1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN ISO 8442-7:2001 The
2、 European Standard EN ISO 8442-7:2000 has the status of a British Standard ICS 67.250; 97.040.60 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Materials and articles in contact with foodstuffs Cutlery and table holloware Part 7: Requirements for table cutlery made of silver,
3、 other precious metals and their alloysThis British Standard, having been prepared under the direction of the Consumer Products and Services Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 February 2001 BSI 02-2001 ISBN 0 580 34827 X BS EN I
4、SO 8442-7:2001 Amendments issued since publication Amd. No. Date Comments National foreword This British Standard is the official English language version of EN ISO 8442-7:2000. It is identical with ISO 8442-7:2000. The UK participation in its preparation was entrusted to Technical Committee CW/17,
5、Cutlery and table holloware, which has the responsibility to: 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
6、 developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international p
7、ublications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the
8、 BSI Standards Electronic Catalogue. A British 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. Summ
9、ary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, pages 2 to 14, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO
10、84427 December2000 ICS67.250;97.040.60 Englishversion MaterialsandarticlesincontactwithfoodstuffsCutleryand tablehollowarePart7:Specificationfortablecutlerymadeof silver,otherpreciousmetalsandtheiralloys(ISO84427:2000) Matriauxetobjetsencontactaveclesdenres alimentairesCoutellerieetorfvreriedetableP
11、artie7: Spcificationsrelativeslacoutelleriedetableenargent massif,autresmtauxprcieuxetleursalliages(ISO8442 7:2000) WerkstoffeundGegenstndeinKontaktmitLebensmitteln SchneidwarenundTafelgerteTeil7:Anforderungenfr EbesteckeausSilber,anderenEdelmetallenundderen Legierungen(ISO84427:2000) ThisEuropeanSt
12、andardwasapprovedbyCENon9April2000. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonappli
13、cationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersar
14、ethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG Managem
15、entCentre:ruedeStassart,36B1050Brussels 2000CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO84427:2000EPage2 ENISO84427:2000 Contents Page Foreword 3 1Scope 4 2Normativereferences 4 3Termsanddefinitions 4 4Materials 4 5Construction 5 6Preciousmet
16、alplating 6 7Performance 6 8Markingandlabelling 8 AnnexA(normative)Methodoftestforadhesionofpreciousmetalcoating 9 AnnexB(normative)Methodoftestforcorrosionresistanceofknifeblades 10 AnnexC(normative)Testmethodforstrengthofkniveswithmartensitic stainlesssteelblades 12 AnnexD(informative)Adeviations
17、14Page3 ENISO84427:2000 Foreword ThetextofENISO84427:1999hasbeenpreparedbyTechnicalCommitteeCEN/TC194 “Utensilsincontactwithfood“,thesecretariatofwhichisheldbyBSI,incollaborationwith TechnicalCommitteeISO/TC186“Cutleryandtableanddecorativemetalhollowware“. ThisEuropeanStandardshallbegiventhestatusof
18、anationalstandard,eitherbypublication ofanidenticaltextorbyendorsement,atthelatestbyJanuary2001,andconflictingnational standardsshallbewithdrawnatthelatestbyJanuary2001. AttentionisdrawntotheEuropeanCommunityDirectivesrelativetomaterialsincontact withfoodstuffs,inparticularDirective89/109/EEC ENISO8
19、442consistsofthefollowingparts: Part1:Requirementsforcutleryforthepreparationoffood Part2:Requirementsforstainlesssteelandsilverplatedcutlery Part3:Requirementsforsilverplatedtableanddecorativeholloware Part4:Requirementsforgoldplatedcutlery Furtherpartsareproposedwiththefollowingtitles Part5:Specif
