SIST EN 1906:2002
(Main)Building hardware - Lever handles and knob furniture - Requirements and test methods
Building hardware - Lever handles and knob furniture - Requirements and test methods
This European Standard specifies test methods and requirements for spindle and fastening elements, operating torques, permissible free play and safety, free angular movement and misalignment, durability, static strength and corrosion resistance for sprung and unsprung lever handles and knobs for doors on backplates or roses.
This standard is applicable only to lever handles and knobs that operate a latch or a lock.
It states four categories of use according to the frequency and other conditions of use.
Compliance with this European Standard ensures a margin of strength in excess of that needed for normal operation. Additional requirements are needed for special safety furniture which is suitable for use in situations where there is a high risk of falling. Since special safety furniture is not essential in every situation, this European Standard provides for additional safety requirements (see 5.13) which are only necessary when the manufacturer states that the safety furniture is claimed to conform to these requirements.
This standard states five grades of security. Grade 0 according to requirements stated in the main part of this standard. Grades 1 to 4 are stated according to requirement for security lock furniture for use on burglary resistant doors (see annex A). These additional security requirements are necessary only when the manufacturer states that the products are claimed to have a high level of security, which is not essential in every situation.
The suitability of lock or latch furniture for use on fire/smoke door assemblies is determined by fire performance tests conducted in addition to the performance tests required by this standard. Since suitability for use on fire/smoke door assemblies is not essential in every situation, the manufacturer has the option of stating whether the furniture is claimed to conform to these additional requirements or not. If so stated the additional requirements given in annex C are necessary.
Schlösser und Baubeschläge - Türdrücker und Türknäufe -Anforderungen und Prüfverfahren
Diese Europäische Norm legt Prüfverfahren und Anforderungen an Drückerstifte und Befestigungsele-
mente, Betätigungsmomente, zulässiges freies Spiel und Sicherheit, freie Winkelbewegung und Verset-
zung, Dauerfunktion, statische Festigkeit und Korrosionsbeständigkeit von Türdrückern und Türknäufen
mit und ohne Hochhaltefeder auf Türschildern oder Türrosetten fest.
Diese Norm gilt nur für Türdrücker und Türknäufe, mit denen eine Falle oder ein Schloss betätigt wird.
Diese Norm enthält entsprechend der Betätigungsfrequenz und weiteren Bedingungen vier Anwen-
dungsklassen.
Diese Europäische Norm erfüllt die grundsätzlichen Anforderungen an die Sicherheit bei der Anwendung
und die Übereinstimmung mit dieser Norm und legt einen größeren Festigkeitsbereich fest, als er für nor-
male Zwecke benötigt wird. Für spezielle Sicherheitsbeschläge, die für Einsatzzwecke geeignet sind, bei
denen eine hohe Gefährdung durch Herunterfallen besteht, sind zusätzliche Anforderungen erforderlich.
Weil spezielle Sicherheitsbeschläge nicht für jede Anwendung notwendig sind, gibt diese Europäische
Norm zusätzliche Sicherheitsanforderungen (siehe 5.13), die aber nur dann erforderlich sind, wenn vom
Hersteller angegeben wird, dass die Sicherheitsbeschläge diese Anforderungen erfüllen müssen.
Diese Norm legt fünf Sicherheitsklassen fest. Klasse 0 richtet sich nach den im Hauptteil dieser Norm
festgelegten Anforderungen. Die Klassen 1 bis 4 sind nach den Anforderungen an Sicherheitsbeschläge
für einbruchhemmende Türen festgelegt (siehe Anhang A). Diese zusätzlichen Schutzanforderungen
sind nur dann notwendig, wenn der Hersteller angibt, dass die Produkte eine hohe Einbruchsicherheit
aufweisen müssen, die nicht in jedem Fall erforderlich ist.
Quincaillerie pour le bâtiment - Béquilles et boutons de porte - Prescriptions et méthodes d'essai
La présente Norme européenne spécifie les méthodes d'essai ainsi que les prescriptions pour les tiges carrées et les éléments de fixation, les couples opérationnels, le jeu autorisé et la sécurité, la rotation et le désaxage, l'endurance, la résistance statique et la résistance a la corrosion pour les dispositifs de porte a béquilles et boutons, avec ou sans ressort de rappel, sur plaques ou rosettes.
