ISO/FDIS 7170

Furniture -- Storage units -- Test methods for the determination of strength, durability and stability

Ameublement -- Éléments de rangement -- Méthodes d'essai pour la détermination de la résistance, de la durabilité et de la stabilité

General Information

• Status: Published
• ICS: 97.140 - Furniture
• Technical Committee: ISO/TC 136 - Furniture
• Drafting Committee: ISO/TC 136/WG 3 - Storage units - Test methods for determination of strength and durability
• Current Stage: 5020 - FDIS ballot initiated: 2 months. Proof sent to secretariat
• Start Date: 21-May-2021
• Completion Date: 21-May-2021

RELATIONS

• Revised: ISO 7170:2005 - Furniture -- Storage units -- Determination of strength and durability
• Effective Date: 23-Apr-2020

Standards Content (sample)

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 7170
ISO/TC 136
Furniture — Storage units — Test
Secretariat: UNI
methods for the determination of
Voting begins on:
2021­05­21 strength, durability and stability
Voting terminates on:
2021­07­16
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/FDIS 7170:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. ISO 2021
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ISO/FDIS 7170:2021(E)
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© ISO 2021

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ii © ISO 2021 – All rights reserved
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ISO/FDIS 7170:2021(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 General test conditions .................................................................................................................................................................................. 4

4.1 Preliminary preparation ................................................................................................................................................................. 4

4.2 Application of forces .......................................................................................................................................................................... 5

4.3 Tolerances ................................................................................................................................................................................................... 5

4.4 Prevention of movement during test ................................................................................................................................... 5

4.5 Loading .......................................................................................................................................................................................................... 6

5 Test equipment and apparatus .............................................................................................................................................................. 6

6 Test procedures for non-movable parts ....................................................................................................................................... 8

6.1 Shelves ............................................................................................................................................................................................................ 8

6.1.1 General...................................................................................................................................................................................... 8

6.1.2 Shelf retention test — Horizontal outward force ................................................................................ 8

6.1.3 Shelf retention test — Vertical downward force .................................................................................. 8

6.1.4 Deflection of shelves ..................................................................................................................................................... 9

6.1.5 Strength of shelf supports ........................................................................................................................................ 9

6.2 Tops and bottoms ..............................................................................................................................................................................10

6.2.1 Sustained load test for tops and bottoms ................................................................................................10

6.2.2 Static load test for tops and bottoms ...........................................................................................................11

6.3 Clothes rails and supports..........................................................................................................................................................11

6.3.1 Strength of supports ..................................................................................................................................................11

6.3.2 Strength of clothes rails ..........................................................................................................................................12

6.4 Strength of the structure .............................................................................................................................................................13

6.4.1 Test for structure, underframe and/or legs ...........................................................................................13

6.4.2 Drop test ...............................................................................................................................................................................15

6.4.3 Tests for units with castors or wheels ........................................................................................................15

7 Test procedures for movable parts ................................................................................................................................................16

7.1 Pivoted doors .........................................................................................................................................................................................16

7.1.1 General...................................................................................................................................................................................16

7.1.2 Strength of pivoted doors — Vertical load .............................................................................................16

7.1.3 Strength of pivoted doors — Horizontal force ....................................................................................16

7.1.4 Slam shut of pivoted doors ...................................................................................................................................17

7.1.5 Durability of pivoted doors ..................................................................................................................................18

7.2 Sliding doors and horizontal roll fronts .........................................................................................................................19

7.2.1 General...................................................................................................................................................................................19

7.2.2 Slam shut/open of sliding doors and horizontal roll fronts ....................................................19

7.2.3 Durability of sliding doors and horizontal roll fronts ...................................................................20

7.3 Flaps ..............................................................................................................................................................................................................20

7.3.1 General...................................................................................................................................................................................20

7.3.2 Strength of bottom-hinged flaps .....................................................................................................................20

7.3.3 Durability of flaps .........................................................................................................................................................21

7.3.4 Drop test for horizontally top-hinged doors/flaps ..........................................................................21

7.3.5 Vertical downward static load of top hinged flaps ..........................................................................22

7.4 Vertical roll fronts ..............................................................................................................................................................................22

7.4.1 General...................................................................................................................................................................................22

7.4.2 Slam shut/open of vertical roll fronts ........................................................................................................22

7.4.3 Durability of vertical roll fronts .......................................................................................................................23

7.5 Extension elements ..........................................................................................................................................................................23

7.5.1 General...................................................................................................................................................................................23

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ISO/FDIS 7170:2021(E)

7.5.2 Strength of extension elements ........................................................................................................................23

7.5.3 Durability of extension elements ....................................................................................................................24

7.5.4 Slam shut of extension elements.....................................................................................................................26

7.5.5 Slam open of extension elements ...................................................................................................................26

7.5.6 Strength of bottoms in extension elements ...........................................................................................27

7.5.7 Interlock test ....................................................................................................................................................................27

