EN 12529-1998 pdf download.Castors and wheels – Castors for fumiture Castors for swivel chairs-Requirements.
This EN 12529 specifies the technical requirements, the appropñate dimensions and the requtnfl1efltS for testing.
This European Standard applies to eastors with or without bmking devices that will nonually be used on swivel chairs
2 Normative references
This European Standard Incorporates by dated or undated n’{erunce, provisions from other 1nihhcalions. These noniuttive references are cited at the appropriate iaces in the text and the pul)hcauons are hst1d hereafter. For dated references, suhe4equenl anieiwhitenls to or revisions of any of these publications apply oniy to this European Standard only when incorporated in it by amendment or revision. For undated references the btest e(ltnon of the puhheaton refemd to applies.
prEN ii5, Qf1cefiüiiituv — qtlIce wor* chub:
EN 12526:1998, ()jslars and whrWs — ‘unibn1anj, rrnn,uend’d synthois and nu11i1intjua1 dictionary. EN 12527:1998, CasIox and wheeLs — Th.ct nwlhwts and apparn tus.
3 Definitions
For tiw purpose of this European Standard, definitions and reconunended symbols of EN 12526:1998 apply
4 Dimensions and classification The chanicteristies of a castor are:
— fixing system;
– Castor type;
— (htflet).Sk)fls.
4.1 FIxing system
The fixing system includes stem and cirdip, tlueaded
stem and other fixing systems.
4.2 Castor type
Castors are classified into four types:
4.2.1 1jpeII
Castors with plain wheels are defined as 11, hard.
4.2.3 7)pe C
Cas*ors which art (4Cthc4ully (‘Ofl(hI(liV(.
NOTK These castars shall have either type H or type W wheek
They nuiy 1so onfurm to type t
4.2.4 7jpe (I
Castors for swieI chairs with a balk-in braking lUechallisni.
NOTE I Far ccrtain aiph Itbons easiors for swivel chairs require a bulk-rn braking mechanism, that is released when a person slia oil the chair Ii) ‘.vhwh the CI5tOis IUS IIUtNI, allowing eIVW 01
mobility Ui that positinit This braking iwtksi is automatically re-applied isi the iwniun leases 11w chair In present the chair rolling away uiUntenlionally.
NOTE 2 The (1C(1NI0H rvganlrng 11w 131W 01 (aSiOrs tO 1W fitted It) ssiveI duUra wili be dependent on the chair ciengri antI the type
a( floors md covering in use The caors shall have either type H or type W wlweLs They nlay also conlonn to t315’ (‘
V NOTE 3 Cwilors with permanent braking systtnls are not
r irvep(able.
Dimensions
The FIgures 1 an(I 2 show typical castor designs Talile I shows the specified castor dimensions.
5 Requirements
Testing requirements for eastors and wheels are listed
below. Test methods and apparatus are defined
In EN 12527: 19t15.
The test values detailed are the minimum required for acceptance.
5.1 Standard conditions
5.1.1 Enelronmented conditions
Tests shall be carned out at a tenhlxrature between 17 C and 23 C. During the 24 h pior to the test the sample(s) shall remain at the above temperature., in an environment with a relative hwnidlty between 40% and 70 96.
Sample(s) shall not be artificially oled during testing.
5.1.2 Test sequence
Electrical resi.stance, Impact, contact pressure, stem retention and static load tests shall each be earned out with new easttws,
Another new castor(s) is taken and the remaining tests eanied out in the sequence shown in Table 2.
The tolerance of the angular jxtion of the cor to the nnuung (hlP(iiOfl (90°) rt ±3°.
5.11.4 4crrptance rrUerW
Far eti of the lowis the horizontal tnu1i faire u’4 shdIn(4 exceed 20% oIl,
6 Conformity
The nariufaeIu’er (kebnt an nqued by a cerliflcah of (‘Ollf(H11Ut3 LIIU the (‘l4ai4 ait In llCeOflIan(’c with the nqIii eflt as staled in this (kx1111H111.
The tyw of te4ing mhüw shall be slated In the conformity documeiii
7 Marking of the product
7.1 Product marking
All the pnidtwts shall be pennanetitly marked ith a name and/ar trade mark of the manufacturer. 72 Marking of electrically conductive or antb.tatlc cairetor(I) or whcrl(K)
All products !dudl bear on thetr oiiler sinfuec a clearly visible yellow mark, and whrrt Ipjropnalr and paiib1c should include the word anti4abc.EN 12529-1998 pdf download.