La présente norme s'applique uniquement aux béquilles et boutons de portes qui actionnent une serrure a pene dormant ou une serrure bec de cane.
Elle établit quatre catégories d'utilisation selon la nature et la fréquence d'utilisation.
La conformité a cette norme assure une marge de résistance supérieure a celle requise pour une utilisation normale. Des prescriptions supplémentaires sont nécessaires pour des dispositifs de sécurité spéciaux destinés a etre utilisés dans des situations ou un risque majeur de chute existe. Etant donné qu'un dispositif de sécurité n'est pas nécessaire dans tous les cas, cette Norme européenne prévoit pour les prescriptions de sécurité additionnelles (voir 5.13) qu'elles soient obligatoires lorsque le fabricant stipule que le dispositif de sécurité est reconnu conforme a ces prescriptions.
Stavbno okovje - Kljuke in bunke - Zahteve in preskusne metode
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Stavbno okovje - Kljuke in
bunke -
Zahteve in preskusne metodeSchlösser und Baubeschläge - Türdrücker und Türknäufe -Anforderungenund PrüfverfahrenQuincaillerie pour le bâtiment - Béquilles et boutons de porte - Prescriptions et méthodes d'essaiBuilding hardware - Lever handles and knob furniture - Requirements and test methods91.190Stavbna opremaBuilding accessoriesICS:Ta slovenski standard je istoveten z:EN 1906:2002SIST EN 1906:2002en01-julij-2002SIST EN 1906:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1906February 2002ICS 91.190English versionBuilding hardware - Lever handles and knob furniture -Requirements and test methodsQuincaillerie pour le bâtiment - Béquilles et boutons deporte - Prescriptions et méthodes d'essaiSchlösser und Baubeschläge - Türdrücker und Türknäufe -Anforderungen und PrüfverfahrenThis European Standard was approved by CEN on 4 November 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1906:2002 E
EN 1906:2002 (E)2ContentsForeword.31Scope.42Normative references.43Terms and definitions.54Classification.95Requirements.116Tests - Sequence and test.157Test methods.188Marking.21Annex A (normative)
Requirements for security lock furniture for use on burglaryresistant doors.23Annex B (informative)
Test apparatus illustrations.29Annex C (normative)
Requirements for lock and latch furniture for use on fire/smokedoor assemblies.38Annex D (informative)
Flow charts of test procedures.39Bibliography.41
EN 1906:2002 (E)3ForewordThis document (EN 1906:2002) has been prepared by Technical Committee CEN/TC 33 "Doors,windows, shutters, building hardware and curtain walling", the secretariat of which is held by AFNOR.This European Standard shall be given the status of a national standard, either by publication of anidentical text or by endorsement, at the latest by August 2002, and conflicting national standards shallbe withdrawn at the latest by August 2002.Contribution to the preparation of this standard has been made from the European manufacturer'sorganisation "ARGE".This European Standard is part of a series of European Standards dedicated to building hardwareproducts.Compliance of a set of lock or latch furniture with this European Standard, in its entirety satisfies theConstruction Products Directive with regard to the essential requirements in normal use, for safety inuse and for safety in case of fire.In this standard the Annexes A and C are normative and the Annexes B and D informative.Normative and informative annexes to this standard are indicated in the contents.Normative annexes give information on requirements for security lock furniture that offers enhancedresistance to attack, requirements for lock furniture and latch furniture that offers enhanced resistanceto fire and the essential requirements.Work is in progress in order to support the implementation of the European Standards by evidencewhich demonstrates the conformity of products to the technical requirements set out in thosestandards.In order not to delay the publication of the present standard, those conformity assessment criteriarelated to lever handles and knobs will be published separately. They will be incorporated in thisstandard when next revised.According to the CEN/CENELEC Internal Regulations, the national standards organizations of thefollowing countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta,Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.
