EN 12825:2001

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Dvignjeni podiDoppelbödenPlanchers surélevésRaised access floors91.060.30Stropi. Tla. StopniceCeilings. Floors. StairsICS:Ta slovenski standard je istoveten z:EN 12825:2001SIST EN 12825:2001en01-december-2001SIST EN 12825:2001SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12825August 2001ICS 91.060.30English versionRaised access floorsPlanchers surélevésDoppelbödenThis European Standard was approved by CEN on 21 July 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, 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© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12825:2001 ESIST EN 12825:2001

96Evaluation of conformity337Marking, labelling and packaging34BibliographyForewordThis European Standard has been prepared by Technical Committee CEN/TC 323 "RaisedAccess Floors", the secretariat of which is held by SNV.This European Standard shall be given the status of a national standard, either by publica-tion of an identical text or by endorsement, at the latest by February 2002, and conflictingnational standards shall be withdrawn at the latest by February 2002.This European Standard has been prepared under a mandate given to CEN by the Euro-pean Commission and the European Free Trade Association, and supports essential re-quirements of EU Directive(s).According to the CEN/CENELEC Internal Regulations, the national standards organizationsof the following countries are bound to implement this European Standard: Austria, Belgium,Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Lux-embourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United King-dom.SIST EN 12825:2001

sub floor level to the specified finished floorlevel3.10 indentationmovement of the indentor into the specimen surface3.11 length of sideoverall dimension of any side of a panel3.12 manufacturer’s stated panel sizedimension to which the tolerances are applied3.13 nominal panel sizetheoretical dimension used for commercial description3.14 panelload bearing horizontal component of the access floor. It is supported by the under structure(e.g. pedestals and stringers)3.15 pedestalvertical component or part of the element which transmits the loading to the subfloor3.16 plenumavailable space between the underside of the panels of the access floor and the sub-floor3.17 plenum heightdistance between the highest point of the sub floor and the lowest point of the underside ofthe access floor3.18 raised access floorfactory made flooring system comprising panels supported on understructure of pedestals,and/or stringers or other components as applicable providing a load bearing structure for thefitting out of a building3.19 safety factorthe factor by which the ultimate load is divided to establish the working loadSIST EN 12825:2001

installed raised access floor3.23 working loadload given by dividing the ultimate load by the safety factor (ultimate load is sometimescalled failure load and working load is sometimes called design load as well as nominal load)4 Requirements4.1 General and load classesThe ultimate load is the main criterion for classification.All other load bearing characteristics are related to the ultimate load.Raised access floors are classified according to the ultimate load as given in Table 1.Table 1 - Classes of elements ClassUltimate loadkN142638495106124.2 Load bearing capacity4.2.1 GeneralThe raised access floor shall be designed and manufactured in such a way that it providesmechanical resistance and stability and that the loading that is liable to act upon it during itsintended use will not lead to deformation or collapse.4.2.2 Static loading requirementsThe element when subjected to the test procedures as given in 5.2.1 shall meet the followingcriteria:SIST EN 12825:2001

Before the element collapses it shall have withstood the relevant ultimate load forits class as given in Table 1;b)
When the load applied is equivalent to the working load which is the ultimate loaddivided by the safety factor, the measured deflection shall not exceed the statedvalue in accordance to Table 2.Two classes of the safety factor are specified: 2,0 and 3,0.Table 2 - Classes of deflectionClassMaximum deflection, mmA2,5B 3,0C 4,04.2.3
Pedestal vertical load bearing capacityThe understructure has to support 4 times the working load of the system tested.The pedestal may not become distorted or damaged.Tests shall be carried out in accordance with 5.2.2.4.2.4 Permanent deformation after loadingAfter the application for 30 min of a test load equivalent of the working load at the weakestpoint of the element, the residual deflection 5 min after the removal of the load shall not ex-ceed 0,5 mm when testing according to 5.4.4.3 Dynamic loading requirements4.3.1
Absorption of hard body impactsWhere required, the element shall sustain the hard body impact test as described in 5.5.1.This test shall not cause any parts of the element to collapse, requiring that the test result bestated only if the test has been performed.4.3.2
Absorption of soft body impactsWhere required, the element shall sustain the soft body impact test as described in 5.5.2.This test shall not cause any parts of the element to collapse, requiring that the test result bestated only if the test has been performed.4.4 Dimensional deviationsThe panels of a raised access floor shall be manufactured within dimensions which enabletheir interchangeability.Deviations of dimensions shall not exceed the values given in Table 3 for one of the appro-priate classes.SIST EN 12825:2001

1 See Commission Decision 96/603/ECSIST EN 12825:2001

5) ° Cand (55
10) % relative humidity.If adhesive is used to fix the pedestals the tests in 5.2, 5.3, 5.4 and 5.5 shall begin as deter-mined by the manufacturer but not before 48 hours have elapsed.Test specimen shall be taken at random from the actual production and shall be representa-tive of actual or intended day to day production.The test report shall contain the following minimum information for all tests:1)
Name and address of testing body;2) Name and address of the applicant;3) Date of submittal of samples or sampling of test specimens;4) Date of test;5) Environmental conditions;6) Description and construction details (include grade and classification details) of materialssubmitted for tests;7) Accuracy and precision of test equipment used;8) Numeric results of measurement of tests as stipulated and the classes or grade reached;9) Statement of PASS or FAIL for hard body and soft body impact test, if relevant, and anydamage which occurred;10) Signature and designation of person responsible.SIST EN 12825:2001

1 %.A graph shall be produced showing deflection against the applied test load.The deflections at the points where the test load equals the specified working load and fail-ure load shall be specifically marked on the graph. The maximum deflection permitted at theworking load shall be indicated on the graph.SIST EN 12825:2001

- Load test on element5.3.1 Pedestal vertical load test5.3.1.1 SamplingAll parts forming a pedestal shall be taken at random from the actual production.5.3.1.2 Preparation and preservation of samples and test piecesSee 5.15.3.1.3 PrincipleA load is applied to determine whether the pedestals meet the requirement defined in 4.2.3.5.3.1.4 ApparatusA test apparatus in accordance with Figure 2 shall be used.5.3.1.5 ProcedureThe pedestal base shall be rigidly fastened to a rigid substratum within the test apparatus.Instead of fastening by adhesive or mechanical fixing an appropriate clamping device maybe used providing its adequacy is proven by comparative tests and checked at regular inter-vals.SIST EN 12825:2001
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