SIST-TP CEN/TR 581-4:2006

SLOVENSKI STANDARD
SIST-TP CEN/TR 581-4:2006
01-februar-2006
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Outdoor furniture - Seating and tables for camping, domestic and contract use - Part 4:
Requirements and test methods for durability under the influence of climatic conditions
Außenmöbel - Sitzmöbel und Tische für den Camping-, Wohn- und Objektbereich - Teil
4: Anforderungen und Prüfverfahren für die Dauerhaltbarkeit unter dem Einfluss von
Klimabedingungen
Mobiklier d'extérieur - Sieges et tables a usages domestique, collectif et de camping -
Partie 4 : Exigences et méthodes d'essai pour la durabilité sous l'influence des
conditions climatiques
Ta slovenski standard je istoveten z: CEN/TR 581-4:2005
ICS:
97.140 Pohištvo Furniture
97.200.30 Oprema za taborjenje in Camping equipment and
tabori camp-sites
SIST-TP CEN/TR 581-4:2006 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CEN/TR 581-4:2006

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SIST-TP CEN/TR 581-4:2006
TECHNICAL REPORT
CEN/TR 581-4
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
November 2005
ICS 97.140; 97.200.30

English Version
Outdoor furniture - Seating and tables for camping, domestic
and contract use - Part 4: Requirements and test methods for
durability under the influence of climatic conditions
Mobiklier d'extérieur - Sièges et tables à usages Außenmöbel - Sitzmöbel und Tische für den Camping-,
domestique, collectif et de camping - Partie 4 : Exigences Wohn- und Objektbereich - Teil 4: Anforderungen und
et méthodes d'essai pour la durabilité sous l'influence des Prüfverfahren für die Dauerhaltbarkeit unter dem Einfluss
conditions climatiques von Klimabedingungen
This Technical Report was approved by CEN on 30 June 2005. It has been drawn up by the Technical Committee CEN/TC 207.
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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 581-4:2005: E
worldwide for CEN national Members.

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SIST-TP CEN/TR 581-4:2006
CEN/TR 581-4:2005 (E)
Contents Page
Foreword .3
Introduction.4
1 Scope .5
2 Normative references .5
3 Terms and definitions.6
4 Levels of structural durability and their presentation.7
5 Levels of weatherability of surface finish and their presentation .7
6 Other durability features (sensible design).11
7 Graphical elements presenting weatherability .12
8 Product information (empty standard label).13
9 Product information (completed label, example).16
10 Alternative options for rows 5 to 9 .17
11 Simplified weatherability pictograms .18

Bibliography.19

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SIST-TP CEN/TR 581-4:2006
CEN/TR 581-4:2005 (E)
Foreword
This Technical Report (CEN/TR 581-4:2005) has been prepared by Technical Committee CEN/TC 207
“Furniture”, the secretariat of which is held by UNI.