EN 1906:2002 (E)41 ScopeThis European Standard specifies test methods and requirements for spindle and fastening elements,operating torques, permissible free play and safety, free angular movement and misalignment,durability, static strength and corrosion resistance for sprung and unsprung lever handles and knobsfor doors on backplates or roses.This standard is applicable only to lever handles and knobs that operate a latch or a lock.It states four categories of use according to the frequency and other conditions of use.Compliance with this European Standard ensures a margin of strength in excess of that needed fornormal operation. Additional requirements are needed for special safety furniture which is suitable foruse in situations where there is a high risk of falling. Since special safety furniture is not essential inevery situation, this European Standard provides for additional safety requirements (see 5.13) whichare only necessary when the manufacturer states that the safety furniture is claimed to conform tothese requirements.This standard states five grades of security. Grade 0 according to requirements stated in the mainpart of this standard. Grades 1 to 4 are stated according to requirement for security lock furniture foruse on burglary resistant doors (see annex A). These additional security requirements are necessaryonly when the manufacturer states that the products are claimed to have a high level of security,which is not essential in every situation.The suitability of lock or latch furniture for use on fire/smoke door assemblies is determined by fireperformance tests conducted in addition to the performance tests required by this standard. Sincesuitability for use on fire/smoke door assemblies is not essential in every situation, the manufacturerhas the option of stating whether the furniture is claimed to conform to these additional requirementsor not. If so stated the additional requirements given in annex C are necessary.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from otherpublications. These normative references are cited at the appropriate places in the text and thepublications are listed hereafter. For dated references, subsequent amendments to, or revisions of,any of these publications apply to this European Standard only when incorporated in it by amendmentor revision. For undated references the latest edition of the publication referred to applies (includingamendments).EN 1634-1, Fire resistance tests for door and shutter assemblies - Part 1: Fire doors and shuttersEN 1670:1998, Building hardware — Corrosion resistance — Requirements and test methodsISO 10899:1996, High-speed steel two-flute twist drills — Technical specifications
EN 1906:2002 (E)53 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply.3.1backplateelement generally, but not essentially, approximately rectangular in plan whose purpose is, firstly,functional to provide a bearing for the rotation of a door lever handle or knob and the means ofattachment to the door and, secondly, decorative as a trim plate to cover holes provided in the doorfor the passage of spindles, keys or lock cylinders (see Figure 1a)3.2baseplatecomponent of an assembly of two parts that fit together to form a backplate or rose. This baseplateprovides the bearing and means of fixing the assembly to the door (see Figure 1b)3.3door furniturecombination of lever handles or knobs on backplates or roses for the purpose of operating latches orlocks3.4door knobfixed or rotatable operating element, usually designed to be circular in plan, but which may be non-circular with a maximum offset of 75 mm from its axis of rotation, which engages a spindle passingthrough the door; the spindle then operating a latch mechanism when rotated, so that the latch bolt iswithdrawn in order to unlatch the door, or alternatively, is fixed against rotation and is used to pull thedoor to the closed position and thereby relatch the door (see Figure 2)3.5door lever handlerotatable operating element designed as a lever whose length from its axis of rotation to its free endexceeds 75 mm and which engages a spindle passing through a door3.6emergency releasefacility provided on the external plate that enables the door to be opened in case of emergency (seeFigure 3)3.7entrance setany set of two lever handles or knobs with two lockplates or latchplates or, alternatively, roses andescutcheons and complete with a spindle and fastening elements where one lever handle or knob isfree to rotate to withdraw the latch bolt and the other is fixed to act only as a door pull3.8escutcheonsurround with a shaped hole to accommodate a key or a lock cylinder, with or without a pivoted coverplate, intended primarily to protect the door leaf from abrasion damage caused by keys (see Figure 2)3.9external platebackplate or rose that is fitted on the external face of a door (see Figure 3)
EN 1906:2002 (E)63.10fixed spindling systemsystem in which the spindle is fastened to both lever handles or both knobs of a lockset or latchsetoften without any additional fixing of the handles or knobs to the backplates or roses, which allows therotation of the follower of the lock or latch to withdraw the latch bolt,
