EN ISO 5155:1995

SLOVENSKI STANDARD
01-december-2000
Household refrigerating appliances - Frozen food storage cabinets and food
freezers - Characteristics and test methods (ISO 5155:1995)
Household refrigerating appliances - Frozen food storage cabinets and food freezers -
Characteristics and test methods (ISO 5155:1995)
Haushalts-Kühlgeräte - Tiefkühl- und Gefriergeräte - Eigenschaften und Prüfverfahren
(ISO 5155:1995)
Appareils de réfrigération a usage ménager - Conservateurs de denrées congelées et
congélateurs - Caractéristiques et méthodes d'essai (ISO 5155:1995)
Ta slovenski standard je istoveten z: EN ISO 5155:1995
ICS:
97.040.30 Hladilni aparati za dom Domestic refrigerating
appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL
ISO
STANDARD
Second edition
1995-11-15
Household refrigerating appliances -
Frozen food storage cabinets and food
f reezers - Characteristics and test
methods
Appareils de rGfrig&ation 2 wage menager - Conservateurs de denrees
congekes et congela teurs - Caractbistiques et mkthodes d ’essai
Reference number
ISO 5155:1995(E)
ISO 5155:1995(E)
Contents
Page
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Scope
Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Definitions
Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Materials, design and manufacture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Required characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Determination of linear dimensions, volumes and areas . . . . . . . . .
General test conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Testing the airtightness of door or lid Seal(s) . . . . . . . . . . . . . . . . . . . . . . . . . 12
Testing the opening forte of door(s) or lid(s) . . . . . . . . . . . . . . . . . . . . . . . 13
11 Testing the durability of hinges and handles of door(s) and
lid(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
12 Testing the mechanical strength of shelves and baskets . . . . 14
13 Testing the storage temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
14 Water vapour condensation test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
15 Energy-consumption test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
16 Temperature rise test (if applicable) . 18
17 Freezing test (only for freezers) . 18
18 Final test report . 21
19 Designation . 22
20 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Technical and advertising literature
21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
22 Instructions for use and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Annexes
A Particular conditions for various countries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
0 ISO 1995
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, including photocopying and
microfilm, without Permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-l 211 Geneve 20 l Switzerland
Printed in Switzerland
ii
0 ISO
ISO 5155:1995(E)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*.
B Bibliography 39
. . .
Ill
0 ISO
ISO 5155:1995(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. Esch 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 non-governmental, 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.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 5155 was prepared by Technical Committee
lSO/TC 86, ßefrigeration, Subcommittee SC 5, Construction and testing
of household refrigerators.
This second edition cancels and replaces the first edition
(ISO 5155:1983), which has been technically revised.
Annexes A and B of this International Standard are for information only.

ISO 5155:1995(E)
INTERNATIONAL STANDARD 0 ISO
- Frozen food
Household refrigerating appliances
Characteristics
storage cabinets and food freezers -
and test methods
Additional safety requirements applicable to mechan-
1 Scope
ical refrigerating Systems of household frozen food
storage cabinets and food freezers are given in
This International Standard specifies the essential
ISO 5149.
characteristics for household frozen food storage
cabinets and food freezers which are wholly factory
The safety requirements applicable to gaseous and
assembled, and lays down the methods of test for the
liquid fuel heating equipment of absorption-type
checking of these characteristics.
household refrigerating Systems will form the subject
of a future International Standard.
lt does not apply to low-temperature compartments
( “one- “, “two-” and “three-Star” compartments)
2 Normative references
which are covered in ISO 7371, or freezer compart-
ments incorporated in refrigerators, which are cov-
The following Standards contain provisions which,
ered in ISO 8187.
through reference in this text, constitute provisions
of this International Standard. At the time of publi-
lt does not include refrigerating Performance charac-
cation, the editions indicated were valid. All Standards
teristics and tests, or particular definitions for ap-
are subject to revision, and Parties to agreements
pliances cooled by internal forced air circulation, which
based on this International Standard are encouraged
are the subject of ISO 8561.
to investigate the possibility of applying the most re-
cent editions of the Standards indicated below.