7.6 Locking and latching mechanism test ..............................................................................................................................27

7.6.1 General...................................................................................................................................................................................27

7.6.2 Strength test for locking and latching mechanisms for extension elements ............28

7.6.3 Locking and latching mechanisms for doors, flaps and roll fronts ....................................28

7.6.4 Locking and latching mechanism durability test ..............................................................................28

8 Trays ...............................................................................................................................................................................................................................28

8.1 General ........................................................................................................................................................................................................28

8.2 Sustained load test for trays .....................................................................................................................................................28

8.3 Drop test for trays .............................................................................................................................................................................28

9 Strength of coat hooks .................................................................................................................................................................................29

10 Units mounted to the building or other structure ..........................................................................................................29

10.1 Units not supported by the floor ..........................................................................................................................................29

10.1.1 General...................................................................................................................................................................................29

10.1.2 Movable parts, shelf supports, tops and bottoms .............................................................................30

10.1.3 Static load ............................................................................................................................................................................30

10.1.4 Dislodgement test ........................................................................................................................................................31

10.1.5 Sideward detachment test ....................................................................................................................................31

10.2 Units supported by the floor ....................................................................................................................................................32

11 Stability tests .........................................................................................................................................................................................................32

11.1 General ........................................................................................................................................................................................................32

11.2 Doors, extension elements and flaps closed, all storage units unloaded ...........................................33

11.2.1 Units that are, or can be adjusted to, a height of 1 000 mm or less ..................................33

11.2.2 Units that are, or can be adjusted to, a height of more than 1 000 mm .........................33

11.3 Opening doors, extension elements and flaps, all storage units unloaded ......................................34

11.4 Doors, extension elements and flaps opened and unlocked .........................................................................35

11.4.1 All storage areas unloaded and all doors, extension elements and flaps open .......35

11.4.2 All storage areas unloaded with overturning load ..........................................................................36

11.4.3 All storage areas loaded with overturning load .................................................................................37

11.4.4 Storage areas partly loaded .................................................................................................................................38

11.5 Doors, extension elements and flaps closed and locked, all storage units loaded.....................39

11.6 Dynamic stability test for units with castors .............................................................................................................40

11.7 Strength test for anti­overturning device .....................................................................................................................41

11.8 Additional stability test methods for TV furniture ...............................................................................................42

11.8.1 Determination of TV template ..........................................................................................................................42

11.8.2 Stability of TV-furniture with one door and/or extension element opened .............42

11.8.3 Stability of TV furniture with doors and extension elements closed —

Storage areas unloaded ...........................................................................................................................................42

12 Test report ................................................................................................................................................................................................................43

Annex A (informative) Guidance for the choice of loads, cycles, etc. for storage furniture

strength, durability and stability tests .......................................................................................................................................44

Annex B (informative) Suggested loads, cycles and forces for strength, durability and

stability tests for storage furniture for domestic use .................................................................................................47

Annex C (informative) Rationale for selected test methods ......................................................................................................52

Annex D (normative) Apparatus for slam-shut/open test of extension elements .............................................59

iv © ISO 2021 – All rights reserved
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ISO/FDIS 7170:2021(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non­governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 136, Furniture.

This third edition cancels and replaces the second edition (ISO 7170:2005), which has been technically

revised, and ISO 7171:2019, which has been merged into this document.
The main changes compared to the previous edition are as follows:
— addition of the Introduction;
— normative reference ISO 48­5:2018 replaces ISO 7619­2:2010;

— deletion of the pneumatic slamming apparatus for slam open and slam shut tests of extension

elements;

— introduction of sideward detachment tests for units mounted to the building or other structure;

— introduction of a stability test for units with doors, extension elements and flaps, opened and

unlocked with storage areas partly loaded;

— introduction of definitions, figures and additional an stability test method for units intended to

support a TV­set;

— revision of the guidance for the choice of loads, cycles, etc. for strength, durability and stability

testing in Annex A;
— loads and forces for different applications have been merged in Annex B.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
© ISO 2021 – All rights reserved v
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ISO/FDIS 7170:2021(E)
Introduction

This document has been developed with the objective of promoting relevant test methods for

determining the strength, durability and stability of storage furniture, simulating normal functional

use, as well as foreseeable misuse, that might reasonably be expected to occur. The tests are designed to

evaluate properties without regard to materials, design/construction or manufacturing processes and

intended to demonstrate the ability of the item to give satisfactory service in its intended environment.

The test results are only valid for the unit/component tested. These results can be used to represent

the performance of production models prior to use, provided that the tested unit/component is

representative of the production model. Only when properly justified, they can be used for failure

analysis of a unit that has been in use.