permits adaptation for differentthicknesses of doors, connects the lever handle or knob to the spindle and transmits imposed axialpulling forces to the opposite face of the door3.11floating spindling systemsystem in which the spindle is not attached to either of the lever handles or knobs of a lockset orlatchset but has additional fixing of the lever handles or knobs to the backplates or roses, whichallows the rotation of the follower of the lock or latch to withdraw the latchbolt and permits adaptationfor different thicknesses of doorsNOTEThis system does not transmit imposed axial pulling forces to the opposite face of the door.3.12half setsingle lever or knob attached to a plate or rose which allows operation of the lock or latch from oneside of the door only and usually supplied with a short length spindle fixed to the lever or knob3.13indicatordevice that is visible from the exterior of the door to indicate whether the door is locked or unlocked3.14internal platebackplate or rose that is fitted on the internal face of a door (see Figure 3)3.15latchplatebackplate adapted for use in conjunction with a latch and having no keyhole or cylinder aperture3.16lockplate – cylinderbackplate having a cylinder aperture for use in conjunction with a cylinder lock3.17lockplate – leverbackplate having a keyhole for use with a lever lock3.18plug protection plateplate whose function is to protect the cylinder plug and its components against violent attack3.19roseelement generally circular, but which may have equi-axed or approximately equi-axed shapes such assquare or octagonal, that otherwise has the same features as a backplate (see Figure 2)3.20security furnituredevice which provides added resistance to the lock and/or cylinder against physical attack3.21set of mortice latch furnituretwo door lever handles or knobs with two latchplates or roses and complete with a spindle andfastening elements
EN 1906:2002 (E)73.22set of mortice lock furnituretwo door lever handles or knobs with two lockplates or, alternatively, roses and escutcheons completewith a spindle and fastening elements (see Figure 2)3.23snibsmall T-handle, knob or other handle fitted to the internal plate of a set of latch furniture that operatesa device which prevents rotation of the lever handle or knob, thereby providing locking of the door forprivacy3.24special safety furniturewhere the strength of the fixing of the lever or knob to the backplate and/or spindle and the strength ofthe fixing of the backplate to the door combine to provide a robust attachment to withstand a heavyforce in the direction of removing the lever or knob from the door3.25spindlebar, usually square in cross-section, that engages a pair of lever handles or knobs on opposite sidesof a door, passing through the door and engaging a latch action, thereby providing the mechanicalconnection by which the latch is operated when a lever handle or knob is rotated3.26spring-assisted furniturelever handle furniture, usually exceptionally heavy in design, that incorporates a spring which assiststhe return of the lever handle to its intended "at-rest" position but which may not necessarily havesufficient torque to return it fullyNOTEFor exceptionally heavy lever handles it is difficult to design springs that have sufficient torque toreturn the handles and also have an adequate working life. For reasons relating to design of spring, the operatingangle of such lever handles is usually restricted to 40°, and they are used with latches whose bolts retract fully atthis angle of operation. When in use the combined action of the lever handle spring and the latch spring issufficient to return the lever handle to its intended "at-rest" position.3.27spring-loaded furnituredoor furniture that incorporates a spring which fully returns the lever handle or knob to its intended "at-rest" position after operating the latchNOTESpring-loaded furniture frequently includes an internal stop to prevent rotation beyond the intended"at-rest" position, but this feature is not essential if the furniture is used in conjunction with a latch mechanismincorporating its own stop.3.28thumb turnsmall T-handle, knob or other handle fitted on the internal plate of a set of bathroom lock furniture thatoperates a lock deadbolt in order to provide privacy rather than high security (see Figure 3)3.29trim platecomponent of an assembly of two parts that fit together to form a backplate or rose which is fastenedto the baseplate as a decorative cover (see Figure 1b)
EN 1906:2002 (E)8Key1
Baseplate2
Trim plateFigure 1a — One part backplateFigure 1b — Two part backplateFigure 1 — Illustrations of backplatesKeyKey1
Rose1
External plate4
Emergency release2
Door knob2
Internal plate5
Thumb turn3
Escutcheon3
Lever handleFigure 2 — Set of lock furnitureFigure 3 — Bathroom lockset
EN 1906:2002 (E)94 Classification4.1 Coding system4.1.1 GeneralFor the purpose of this European Standard, lever handles and knobs for doors on backplates or rosesshall be classified according to the eight digit coding system described in 4.1.2 to 4.1.9.4.1.2 Category of use (first digit)Four grades are identified : grade 1 : medium frequency of use by people with a high incentive to exercise care and with asmall chance of misuse, e.g. internal residential doors ; grade 2 : medium frequency of use by people with some incentive to exercise care but wherethere is some chance of misuse, e.g. internal office doors ; grade 3 : high frequency of use by public or others with little incentive to exercise care and with ahigh chance of misuse, e.g. public office doors ; grade 4 : high frequency of use on doors which are subject to frequent violent usage, e.g. footballstadiums,
offshore installations (oil rigs), barracks, public toilets, etc.4.1.3 Durability (second digit)Two grades of durability are identified : grade 6 : medium frequency of use : 100 000 cycles ; grade 7 : high frequency of use : 200 000 cycles.4.1.4 Door
mass (third digit)No classification.4.1.5 Fire resistance (fourth digit)Two grades of fire resistance are identified : grade 0 : not approved for use on fire/smoke door assemblies ; grade 1 : suitable for use on fire/smoke door assemblies.4.1.6 Safety (fifth digit)Two grades of safety are identified :— grade 0 : normal use ;— grade 1 : safety applications.NOTEStandard furniture requires compliance with 5.1 to 5.12.
