EN 12674-3:2004
(Main)Roll containers - Part 3: Test methods
Roll containers - Part 3: Test methods
This document covers the load testing of roll containers and dollies for safety, fitness for purpose and the development of new designs.
All designs, styles and derived forms of roll containers and dollies intended for fitment of sides or not are subject to certain of the tests in Part 3, as stipulated in Part 4. Also included in the scope are roll containers partly made from non-metallic materials, such as plastic or plywood.
Dollies are subject to a more limited range of these tests as stipulated in Part 4.
Rollbehälter - Teil 3: Prüfverfahren
Conteneurs à roulettes - Partie 3: Méthodes d'essai
Le présent document traite des essais de charge des conteneurs à roulettes et plateaux roulants pour déterminer la sécurité, l'aptitude à l'emploi et le développement de nouveaux modèles.
Tous les modèles, types et versions dérivées de conteneurs à roulettes et plateaux roulants destinés à être équipés ou non de ridelles sont soumis à certains essais de la partie 3, comme le stipule la partie 4. Sont également visés les conteneurs à roulettes qui sont partiellement constitués de matériaux non métalliques, tels que plastiques ou contreplaqué.
Les plateaux roulants ne sont soumis qu'à une partie limitée de ces essais, comme le stipule la partie 4.
Kontejnerji s kolesi - 3. del: Preskusne metode
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kontejnerji s kolesi - 3. del: Preskusne metodeRollbehälter - Teil 3: PrüfverfahrenConteneurs a roulettes - Partie 3: Méthodes d'essaiRoll containers - Part 3: Test methods55.180.10General purpose containersICS:Ta slovenski standard je istoveten z:EN 12674-3:2004SIST EN 12674-3:2005en,fr,de01-marec-2005SIST EN 12674-3:2005SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12674-3October 2004ICS 55.180.10English versionRoll containers - Part 3: Test methodsConteneurs à roulettes - Partie 3: Méthodes d'essaiRollbehälter - Teil 3: PrüfverfahrenThis European Standard was approved by CEN on 16 August 2004.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 Central Secretariat 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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12674-3:2004: ESIST EN 12674-3:2005
Side frame mid-height impact tests.20
Roll containers - Part 2: General design and safety principles
Roll containers - Part 4: Performance requirements According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
They comprise apparatus fitted with wheels and/or castors.
For roll containers the superstructure comprises two or more frames which provide retention for items requiring transportation and/or distribution. Dollies can be supplied in a variety of materials and additionally roll containers are supplied in four main styles.
One of these styles, the Nesting style, is further sub-divided into five derived forms and the Demountable style is sub-divided into 2 derived forms.
Part 1 of this document, Terminology, gives details of how these styles differ.
Part 2 - General design and safety principles gives methods of measuring working dimensions and aspects of design that manufacturers need to be aware of.
The test methods given in this Part 3 are supported by performance levels in Part 4 which take account of the normal static and dynamic loads applied in use. This Part 3 of the document sub-divides into 3 classes of tests.
Clause 4.2 contains the main safety and performance tests for complete roll containers or dollies.
Clause 4.3 contains tests on component parts of roll containers and dollies and is intended for quality control purposes. Annex A (informative) covers tests requiring further industry development, which are not yet sufficiently defined to go into the normative section.
In general the earlier tests are intended to be the most stringent in order to achieve early failure in inadequate roll container or dolly designs to cut down on time of design and development.
As these tests are type tests and not proof tests, untested roll containers are used for each test rather than risking accumulated damage affecting subsequent results.
This will result in a better understanding of weak design features and the exact mechanical cause of each failure.
There is no intention in this document to test for the effects of long-term roll container or dolly wear by using extended or cyclic repeat tests other than the tests in 4.3 on steel welds where the principal objective is to examine fatigue. SIST EN 12674-3:2005
angle measured against the major horizontal axis of the length or width (as defined in Part 2) of the roll container and the line of tilt (shown as . in Figure 2) 3.3 angle of inclination
angle in a vertical plane, normal to the line of tilt, at which the roll container becomes unstable and topples sideways (shown as
in Figures 1a and 1b) 3.4 optimum castor start position orientation with the castor arranged in the normal trailing (running) position 3.5
transverse 90 castor start position orientation with the castor arranged at 90 degrees to the trailing (running) position NOTE This will be pointing outwards on the right hand side of a roll container, inwards on the left hand side of a roll container 3.6 adverse castor start position orientation with the castor arranged at 180 degrees to the trailing (running) position 3.7
transverse 270 castor start position orientation with the castor arranged at 270 degrees to the trailing (running) position SIST EN 12674-3:2005
castor swivel axis vertical axis around which the castor fork rotates
[extracted from EN 12526 : 1998, Castors and wheels - Vocabulary, recommended symbols and multilingual dictionary] NOTE The convention for positive angular rotation is an anti-clockwise direction when viewed from above the swivel axis. 3.9 geometric centre centre point in plan elevation generated by an imaginary line from the opposite internal corners of the base 3.10 vertical axis central vertical axis of a roll container or dolly passing through the geometric centre 4. Test methods 4.1 General Each test shall be carried out on a new undamaged roll container.