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SIST-TP CEN/TR 581-4:2006
CEN/TR 581-4:2005 (E)
Introduction
This standard is part of a series of standards dealing with various aspects of outdoor furniture. Preceding
parts of that series are dealing exclusively with safety. This part covers the aspects of durability, i.e. the ability
of outdoor furniture to withstand long-term mechanical damage and damage arising from the weather. As far
as the weather has an impact not only to the appearance (surface finish) but also to safety features, there is
sufficient evidence to deem that the interior load bearing structure of plastic outdoor furniture remains
sufficiently strong as long as the outer surface shows no significant signs of cracks caused by UV- radiation.
An undamaged surface is additionally an important durability characteristic in itself. Due to different materials
and surface treatments the ability of outdoor furniture to withstand damages caused by natural weather differs.
Therefore this standard provides a range of "weatherability" levels in order to classify the surface finish
regarding its durability to weather. That characteristic is named in the following text as "weatherability". A
standardised information label is foreseen in that context in order to inform the consumer about structural
durability, recommended application and the degree of "weatherability". The level to be classified is voluntary,
it aims to allow informed choice for the customer when buying outdoor furniture.
Levels of structural durability of an outdoor furniture are set by opening the three areas applications
respectively levels of strength as set by ENV 581-2 and EN 581-3 and making them a tool to declare
enhanced durability. To meet the higher strength requirements of a following application means to prolong
durability. The durability level to be chosen is voluntary and thus matter of declaration. The three applications:
CAMPING / DOMESTIC / CONTRACT include consequently three levels of durability. Therefore the group of
experts felt, that the three levels of strength respectively fields of application constitute automatically three
levels of structural durability.
The issue of resistance to UV-radiation, i.e. of long-term strength and safety, is taken into account in this part
of the standard (5.2) by deriving structural strength and safety from an undamaged surface after artificial
weathering.
"Weatherability" for the purpose of this standard is related to the ability of outdoor furniture to maintain its
original aesthetic look respectively appearance for a prolonged time.
In accordance with usual practice in the outdoor furniture market three performance levels for "weatherability"
of surface finish were specified in order to make the mentioned ability assessable. An additional "zero level"
indicates the case where no "weatherability" in terms of unchanged appearance is claimed. In that case the
influences of weather may lead to a rapid change in the surface finish of the outdoor furniture. Subjectively
and individually that need is not to be considered as a deficiency. The declaration of the "zero level" fact was
felt to be a question of fair practice and the avoidance of misunderstandings between supplier and customer
that might otherwise cause complaints. Additionally the informative label together with the instructions for use
give advice how through care and maintenance the durability of the outdoor furniture can be prolonged.
Outdoor furniture made from wood which is inherently weather proof (as e.g. teak wood) and where the
change in appearance due to weather is rather seen as a typical and even desired "patina" than a deficiency
are intentionally exempt from the weather testing. Consumer information in this case means: Declaration of
wood within the product information label (see Clause 8)
Due to the fact that natural weather does not consider the diversity of materials from which the piece of
furniture might be made, the "weatherability" test follows a "general approach" submitting any outdoor
furniture to the same conditions of exposure. As the existing test facilities for artificial weathering do not
provide the possibility to check an entire piece of furniture, the group follows the traditional way to test
specimens. For the need to get test results in an adequate time a natural weathering test was not specified.
Furthermore the document does not include requirements for chemical or mechanical surface stresses as they
may arise from food stuff, cleaning agents, scratching, abrasion, smouldering cigarettes etc.
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SIST-TP CEN/TR 581-4:2006
CEN/TR 581-4:2005 (E)
1 Scope
This part of EN 581 specifies requirements and test methods for the determination of structural and surface
finish durability of outdoor furniture for camping, domestic and contract use for adults without regard of
materials, design/construction or manufacturing process.
Additionally this CEN Report specifies requirements covering the safety hazard which arises from the effect of
weathering (in particular UV) on plastic materials.
For the presentation of the various durability levels, a consumer information label is specified.
This CEN Report does not apply to:
 specifications on surface resistance against chemical and mechanical stresses
 outdoor furniture for severe contract use where higher requirements may be necessary
 permanently fixed outdoor furniture, street furniture
 removable upholstery and coverings
 spectator facilities
 severe contract use