The tests described in this International Standard are
Members of IEC and ISO maintain registers of cur-
type tests. When it is necessary to verify the per-
rently valid International Standards.
formante of a freezer of a given type in relation to this
International Standard, all the tests described should
ISO 534:1988, Paper and board - Determination of
in principle be applied to one and the same unit.
thickness and apparent bulk density or apparent sheet
density.
These tests tan also be made individually for the
study of a particular characteristic.
ISO 817: -l 1, Re frigeran ts - Number designa tion.
Where no test method is specified, the particular re-
ISO 5 149: 1993, Mechanical refrigera ting s ys tems
quirement concerned is to be considered as a rec-
used for cooling and heating - Safety requiremen ts.
ommendation.
IEC 335-2-24:1992, Safety of household and similar
The electrical and mechanical safety requirements
electrical appliances - Part 2: Particular requiremen ts
applicable to household frozen food storage cabinets
for refrigerators, food freezers and ice-makers.
and food freezers are specified in IEC 335-2-24.
1) To be published. (Revision of ISO 817:1974)

0 ISO
ISO 5155:1995(E)
whose base is horizontal, within which the “three
3 Definitions
Star” cabinet or freezer is inscribed to include the
complete appliance except for the handle, the
For the purposes of this International Standard, the
protrusion of which, if any, is to be specified sep-
following definitions apply.
arately.
3.1 Appliances
3.3.4 Overall space required in use (doors or lids
open): Overall dimensions including the handle, in-
NOTES
creased by the space necessary for free circulation
1 From the Point of view of installation, there are various
of the cooling air when the appliance is in Service,
types of household refrigerator-freezers and their combi-
plus the space necessary to allow opening of the
nations: free-standing, built-in, etc.
means of access up to that minimum angle permitting
removal of all removable Parts such as Containers and
2 Definitions 3.1.1 and 3.2.2 are in line with those for a
shelves. (See figure 1.)
“three Star” compartment and food freezer compartment
given in ISO 8187.
-
3.1.1 household frozen food storage cabinet
r----------i
(hereinafter referred to as “three Star” cabinet): Insu-
lated cabinet of suitable volume and equipment for t
c: I
----
household use, cooled by energy-consuming means
Ir-----
c
and having one or more compartments. The storage
z
u
temperature of the compartments, measured as de-
r
t
scribed in clause 13, is not warmer than - 18 “C.
f
c
.-
f
3.1.2 household food freezer (hereinafter referred t
(1
to as freezer): Insulated cabinet of suitable volume
t:
and equipment for household use, cooled by energy-
-
consuming means and having one or more compart-
Width
ments for freezing fresh food. The freezer is suitable
for freezing, from + 25 “C to - 18 “C for class SN, N
and ST appliances, and from + 32 “C to - 18 “C for
Figure 1 - Overall space required in use (upright
class T appliances (see clause 4), a quantity of at least
4,5 kg of test packages per 100 I of its storage vol-
wpe)
ume in 24 h, and in no case less than 2 kg, under the
test conditions specified in clause 17, and is also
suitable for the storage of frozen food under storage
3.3.5 Volumes
conditions (see 3.1.1).
3.3.5.1 gross volume: The volume within the inside
3.2 “two Star” section: Part of a freezer or of a
Walls of the appliance, or of a compartment with ex-
cabinet which is not self-contained (i.e. which does
ternal door, without internal fittings, doors or lids be-
not have its own individual access door or lid), in
ing closed.
which the storage temperature (see 3.4.3), measured
as described in clause 13, is not warmer than
3.3.5.2 rated gross volume: Gross volume stated
- 12 “C. (See also 7.2.4.)
by the manufacturer.