All tests, except where required otherwise in Part 4, shall be conducted at (20 to 25) °C.
Tilting angles shall be measured to an accuracy of 0,5 degrees, test loads to an accuracy of within 3 % of maximum load applied and deflections or distortions to an accuracy of ± 0,5 mm. The tolerance on dimension of fixed stops and hazards shall be ± 2 mm and the positioning of test loads needed for testing, load applicators and spreader bars shall be to an accuracy of ± 5 mm. Unless otherwise stated here, or in Part 4, all applied test loads are based on a roll container or dolly payload of 250 kg. Where loads are applied to specimens, the minimum deflection readings shall be taken as follows: test commencement at zero load, full load, zero load immediately after the loading cycle has terminated. 4.2 Tests on roll containers - complete assembled 4.2.1 Stability test baWßFbaWßF Figure 1a —Stability test – right
Figure 1b Stability test – forward SIST EN 12674-3:2005
To determine the maximum angle of tilt the roll container or dolly can resist without toppling, when unloaded in 4 directions then loaded in 4 directions, each using the most detrimental castor positions. These directions are - right tilt ‘R’, left tilt ‘L’, forward tilt ‘F’ and backward tilt ‘B’
4.2.1.2 Apparatus:
A hinged, rigid, flat supporting table capable of slow inclination as shown in Figure 1 with the following: a) anti-slide load support panel shown as a in Figure 1a; b) restraint bar (shown as b in Figures 1a,1b) 40mm high running full length of table and parallel with the hinge; c) inclinometer (shown as c in Figure 1a) for measurement of angle of inclination ; d) dummy load (shown as W in Figures 1a,1b) with centre of gravity G on the vertical axis between 230 mm and 270 mm above the table surface. 4.2.1.3 Procedure (unloaded) Set the table within 0,3° of level in both horizontal axes. For each of the four test modes set the castor in the maximum detrimental position (castor inwards and normal to stop b) in the direction of arrow R in Figure 2.
Arrange a suitable safety restraint cord to prevent the specimen toppling to the floor. Raise the table at a rate of between 0,3 degree/sec and 1,0 degree/sec thereby forcing the roll container against the edge of restraint stop ‘b’ shown as XX in Figure 2 until the specimen commences to topple. Record this as angle of inclination .
Repeat the test to determine
in each of 4 directions as below. R Right L Left F Forward B Back 4.2.1.4 Procedure (loaded) Set up the specimen as above but position a dummy load W equal to 0,2 x payload, centrally on the vertical axis at h = 250 mm. Secure the load to the specimen floor by bolts or straps.
Where the roll container is designed for hanging garments, the dummy load shall be suspended from the garment hanging rail with its centre of gravity at a distance of 0,5 metre. NOTE Although each roll container will have four stability inclination angles associated with it, the angles L and R may, with some designs be equal.
Diagonal resistance test 4.2.2.1
Purpose To simulate handling forces across corners of roll containers causing diagonal deformation.
To measure the liability to local damage in sockets of demountable designs.
This progressive static load test ensures a measurable result and allows determination of assembled unit stiffness and strength. 4.2.2.2
Apparatus a) Reaction frame shown in Figure 3 mounted horizontally with load applicator at F. b) Method to measure diagonal distance d1
4.2.2.3
Procedure Stand the empty roll container or dolly with castors/wheels touching the floor.
Gradually apply load F over a period of (15 to 30) seconds, record the resulting local distortion and overall distortion by continuously measuring d1 and plotting against F.
Continue until d1 equals 0,99 of original diagonal length and measure the load.
Reduce the load to zero and measure the residual distortion dR where dR is the difference between d1 at start and d1 at termination. Turn the specimen and repeat the loading cycle on the second diagonal where construction is not identical. SIST EN 12674-3:2005
The length of the supports and central load bar W shall be sufficient to cover the full extent of the main elements of the side structure. 4.2.3.3 Procedure Apply without shock a steadily increasing or multiple step incremental load to the centre of the side frame to make up load W, where W = 0,5 x payload.
Hold for duration t, measure the resulting deflection d1, reduce the load to zero and measure the residual deflection dR.
NOTE This test is not an infill test nor intended to test the mounting point of the side frame or its strength at that point, that is the purpose of tests 4.3.3 and 4.2.4 respectively. SIST EN 12674-3:2005
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.