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 581-1, Outdoor furniture - Seating and tables for camping, domestic and contract use — Part 1: General
safety requirements.
ENV 581-2, Outdoor furniture - Seating and tables for camping, domestic and contract use — Part 2:
Mechanical safety requirements and test methods for sampling.
EN 581-3, Outdoor furniture - Seating and tables for camping, domestic and contract use — Part 3:
Mechanical safety requirements and test methods for tables.
EN ISO 544, Welding consumables -- Technical delivery conditions for welding filler materials -- Type of
product, dimensions, tolerances and markings (ISO 544:2003)
EN ISO 4628-2, Paints and varnishes -- Evaluation of degradation of coatings -- Designation of quantity and
size of defects, and of intensity of uniform changes in appearance -- Part 2: Assessment of degree of
blistering (ISO 4628-2:2003)
EN ISO 4628-3, Paints and varnishes -- Evaluation of degradation of coatings -- Designation of quantity and
size of defects, and of intensity of uniform changes in appearance -- Part 3: Assessment of degree of rusting
(ISO 4628-3:2003)
EN ISO 4628-4, Paints and varnishes -- Evaluation of degradation of coatings -- Designation of quantity and
size of defects, and of intensity of uniform changes in appearance -- Part 4: Assessment of degree of cracking
(ISO 4628-4:2003)
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SIST-TP CEN/TR 581-4:2006
CEN/TR 581-4:2005 (E)
EN ISO 4628-5, Paints and varnishes -- Evaluation of degradation of coatings -- Designation of quantity and
size of defects, and of intensity of uniform changes in appearance -- Part 5: Assessment of degree of flaking
(ISO 4628-5:2003)
EN ISO 4892-1, Plastics -- Methods of exposure to laboratory light sources -- Part 1: General guidance (ISO
4892-1:1999)
EN ISO 4892-2, Plastics -- Methods of exposure to laboratory light sources -- Part 2: Xenon-arc sources (ISO
4892-2:1994)
3 Terms and definitions
For the purposes of this Technical Report, the following terms and definitions apply.
3.1
durability
ability of the entire outdoor furniture to last for a shorter or longer period of use in all its features
3.2
structural durability
ability to withstand stresses arising from mechanical forces and loads for shorter or longer periods of use
3.3
weatherability
ability of a material or surface treatment to withstand stresses arising from weather for shorter or longer
periods of use
3.4
severe contract use
extreme stresses beyond the applications as defined in EN 581-1
3.5
levels with regard to structural durability
structural durability level "CAMPING": outdoor furniture (seat or table) meets all requirements of ENV 581-2 or
EN 581 -3 for the application "CAMPING"
structural durability level "DOMESTIC" : outdoor furniture (seat or table) meets all requirements of ENV 581-2
or EN 581- 3 for the application "DOMESTIC"
structural durability level "CONTRACT" : outdoor furniture (seat or table) meets all requirements of ENV 581-2
or EN 581-3 for the application "CONTRACT"
3.6
levels with regard to weatherability of surface finish
for the purpose of this CEN Report there are three levels of weatherability. The levels are defined as follows:
One pictogram surface finish meets the lowest requirements of this CEN Report with
regard to artificial weathering (one share of weatherability)
Two pictograms surface finish meets the medium requirements of this CEN Report with
regard to artificial weathering (two shares of weatherability)
Three pictograms surface finish meets the highest requirements of this CEN Report with
regard to artificial weathering (three shares of weatherability)
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SIST-TP CEN/TR 581-4:2006
CEN/TR 581-4:2005 (E)
A pictogram represents a share of weatherability. Multiple pictograms represent increasing shares. The
expression is non verbal and not qualified in terms of years or use. Pictograms are always shown in their
complete range as specified in Clause 7.
4 Levels of structural durability and their presentation
4.1 Levels
Three levels of structural durability are available by this CEN Report. These levels are identical with the
applications CAMPING, DOMESTIC AND CONTRACT as specified in ENV 581-2 and EN 581-3 but they are
used here as an indication for stepwise enhanced structural durability. Thus, for the purpose of this standard,
each higher level of application can include enhanced structural durability of the respective preceding lower
applications if appropriate by design.
4.2 Determination of levels
Structural durability is to be determined in accordance with the requirements related to mechanical safety and
strength in ENV 581-2 and EN 581-3.
An outdoor furniture (seat / table) that meets:
 all requirements for CAMPING shall be only declared for structural durability and application
CAMPING
 all requirements for DOMESTIC can be declared for enhanced structural durability and
application CAMPING or for application DOMESTIC only
 all requirements for CONTRACT can be declared for enhanced structural durability and
application of DOMESTIC or application CONTRACT use only.
4.3 Declaration and presentation
Declaration and presentation of the structural durability levels shall be done in accordance with Clause 8.
5 Levels of weatherability of surface finish and their presentation
5.1 Levels
Three levels of weatherability are specified.
Their determination shall be performed in accordance with Clauses 5.2.2 and 5.2.7, their presentation in
accordance w
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