3.3.5.3 total gross volume: Sum of the gross vol-
3.3 General definitions
umes of “three Star” cabinets and freezer compart-
ments [including any “two Star” section(s)], even if
3.3.1 top-opening type: A “three Star” cabinet or
their doors or lids are independent.
freezer whose compartment(s) is (arc) accessible
from the top.
3.3.5.4 rated total gross volume: Total gross vol-
ume stated by the manufacturer.
3.3.2 upright type: A “three Star” cabinet or freezer
whose compartment(s) is (are) accessible from the
3.3.5.5 storage volume: That part of the gross vol-
front.
ume of any compartment which remains after de-
duction of the volume of components and spaces
3.3.3 Overall dimensions (doors or lids closed):
Measurements of the rectangular parallelepiped, recognized as unusable for the storage of food, de-
0 ISO ISO 5155:1995(E)
3.4.4 freezing capacity (applicable only to
termined by the method given in 7.2, and also after
freezers): Mass of test packages whose temperature
deduction of the volume of any “two Star” section.
(taken as the instantaneous arithmetical mean tem-
Storage volume perature of all the ‘IM” packages) tan be lowered
3.3.5.6 rated storage volume:
stated by the manufacturer. from the loading temperature of + 25 “C or + 32 “C
(see 8.1 .l) to - 18 “C in 24 h under the test con-
3.3.5.7 total storage volume: Sum of the storage
ditions specified in clause 17. The freezing capacity
volumes of the appliance [including any “two Star”
is expressed in kilograms.
section(s)], comprising storage volumes of “three
Star” cabinets and freezer compartments.
3.4.5 rated freezing capacity (applicable only to
freezers): Freezing capacity stated by the manufac-
3.3.5.8 rated total storage volume: Total storage
turer.
volume stated by the manufacturer.
3.4.6 “M” package: A test package in accordance
3.3.6 Storage surface
with 8.2, of dimensions 50 mm x 100 mm
x 100 mm, fitted with a temperature Sensor at its
3.3.6.1 shelf: For the purpose of this International
geometric centre.
Standard, a shelf is any horizontal surface (shelves,
partitions, etc.) on which food tan be placed.
3.4.7 control cycle: Period between two successive
Starts, or two successive Stops, of a refrigerating
lt may be formed by one component or by compo-
System under stable operating conditions.
nents fitted side by side, which may be fixed or re-
movable.
3.4.8 stable operating conditions: In the case of
3.3.6.2 storage shelf area: Sum o f the horizontal cyclic Operation of a refrigerating System, stable op-
projections of the storage surfaces wi thin the storage erating conditions are deemed to be reached when,
volume, including door shelves and the bottom of for each of the “M” packages, the temperatures at
each compartmer It, determined in a ccordance with all corresponding Points during successive operating
7.3. cycles agree within k 0,5 K and there is no marked
trend away from the mean temperature during a pe-
3.3.6.3 rated storage shelf area: Storage shelf area
riod of about 24 h.
stated by the manufacturer.
In the case of continuous Operation of a refrigerating
System, stable operating conditions are deemed to be
3.3.7 load limit(s): Sur-face enveloping the “three
reached when, although there may be a certain vari-
Star” cabinet volume(s).
ation in temperature, the increase or decrease in the
3.3.8 load limit line(s): Permanent mark(s) indicat-
temperature of all the “M” packages does not exceed
ing the limits of “three Star” cabinet volume(s). 0,5 K during a period of 18 h.
3.4.9 percentage running time, R (apparatus with
3.4 Definitions relating to some Performance
on/off control for the refrigerating Source): Under
characteristics
given conditions of ambient temperature and of
internal storage temperature, the ratio
3.4.1 energy consumption: Consumption of a
“three Star” cabinet and freezer over a period of
R=$x 100
24 h, running under stable operating conditions at an
ambient temperature of + 25 “C (in the case of class
SN, class N and class ST appliances) or + 32 “C (in the
where
case of class T “three Star” cabinet and freezer) (see
clause 4) and measured under the conditions speci- d is the duration of the refrigerating unit
fied in clause 15. Operation during a whole number of cy-
cles;
3.4.2 rated energy consumption: Energy con-
D is the total duration of the cycles.
sumption stated by the manufacturer.