The strength and durability tests do not assess the structure of the building, e.g. the strength of wall

hanging cabinets includes only the cabinet and the parts used for the attachment. The wall and the

attachment into the wall are not included.
Assessment of ageing and environmental degradation is not included.
vi © ISO 2021 – All rights reserved
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FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 7170:2021(E)
Furniture — Storage units — Test methods for the
determination of strength, durability and stability
1 Scope

This document specifies test methods for determining the strength, durability and stability of storage

units, when fully assembled prior to use, including their movable and non-movable parts.

Acceptance criteria for the strength, durability and stability of the storage furniture is not specified by

the test methods. Instead, suggested loads, cycles and forces are provided in Annex B, depending on the

applicability of the furniture.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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.

ISO 48­5:2018, Rubber, vulcanized or thermoplastic — Determination of hardness — Part 5: Indentation

hardness by IRHD pocket meter method
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
adjustable friction stay

component (3.7) to hold open a door or a flap (3.13) with a feature that keeps the door or flap open

without any further assistance at a multitude of positions
3.2
bracket
rigid device to prevent overturning

Note 1 to entry: Normally made of metal; not a flexible device such as strap or cable tie.

3.3
built-in stop

device of the component (3.7) that limits the travel of extension element (3.12) or doors

3.4
catch device

device that keeps or pulls a component (3.7) in place but does not require a second action in order to

release it
EXAMPLE A magnetic catch or a self­closing­mechanism.
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ISO/FDIS 7170:2021(E)
3.5
clear height

unobstructed height above the top of the bottom surface, or the structure of the unit (3.27)

Note 1 to entry: For example, the top of the extension element (3.12) below and the lower edge of the extension

element above (see Figure 1).
Key
1 structure of the unit
2 extension element
H clear height
Figure 1 — Clear height
3.6
coat hook
component (3.7) to support an outer garment
3.7
component

part of a unit (3.27) including hardware, e.g. extension element (3.12), door and flap (3.13)

3.8
configuration
arrangement of components (3.7) in a particular figure, form or combination
3.9
damper mechanism
mechanism that gently brings the component (3.7) to a stop
3.10
distance device
device intended to keep an item of wall­mounted furniture vertical
3.11
excessive heating
result of repeated friction such that a component (3.7) is adversely compromised
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ISO/FDIS 7170:2021(E)
3.12
extension element
component (3.7) that can be pulled out and pushed in
EXAMPLE Drawers, suspended pocket files, keyboard tray (3.25).
3.13
flap
horizontally hinged door, which opens upwards or downwards
3.14
free-standing unit
unit (3.27) not intended to be attached to a load bearing structure
3.15
height adjustment device

adjustable device intended to enable height adjustment of a unit (3.27), such as a work surface

3.16
interlock

device that restrains the opening of more than one extension element (3.12) at a time

3.17
latching mechanism

mechanism that retains an extension element (3.12) or a door in the closed position and that requires a

second action to release it and can require a key or a combination in order to activate it

3.18
levelling device

adjustable device intended to keep an item of furniture horizontal with a limitation of 40 mm of vertical

range
EXAMPLE Adjustable feet or similar.
3.19
locking mechanism

mechanism that limits access to the interior of a unit (3.27) or a storage element and that requires a key

or a combination in order to activate it or to make it possible to activate it
3.20
overturn

condition where an unrestricted storage unit (3.27) does not return to its upright normal position

3.21
runners

component (3.7) that is used to facilitate the movement of an extension element (3.12)

Note 1 to entry: Includes smooth surfaces, roller and ball bearing slides.
3.22
self-locking stay

component (3.7) to hold open a door or a flap (3.13) with a feature that keeps the door or flap open

without any further assistance
3.23
structural member
component (3.7) to enhance the strength of the assembled unit (3.27)
3.24
suspended filing pockets

extension element (3.12) usually without a bottom such that contents are suspended by a frame

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ISO/FDIS 7170:2021(E)
3.25
tray

storage element that is designed, under normal use, to be removed from the storage unit (3.27) and

used independently
3.26
TV-furniture

unit (3.27) intended to, or marketed for, supporting a monitor, TV set or similar item

3.27
unit
complete furniture intended to be tested

EXAMPLE Bookcases, wardrobes, cabinets, wall-mounted or exterior-mounted elements, free-standing and

mobile pedestals, lateral and vertical files.
3.28
wall attachment device

device including the component that is attached to the cabinet and the component that is attached to

the wall

Note 1 to entry: A component that is attached to the cabinet is, for example, a suspension bracket (3.2).

Note 2 to entry: A component that is attached to the wall is, for example, a hook, a rail.

3.29
worst case

condition most likely to cause failure, e.g. the configuration (3.8) of a unit (3.27) most likely to cause it

to overturn (3.20)
4 General test conditions
4.1 Preliminary preparation

The unit(s)/component(s) shall be tested as delivered. The unit(s)/component(s) shall be assembled

and/or configured according to the instructions supplied. Unless otherwise stated, the most adverse

configuration (3.8) shall be used for each test. If mounting or assembly instructions are not supplied,

the mounting or assembly method shall be recorded in the test report. Fittings sh

...