Safety furniture requires compliance with5.1 to 5.13.
EN 1906:2002 (E)104.1.7 Corrosion resistance (sixth digit)Five grades of corrosion resistance are identified according to EN 1670:1998. grade 0 : no defined corrosion resistance ; grade 1 : mild resistance ; grade 2 : moderate resistance ; grade 3 : high resistance ; grade 4 : very high resistance.Products for internal use shall comply with the minimum requirements for grade 1.Products for external use, e.g. entrance doors, shall comply with the minimum for grade 3. Othergrades can be chosen for special purposes. e.g. grade 4 should be used for products exposed tomarine atmospheres or very polluted industrial environments.Products which are intended to develop a natural surface patina (e.g. bronze or brass products) or areintended to be cleaned frequently, are not required to comply with any corrosion requirements.4.1.8 Security (seventh digit)Five grades of security are identified : grade 0 : furniture not approved for use on burglary resistant doors; grade 1 : mild burglary resistance; grade 2 : moderate burglary resistance; grade 3 : high burglary resistance; grade 4 : extra high burglary resistance.Grades 1, 2, 3 and 4 are determined according to the requirements and optional tests of annex A.Furniture submitted to annex A shall firstly comply with all the appropriate requirements of clause 5and meet the additional requirements of annex A in order to be deemed to comply with this EuropeanStandard.4.1.9 Type of operation (eigth digit)Three types of operation are identified: type A : spring-assisted furniture. type B : spring-loaded furniture. type U : unsprung furniture.
EN 1906:2002 (E)114.2 Example of classification1166——00001100UUThis classification example denotes furniture for use by people with a high incentive to use care in adomestic situation, with durability grade 6 for medium frequency of use. There is no classification fordoor mass, it is not approved for fire/smoke doors, nor for safety applications and has a mildresistance to corrosion for internal use. It is not suitable for use on burglary resistant doors and is ofthe unsprung type.5 Requirements5.1 GeneralSets of lock or latch furniture shall be subjected to the sequence of tests specified in 6.1, and listed inTable 1 using the test apparatus in accordance with 6.2 and the methods specified in clause 7 andshall meet the requirements detailed in 5.2 to 5.14.For entrance sets, endurance tests shall be undertaken on the equivalent set of lock or latch furnitureto verify that both lever handles or knobs comply with the durability requirements. All other appropriatetests shall be carried out on the entrance set assembly. Furniture that is made available with a leverone side and a knob on the other side shall be made known to the testing authority and endurancetests shall be undertaken accordingly.According to this standard, sets of furniture shall be classified in grades 1 to 4 (see 4.1.2) in regard tothe performance requirements detailed in 5.2 to 5.13.NOTEIf door furniture is to perform satisfactorily in service, it is essential that it is correctly selected for theapplication for which it is to be used and fitted strictly in accordance with the manufacturer's recommendations.Materials in products shall not release any dangerous substances in excess of the maximum levels specified inthe European material standards and any national regulations.