3.4.3 frozen food storage temperature, t***, t** 3.4.10 ambient temperature: Temperature in the
(as appropriate): Maximum temperature of the warm- space surrounding the appliance under test. lt is the
arithmetical average of the mean value of tempera-
est “M” package of a load placed in storage as
tures t,l and t,z, measured (see 8.1 .l) at two Points
specified in 8.5.
0 ISO
ISO 5155:1995(E)
located 350 mm from the vertical centreline of the from the evaporator and discharges it at a higher
.
side wa Ils of the appliance at 1 m above the floor Iine . pressure to the conde nser.
3.4.11 temperature rise time: Period between the
3.6.5 expansion device: Device in which the
moment when, under specified test conditions, the
pressure of the refrigerant is reduced from that of the
temperature of the warmest “M” package in the
condensed liquid to that of the evaporator.
“three star-” cabinet or freezer reaches - 18 “C to the
moment when any of the “M” packages (excluding
3.6.6 condenser: Heat exchanger in which, after
any “two star-” sections) first reaches a temperature
compression, vaporized refrigerant is liquefied by re-
of - 9 “C when the Operation of the refrigerating sys-
jecting heat to an external cooling medium.
tem is interrupted.
3.6.7 evaporator: Heat exchanger in which, after
expansion, the liquid refrigerant is vaporized by ab-
3.5 Definitions relating to the refrigerating
sorbing heat from the medium to be refrigerated.
System
3.6.8 thermostat: Device which automatically regu-
3.5.1 refrigerant: Fluid used for heat transfer in a
lates the Operation of a refrigerating System according
refrigerating System, which absorbs heat at a low
to the temperature of an evaporator or of a compart-
temperature and a low pressure of the fluid and re-
ment.
jects heat at a higher temperature and a higher
pressure of the fluid, usually involving changes of
state of the fluid.
3.7 Definitions relating to absorption-type
“three Star” cabinets or freezers
3.5.2 cooling device: Device containing the
evaporator or in thermal contact with the evaporator;
3.7.1 absorption-type “three Star” cabinet or
it may be a device with fins or may be suitably shaped
freezer: “Three star-” cabinet or freezer in which re-
for the storage of frozen food or water ice-cubes.
frigeration is effected by evaporation of a liquid
refrigerant in an evaporator, the vapour thus formed
3.6 D efiniti ons relating to compressi on-type
being then absorbed by an absorbent medium from
“three Star” cabinets or freezers
which it is subsequently expelled at a higher partial
vapour pressure by heating and then liquefied by
3.6.1 compression-type “three Star” cabinet or
cooling in a condenser.
freezer: “Three Star“ cabinet or freezer in which re-
frigeration is effected by the vaporization at low
3.7.2 absorption refrigerating System: Complete
pressure in a heat exchanger (evaporator) of a liquid
System essentially comprising a boiler, a condenser,
refrigerant, the vapour thus formed being restored to
an evaporator, an absorber, and all other Parts con-
the liquid state by mechanical compression to a higher
taining refrigerant permanently interconnected by the
pressure and subsequent cooling in another heat
manufacturer by welding, brazing or other means.
exchanger (condenser).
3.7.3 boiler: Heat exchanger in which the absorbed
3.6.2 hermetically sealed motor-driven refriger-
refrigerant is expelled from the absorbent medium by
ating compressor: Motor-compressor in which the
the application of heat.
compressor and the electric motor (or its moving Parts
at least) are enclosed in a Shell rendered gastight by
3.7.4 absorber: Component in which the absorption
welding, brazing or other means such that dismantling
of the refrigerant by an absorbent medium takes
is not normally possible after assembly. lt does not
place, the heat emitted in the process being rejected
include moving Parts outside the Shell.
to the environment.
