimensonthesample asfaraspossible,forexamplebytheuseofrandomnumbe

23、rsdesignatingpositionsonagrid. 3.8Ifthesamplecontainsmorethanonelevelofpileoruse-surface,takespecimensobeyingtheaboverulesin areascontainingasfaraspossibleonlyonelevelofpileoruse-surface,andensurethatanytreatedortestedarea liesentirelyinanareaofonethicknessandatleast fromanychangeinthickness. 4 Samp

24、lingreport Thesamplingreportshallstate: a)thattheprocedurespecifiedinclause3wasobservedanddetailsofanydeviationfromthisprocedurethatoc- curred; b)whetherthespecimenswereskewedornot; c)whetherduplicationofeitherwarporweftinthespecimensoccurred; d)whetherthespecimenscontainmorethanonelevelofpileoruse-

25、surface,andtherelationbetweenthetestre- sultsandparticularlevelsofpileoruse-surface. Figure1Exampleofcuttingfourtestspecimens 200mmISO1957:2000(E)3 AnnexA (informative) MachinemadetextilefloorcoveringsSelectionandcuttingsamplesfor physicaltestsReferencemethod A.1Scopeandfieldapplication Thisannexspe

26、cifiestheidealproceduretobefollowedwhensamplesaretakenfromabulksupplyofmachine-made textilefloorcoverings,orfromspeciallyproducedmaterial,whicharesubsequentlytobeusedforphysicaltesting. Theprocedureisapplicabletomachine-madetextilefloorcoveringswithorwithoutpile. A.2Principle Proceduresaregivenforth

27、eselectionofasamplefromthebulkmaterialinsuchawaythatitisasrepresentativeof thebulkaspossible. A.3Procedure A.3.1Takeanysampleacrossthewholeproductionwidthoftheproduct,excludinganyportionnormallytrimmed offduringtheproductionprocess. A.3.2Examinethesampleandnoteandrecordanyphysicalvariationacrossthes

28、ample.Suchvariationswould include,forinstance,rowsoflongorshorttuftsorvariationsinpile-lieoruse-surfacebetweendifferentpartsofthe sample. A.3.3Wherethesampleisrequiredtobesquareorrectangularinshape,cutitsothattheedgesareparalleltothe warpandweftdirectionsor,incertaintypesoftextilefloorcovering,paral

29、lelandatrightanglestothemachinepro- ductiondirection.Ifthebulkmaterialdoesnothaveaperfectlysquareconstruction,stillcutthesampleasdescribed aboveandnotethefactthataslightlyskewsampleisproduced.BS ISO 1957:2000 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | |

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