EN 1906:2002 (E)12Table 1 — Main test parametersTestSub-clauseFigureDescriptionCategory of use acceptance criteriagrade 1grade 2grade 3Grade 415.2 and 7.3.1—Check of fastening elements and spindleyes/ noyes/ noyes/ noYes/ noRotational torque strength25.3 and 7.3.2B.1— rotational torque
5 %20 Nm30 Nm40 Nm60 Nm— pre-torque
0,1 N.m1 Nm1 Nm1 Nm1 Nm— permanent deformation at 50 mm
2 mm 5 mm 5 mm 5 mm 5 mmAxial strength35.4 and 7.3.3B.3— Axial strength 50% at 50 mm
1 mm300 N500 N800 N1 000 N— pre-load
1N at 50 mm
1 mm15 N15 N15 N15 N— permanent deformation at 75 mm
2 mm 2 mm 2 mm 2 mm 2 mmFree play "at-rest" and then at 60°
5 ° or maximumof design45.5 and 7.3.4B.8— force
1N at
50 mm
1 mm15 N15 N15 N15 N— total movement at 75 mm
2 mm 10 mm 10 mm 6 mm 6 mmSafety requirementsyesyesyesYesFree angular movement55.6 and 7.3.5B.9— force
1N at 50 mm
1 mm15 N15 N15 N15 N— misalignment measured at 75 mm
2 mm 10 mm 10 mm 5 mm 5 mmTorque of return mechanism— unsprung lever handles 0,6 Nm 0,6 Nm 1,5 Nm 1,5 Nm— unsprung knobs 0,6 Nm 0,6 Nm 0,6 Nm 0,6 Nm— spring-loaded lever handles/knobs 1,5 Nm 1,5 Nm 2,4 Nm 2,4 Nm65.7 and 7.3.6—— spring-assisted lever handles :
a)
to operate lever handle 1,5 Nm 1,5 Nm 2,4 Nm 2,4 Nm
b)
to return lever handle 0,6 Nm 0,6 Nm 1,5 Nm 1,5 NmAngle of rotation— except spring-assisted lever 40° 40° 40° 40°Limit deviations "at-rest" for spring-loaded"
leverhandles/knobs 4° 2° 1° 1°Endurance test— number of cycles 10%100 000100 000200 000200 00075.8 and 7.3.7B.6— force L 50 %60 N60 N100 N100 N— force P 50 %60 N60 N100 N100 N— limit deviations "at-rest" after test (except for spring 4 ° 2 ° 1 ° 1 °
assisted levers)85.9 and 7.3.8B.3Axial strength (repetition of test 3)Same values as for test 395.10 and7.3.9B.8Free play (repetition of test 4)Same values as for test 4 except for specialsafety requirements105.11 and7.3.10B.9Free angular movement (repetition of test 5)Same values as for test 5115.12 and 7.3.11—Torque of return mechanism
(repetition of test 6)Same values as for test 6125.13 and 7.3.12B.3Axial strength 50% at
50 mm
1 mm optional test1 500 N1 500 N2 500 N2 500 Napplicable to special safety furniture only.135.14 and 7.4—Corrosion resistanceTo comply with requirements of EN 1670:1998
EN 1906:2002 (E)135.2 Check of spindle and fastening elementsThe spindle and fastening elements shall be supplied or specified by the manufacturer with every set of lock orlatch furniture. The manufacturer shall state clearly the door thickness or range of door thicknesses for which thefurniture is suitable and in the case of spring assisted and spring loaded furniture, the angle of rotation permitted bythe design (see 6.2.1.1 and 7.3.1).5.3 Rotational torque strengthWhen tested in accordance with 7.3.2, lock or latch furniture shall show no failure of any component and the leverhandles or knobs shall still operate after the test. Lever handles or knobs shall not deform permanently more than5 mm as measured at 50 mm ± 2 mm from the axis of rotation by the dial gauge.5.4 Axial strength of lock furniture or latch furniture and fixingWhen tested in accordance with 7.3.3, there shall be no failure of any component and lever handles or knobs shallstill operate after the test.After test the permanent deformation for lever handles or knobs measured at the reference point 75 mm ± 2 mmfrom the axis of rotation shall not increase by more than 2 mm.5.5 Free play and safety5.5.1 Requirement for free playThe maximum total movement measured according to 7.3.4
shall not exceed 10 mm for category of use grades 1and 2, and 6 mm for category of use grades 3 and 4, for lock or latch furniture.This requirement only applies to lever handles and knobs that will not be driven during the endurance test.5.5.2 Safety requirementsWhen the lock or latch furniture is fitted to the test block there shall be no sharp edges that can cause injury.This requirement shall typically be satisfied by edges that are broken by a chamfer of 0,5 mm maximum x 45° or bya radius of 0,5 mm minimum.In the area of rotation of the lever handle or knob, the head of any visible fastening element shall be level with orbelow the surface of the backplate or rose after fitting, except that raised head screws may stand proud of thefurniture plate by the domed height of the screw head.Any fastening element that secures the lever handle or knob to the spindle shall not project above the surface bymore than 1 mm after fitting.The design of lock or latch furniture shall ensure that after fitting it is not possible for the fingers of a user to betrapped between lever handle or knob and backplate or rose over the full range of rotation of the lever handle orknob.5.6 Free angular movement or misalignmentWhen the furniture is tested in accordance with 7.3.5, the free angular movement or misalignment shall not exceed10 mm for category of use grades 1 and 2, and 5 mm for category of use grades 3 and 4.