3.6.3 hermetically sealed compressor refrigerat-
3.7.5 condenser: Heat exchanger in which the
ing System: Complete System, essentially comprising
vaporized refrigerant, after leaving the boiler, is
a hermetically sealed motor-driven compressor, a
liquefied by rejecting heat to an external cooling me-
condenser, a pressure-reducing device, an evaporator,
dium.
and all other Parts containing refrigerant permanently
interconnected by the manufacturer by welding, braz-
3.7.6 evaporator: Heat exchanger in which the liq-
ing or other means.
uid refrigerant, after a drop in its partial pressure, is
refrigerant Mechanicall y oper- vaporized by absorbing heat from the medium to be
3.6.4 compressor:
s refrigerant
ated component w hich withdraw vapour ref rigerated.
0 ISO ISO 5155:1995(E)
maintained. In particular, the insulating material shall
4 Classification
not be subject to shrinkage and shall not allow, under
normal working conditions, an excessive accumu-
With respect to the ability of appliances to operate in
lation of moisture.
extreme ambient temperatures, this International
Standard relates to the four climate classes given in
No running water shall appear externally when the
table 1.
“three Star” cabinet or freezer is subjected to the
water vapour condensation test specif ied in
Table 1 - Climate classes clause 14.
Values in degrees Celsius
When the door or lid is closed, there shall be no ab-
Range of ambient
normal ingress of air into the interior.
temperatures in which
the appliances are
A Strip of Paper shall not slide freely when door or lid
intended to be used,
Class Symbol Seals are subjected to the airtightness test specified
and for which the
in clause 9.
required storage
temperatures shall be
fulfilled (see 6.2.1)
5.4 Doors, lids and fittings
Extended
SN + IQ to +32 Hinges and handles shall be strong and resistant to
temperate
corrosjon.
+ 16 to +32
Temperate N
External doors and lids of “three star-” cabinets and
Subtropical ST +18to+38
freezers shall withstand 10 000 openings and closings
T + 18 to +43
Tropical
without deterioration which may be prejudicial to the
airtightness of the “three Star” cabinet or freezer
when subjected to the durability test of clause 11.
5 Materials, design and manufacture
The fastening System shall be such as to enable the
door or lid to be easily closed and opened. lt shall be
5.1 General
efficient and capable of maintaining its proper func-
“Three Star” cabinets and f reezers shall be con- tion.
as to en Sure adequate
structed in such a manner
For “three Star” cabinets and freezers having any
lir performante
Performance and durability in use. The
compar-tment or section with a volume equal to or
in use is checked by applyi ng a serj es of relevant
greater than 60 1, it shall be possible to open the door
tests.
or lid of that compartment from the inside with a forte
This clause defines some characteristics which are not exceeding 70 N when subjected to the test
specified in clause 10. The volume of any compart-
not tested but to which the attention of the manu-
ment or section shall be determined when all shelves,
facturer is drawn.
partitions and other internal components removable
without the aid of a tool have been removed. How-
5.2 Materials and finishes
ever, if the door or lid is provided with a mechanical
latch which tan be locked by a removable key, and
Materials used inside “three star-” cabinets and
the door or lid cannot be closed with the key turned
freezers shall not contaminate food placed in contact
to the locked position, this requirement applies only
with them nor transmit poisonous substances to food.
when the latch is unlocked, provided that the ap-
They shall be resistant to the action of moisture and
pliance is accompanied by an instruction stating that
food acids.
the key shall be kept out of the resch of children and
not kept in the vicinity of the appliance.
All surface finishes shall, for the purpose intended, be
resistant to impact, sufficiently hard, colour-fast,
smooth, easily washable, and resistant to darnage by
5.5 Shelves and Containers
moisture and by food acids.