20、icationforsharpnessandedgeretentiontestofcutlery Part6:Lightlysilverplatedtablehollowareprotectedbyalacquer Part8:Requirementsforsilvertableanddecorativeholloware AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizations ofthefollowingcountriesareboundtoimplementthisEuropeanStan
21、dard:Austria,Belgium, CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy, Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnited Kingdom.Page4 ENISO84427:2000 1S c o p e ThisEuropeanStandardspecifiesmaterialandperformancerequirementsfortablecutlery madeofs
22、ilver,otherpreciousmetalsandtheiralloys(kniveswithstainlesssteelblades, forks,spoons,carvingsets,ladlesandotherpieces). Itdoesnotincluderequirementsfordesign,size,typeoffinish,bladeflexibility,orsimilar characteristicswhicharemattersofpersonalchoiceorwhichcanbereadilyassessedbythe purchaseratthepoin
23、tofsale.Nosamplingprovisionsareincludedinthisstandard,the requirementsspecifiedareapplicableforeachandeveryitemproduced. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedreference,provisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublic
24、ations arelistedhereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyof thesepublicationsapplytothisEuropeanStandardonlywhenincorporatedinitby amendmentorrevision(includingamendments). ISO4481:1977CutleryandflatwareNomenclature ISO6508:1986MetallicmaterialsHardnesstestRockwelltest(scal
25、esABCDEF GHK) EN100881:1995StainlessSteels,Part1:Listofstainlesssteels prEN1904:1995PreciousmetalsSoldersusedwithpreciousmetaljewelleryalloys 3 Termsanddefinitions ForthepurposesofthisEuropeanStandardthetermsanddefinitionsgiveninannexof ISO4481:1977applytogetherwiththefollowing. 3.1 unsharpenedknive
26、s kniveswithanunsharpenedbladeusedforcuttingsoftfoods NOTETheyarenotmadeofmartensiticstainlesssteel.Examplesarebutterknife, fishservingknife,icecreamknife,fishknife,spreadingknife,cheeseknife. 4 Materials 4.1 General Thetablecutleryshallbemadeofsilver,otherpreciousmetalsandtheiralloyswitha minimumst
27、andardoffinenessof800(expressedinpartsperthousand)thatenablethe finishedproducttomeetalloftheperformancerequirementsofthisstandardandwhichshall beneitherdetrimentaltohealthnorhaveanydetrimentalorganolepticeffects.Page5 ENISO84427:2000 4.2 Metals 4.2.1 Silverplating Anypartsofsilvertablecutlerymaybep
28、latedwithafinesilvercoating. 4.2.2 Soldering PreciousmetalsinanarticleshallbesolderedaccordingtoprEN1904:1995. 4.2.3 StainlessSteels Knifebladesandanypartsofthetablecutlery,whichhavetofulfilspecialrequirementse.g. carvingitems,shallbemadeofstainlesssteelsaccordingtoTable1. Table1Stainlesssteelfortab
29、lecutlery,limitingrequirements Application Name numberofmaterials structure Carvingitems X6CrMo171 1.4113 ferritic Knifeblades X2OCr13 1.4021 martensitic ThechemicalcompositionshallbeinaccordancewithEN100881:1995 4.3 Nonmetals Nonmetalpartsoftablecutlerymaybemadeofsuchmaterialsasglass,ceramics,plast
30、icsor similarmaterialsprovidedthatthefinishedcutlerycomplieswiththerelevantperformance requirementsof4.1. 5 Construction 5.1 Alignment,uniformityandabsenceofdefects 5.1.1 Allsurfacesshallbefreefromcracks,pitsandotherdefects. 5.1.2 Allcutleryshallbeessentiallystraightandsymmetricalexceptwhenthelackof
31、 straightnessorsymmetryisanintentionalfeatureofthedesign. 5.1.3 Identicalitemswithinabatchshall,asfarasispracticable,shownosignificant variationindimensionorform. 5.1.4 Alledges,includingtheedgesofspoons,forks,ladlesandtheinsidersofforkprongs, shallbefreefromburrsandtheroughnessofblankededgesshallha
32、vebeenremovedbya suitableoperation. 5.1.5 Tableknivesshallbebalancedsuchthatwhentheknifeispivotedonitsbolster,orat thejunctionofthehandleandbladeifnobolsterispresent,thehandleshallbeheavierthan theblade.Page6 ENISO84427:2000 5.1.6 Compliancewiththerequirementsfor5.1.1to5.1.5shallbecheckedbytouchorby