This requirement appliesto all furniture with either a fixed or floating spindle.
EN 1906:2002 (E)145.7 Torque of return mechanism5.7.1 GeneralWhen the furniture is tested in accordance with 7.3.6, the lock or latch furniture shall meet the appropriaterequirements detailed in 5.7.2 to 5.7.4.As sprung and unsprung lever handles and knobs differ in mechanical features of design different requirementshave to be applied to each.5.7.2 Unsprung and spring-assisted lever handlesWhen the furniture is tested in accordance with 7.3.6.1, the torque required to return the unsprung or spring-assisted lever handle back to its intended "at-rest" position shall be not greater than 0,6 Nm for category of usegrades 1 and 2 and not greater than 1,5 Nm for category of use grades 3 and 4.For spring-assisted lever handles only, the torque required to rotate the lever handle to a minimum angle of 40°from its intended "at-rest" position shall not exceed 1,5 Nm for category of use grades 1 and 2, and 2,4 Nm forcategory of use grades 3 and 4.5.7.3 Unsprung knobsWhen the furniture is tested in accordance with 7.3.6.2, the torque value in either direction shall be not greater than0,6 Nm.5.7.4 Spring-loaded lever handles or knobsWhen the furniture is tested in accordance with 7.3.6.3, the torque required to rotate the lever handles or knobsthrough a maximum of 60° 05 or through the angle of rotation permitted by the design shall not be more than 1,5Nm for category of use grades 1 and 2, and 2,4 Nm for category of use grades 3 and 4.After removal of the torque, the lever handle or knob shall return to its recorded "at-rest" position within ±4° forcategory of use grade 1, within ±2° for category of use grade 2, and within ±1° for category of use grades 3 and 4.5.8 Durability of mechanismWhen the furniture is tested in accordance with 7.3.7, there shall be no failure of any component and the leverhandle or knob shall still operate after the test.After the test, the "at-rest" position of spring-loaded door furniture when against its stops shall conform to the "at-rest" position recorded before commencing, within ±4° for category of use grade1,
within ±2° for category of usegrade 2, and within ±1° for category of use grades 3 and 4. This requirement does not apply to spring assistedlever furniture.5.9 Repeat test of axial strength of lock or latch furniture and methods of fixingAfter completion of 7.3.7, the lock or latch furniture shall be repeat tested in accordance with 7.3.8 and shall meetthe requirement of 5.4.5.10 Repeat test of free play measurementAfter completion of 7.3.8, the free play measured on the lever handle or knob not driven during the endurance testshall be repeat tested in accordance with 7.3.9 and shall meet the requirement of 5.5.1.5.11 Repeat test of measurement of free angular movement or misalignmentAfter completion of 7.3.9, the lock or latch furniture shall be repeat tested in accordance with 7.3.10 and shall meetthe requirements of 5.6.
EN 1906:2002 (E)155.12 Repeat test of torque of return mechanismAfter completion of 7.3.10, the lock or latch furniture shall be repeat tested in accordance with 7.3.11 and shallmeet the requirements of 5.7.5.13 Axial strength for safety furniture (optional)After completion of 7.3.11, furniture classified as safety furniture shall be subjected to 7.3.12. There shall be nofailure of any component and the furniture shall remain fixed to the test block. The lever handle or knob need notoperate after completion of the test.NOTEIt is recommended that only furniture complying with this requirement should be used in situations where there is ahigh risk of falling, such as for doors at the
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