SIST EN 16955:2017
(Main)Hardware for furniture - Tapered pressure tubes for self-supporting gas springs for the height adjustment of seating - Test methods and requirements for strength and durability
Hardware for furniture - Tapered pressure tubes for self-supporting gas springs for the height adjustment of seating - Test methods and requirements for strength and durability
This European Standard specifies test methods and requirements for the strength and durability of tapered pressure tubes for self-supporting gas springs for the height adjustment in seating.
Annex A (normative) contains product information.
Annex B (informative) contains a guide for choosing the correct strength class.
Möbelbauteile - Konische Druckrohre für selbsttragende Gasfedern zur Höhenverstellung von Sitzmöbeln - Prüfverfahren und Anforderungen für die Festigkeit und Dauerhaltbarkeit
Diese Europäische Norm legt Prüfverfahren und Anforderungen an die Festigkeit und Dauerhaltbarkeit von konischen Druckrohren für selbsttragende Gasfedern zur Höhenverstellung von Sitzmöbeln fest.
Anhang A (normativ) enthält Produktangeben.
Anhang B (informativ) enthält einen Leitfaden für die Auswahl der richtigen Festigkeitsklasse.
Quincaillerie d'ameublement - Tubes coniques sous pression pour vérins à gaz autoportants pour l'ajustement de la hauteur de siège - Méthodes et exigences d'essai pour la résistance et la durabilité
La présente Norme européenne spécifie les méthodes et les exigences d’essais pour la résistance et la durabilité des tubes sous pression pour vérins à gaz autoportants pour l'ajustement de la hauteur de siège.
L’annexe A (normative) comporte des informations sur le produit.
L’Annexe B (informative) comporte un guide pour choisir la classe de résistance adéquate.
Pohištveno okovje - Stožčaste tlačne cevi za samopodporne plinske vzmeti za nastavitev višine sedenja - Preskusne metode in zahteve za trdnost in trajnost
Ta evropski standard določa preskusne metode in zahteve za trdnost in trajnost stožčastih tlačnih cevi za samopodporne plinske vzmeti za nastavitev višine sedenja.
Dodatek A (normativni) vključuje informacije v zvezi z izdelkom.
Dodatek B (informativni) vključuje navodila za izbiro ustreznega razreda trdnosti.
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General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Möbelbauteile - Konische Druckrohre für selbsttragende Gasfedern zur Höhenverstellung von Sitzmöbeln - Prüfverfahren und Anforderungen für die Festigkeit und DauerhaltbarkeitQuincaillerie d'ameublement - Tubes coniques sous pression pour vérins à gaz autoportants pour l'ajustement de la hauteur de siège - Méthodes et exigences d'essai pour la résistance et la durabilitéHardware for furniture - Tapered pressure tubes for self-supporting gas springs for the height adjustment of seating - Test methods and requirements for strength and durability97.140PohištvoFurnitureICS:Ta slovenski standard je istoveten z:EN 16955:2017SIST EN 16955:2017en,fr,de01-november-2017SIST EN 16955:2017SLOVENSKI
STANDARD
SIST EN 16955:2017
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16955
April
t r s y ICS
{ yä s v r English Version
Hardware for furniture æ Tapered pressure tubes for selfæsupporting gas springs for the height adjustment of seating æ Test methods and requirements for strength and durability Quincaillerie d 5ameublement æ Tubes coniques sous pression pour vérins à gaz autoportants pour l 5ajustement de la hauteur de siège æ Méthodes et exigences d 5essai pour la résistance et la durabilité
Möbelbauteile æ Konische Druckrohre für selbsttragende Gasfedern zur Höhenverstellung von Sitzmöbeln æ Prüfmethoden und Anforderungen für die Festigkeit und Dauerhaltbarkeit This European Standard was approved by CEN on
s w February
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egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x { w wã t r s y ESIST EN 16955:2017
EN 16955:2017 (E) 2 Contents Page European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions . 4 4 Strength classes for pressure tubes . 4 5 Test apparatus. 5 5.1 Material testing machine . 5 5.2 Testing equipment for magnetic powder flaw test . 5 6 Test . 5 6.1 General . 5 6.2 Strength and durability . 5 6.2.1 Sampling . 5 6.2.2 Test procedure . 5 6.2.3 Evaluation and requirement . 7 7 Test report . 7 8 Marking of the pressure tube . 8 Annex A (normative)
Product information . 9 A.1 General . 9 A.2 Provisions . 9 A.3 Marking on the gas spring . 9 A.4 Gas spring activation. 9 A.5 Connection between pressure tube and the seat mechanism. 9 A.6 Holding cone on the seat mechanism. 10 Annex B (informative)
Guide for choosing the correct strength class . 11 B.1 General . 11 B.2 User weight . 11 B.3 Dimension u . 11 B.4 Choosing the correct gas spring . 11 B.5 Recommendations for gas springs outside specifications in Table B.1 . 12
SIST EN 16955:2017
EN 16955:2017 (E) 3 European foreword This document (EN 16955:2017) has been prepared by Technical Committee CEN/TC 207 “Furniture”, the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2017, and conflicting national standards shall be withdrawn at the latest by October 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 16955:2017
EN 16955:2017 (E) 4 1 Scope This European Standard specifies test methods and requirements for the strength and durability of tapered pressure tubes for self-supporting gas springs for the height adjustment of seating. Annex A (normative) contains product information. Annex B (informative) contains a guide for choosing the correct strength class. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 4288, Geometrical product specifications (GPS) - Surface texture: Profile method - Rules and procedures for the assessment of surface texture (ISO 4288) EN ISO 7500-1:2016, Metallic materials - Verification of static uniaxial testing machines - Part 1: Tension/compression testing machines - Verification and calibration of the force-measuring system (ISO 7500-1) EN ISO 9934-2, Non-destructive testing - Magnetic particle testing - Part 2: Detection media (ISO 9934-2) ISO 1099, Metallic materials — Fatigue testing — Axial force-controlled method 3 Terms and definitions Not applicable. 4 Strength classes for pressure tubes The determination of the strength classes is based on characteristics given in Table 1. The dimension u of the seating is given in Figure 1. Table 1 — Strength classes for pressure tubes Strength classa Alt
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