33、 visualinspection 5.2 Hollowhandles Theseamsjoininghollowhandlestogethershallbewatertight. 5.3 Knifeedges Thecuttingedgeofsharpenedtableknivesshallbeeitherscallopedorserratedorshallbe whettedtoanincludedanglenotgreaterthan60. Thecuttingedgesofacarvingknifebladeshallbewhettedtoanincludedanglenotgreat
34、er than40andshallnotbethickerthan0,46mmwhenmeasured1mmfromtheedge. 6 Preciousmetalplating 6.1 Hardnessofhardgoldcoatings Goldcoatingsclaimedtobehardshallcontain0,2%minimumCoorNiorFeoranyother elementwhichincreasesthehardness. 6.2 Adhesionofpreciousmetalcoatings WhentestedinaccordancewithannexAcoatin
35、gsshallshownosignsofflaking,blisteringor peeling. NOTE Alternativemethodsofdeterminingtheadhesionofcoatingsmaybeusedprovidedtheresultsobtained areincorrelationwiththosegivenbyballburnishing. 6.3 Finenessofpreciousmetalcoatings Thefinenessofpreciousmetalcoatingsshouldnotbelessthan925. 7 Performance 7
36、.1 Resistancetocorrosion Thesurfacesofstainlesssteelpartsoftablecutleryshallcomplywiththerequirementsa)to c)whentestedinaccordancewiththemethoddescribedinannexB: a) notransversecracksshallhavedevelopedandnolongitudinalcracksofa lengthexceeding1,5mmshallhavedeveloped; b) thereshallnotbemorethanthreep
37、itsorzonesofintergranularcorrosioneach havinganareagreaterthanacircleof0,4mmdiameteronthehandle,andnotmore thanthreepitseachhavinganareagreaterthanacircleof0,4mmdiameter(0,126 mm 2 )elsewhere; c) thereshallbenopitsorzonesofintergranularcorrosionhavinganareagreater thanacircleof0,75mm(0,442mm 2 )onan
38、ypart.Page7 ENISO84427:2000 7.2 Strength 7.2.1 Kniveswithmartensiticstainlesssteelblades Aknifeshallnotcrackorbreakandshallnotacquireapermanentdeformationofmorethan 30,5whentestedinaccordancewiththemethoddescribedinannexC.Inaddition,the handlebladejointshallnotbecomeloose. 7.2.2 Spoons,forks,ladlesa
39、ndunsharpenedknives Anitemshallnothaveapermanentdeformationofmorethan1mmwhentestedasfollows; anitemshallbelaidonaplanewiththehighestpointofthehandlefacingupward.Aforce shallbeappliedequivalentto5,5Nforeachcentimetreofoveralllengthor80N 10N whicheveristhelesserfor10s(seefigure1foraspoon).Duringtheapp
40、licationofthisforce thepointofrestofthehandle(Ainfigure1)shallnotbemorethan10mmfromtheedgeof thesupportingsurface. Key llength Apointofrest Figure1StrengthtestforaspoonPage8 ENISO84427:2000 7.2.3 Firmnessofhandleattachment Handlesthatarenotanintegralpartoftherestoftheitemshallbeattachedbyamethodthat
41、 preventsthehandleturningrelativetotherestoftheitemorpullingawayfromtheblade when,immediatelyafterbeingimmersedfor10mininwateratatemperatureof(100 5 0 )C, theitemissubjectedto a) apullingforceof180 10 0 for10s; b) atorqueof(4,5 02 0 , )Nmforitemswhosehandleshaveasurfaceareaof37 cm 2 ormore,oratorque
42、of(3,7 02 0 , )Nmforitemswhosehandleshaveasurfaceareaofless than37cm 2 .Thetorqueshallbeappliedfor10s. Thepullingforceandtorqueshallbeappliedsuccessively. 7.3 Hardnessofknifeblades Knifebladesmadefrommartensiticstainlesssteelshallhaveaminimumhardnessof48HRC whentestedinaccordancewithISO6508:1986.Rea
43、dingsshallbetakennotlessthan40mm fromthehandle. Carvingknifebladesshallhaveaminimumof52HRC. 8 Markingandlabelling Eachitemofcutleryshallbelegiblyandindeliblymarkedwiththenameand/ortrademarkor othermeansofidentifyingthemanufacturerorresponsiblesupplier. Thefollowinginformationshallbemadeavailableatthepointofsale: thenumberofthisEuropeanStandard, astatementthatthecutlerymeetstherequirementsofthestandard. Thisinformationmaybeprovidedasleafletsonthepackagingorbymeansoflabellingoron adisplaycardorinanyothersuitableform.Page9 ENISO84427:2000 AnnexA (normative) Meth