Shelves, Containers and similar components shall
have adequate mechanical strength. Those used for
5.3 Thermal insulation and airtightness
storing food shall withstand the loading test specified
“three star-” cabinets and in clause 12 without showing such distortion that
The thermal insulation of
efficient and permanently they could no longer fulfil their intended function. In
food freezers should be
0 ISO
ISO 5155:1995(E)
6.1.2 Rated storage volume
particular, sliding or revolving components shall be
capable of their full movement when loaded.
The measured storage volume shall not be less than
Shelves, Containers and similar components which the rated storage volume by more than 3 % of the
are intended to be removable should be easily re- latter or 1 litre, whichever is the greater value.
mova ble.
6.1.3 Rated storage shelf area
5.6 Refrigerating System
The measured storage shelf area shall not be less
than the rated storage shelf area by more than 3 %
5.6.1 The mechanical Operation of “three star-”
of the latter.
cabinets or freezers should not give rise to undue
noise or Vibration.
6.2 Performance characteristics
5.6.2 The design of the condenser should be such
as to reduce to a minimum the accumulation of dust.
6.2.1 Storage temperatures
5.6.3 The evaporator shall be so designed or pro-
Under the conditions specified in clause 13, the ap-
tected so that it will not suffer any darnage during the
pliance shall be capable of maintaining, simul-
normal use of the appliance.
taneously, the required storage temperatures as
shown in table2 for the appropriate climate class.
The heat exchange surfaces shall be made of
corrosion-resistant material, or shall be finished with
Table 2 - Storage temperatures for all climate
a corrosion-proof non-poisonous coating resistant to
classes (see clause 4)
temperature changes and defrosting.
Values in degrees Celsius
Freezer “Two
5.6.4 The means of adjustment of temperature con-
Test and “three Star”
trol devices, if intended to be adjusted by the User,
Climate
ambient Star” sections
should be readily accessible, and their function shall
class
temperature cabinet (see 7.2.4)
be such as to enable the appliance to meet the re-
*** **
t t
quirements of the Performance tests.
SN +32
N +32
5.6.5 Pipes and connections to moving or resiliently
-18 -12
< <
mounted Parts should be arranged so as not to gen-
ST +38
erate noise, not to tauch nor to transmit vibrations to
T +43
other Parts, and should be so designed as to prevent
failure due to fatigue. All other pipes and connections
should be securely anchored. Where necessary, pipes
6.2.2 Freezing capacity (applicable only to freezers)
and valves should be properly insulated.
The freezing capacity measured in accordance with
5.6.6 Suitable means should be provided to prevent
clause 17 on the first appliance tested shall not be
water condensed on cold Parts from affecting the
less than the rated freezing capacity by more than
Operation of the unit or its controls, or from causing
15 % of the latter.
any other darnage to the “three Star” cabinet or
If the result of the test carried out on the first ap-
freezer and its surroundings.
pliance is less than the declared value minus 15 %,
the test shall be carried out on a further three ap-
6 Required characteristics
pliances.
The arithmetical mean of the freezing capacity values
6.1 Volumes and areas
of these three appliances shall be equal to or greater
than the declared value minus 10 %.
6.1.1 Rated gross volume
The value of the freezing capacity obtained either on
the first appliance tested or the arithmetical mean
The measured gross volume shall not be less than the
value obtained on a further three appliances shall not
rated gross volume by more than 3 % of the latter or
be less than 4 ’5 kg per 100 I of the total storage vol-
1 litre, whichever is the greater value.
0 ISO ISO 5155:1995(E)
Determination of gross volume
7.2.1
ume of the freezer (see 7.2.3) nor less than 2 kg (ir-
ne).
respective of storage volu
The gross volume shall be calculated by dividing the
.3 shall be taken into ac-
The requirements of 17.
total volume into convenient units of volumes of
count if appropriate.
geometric shapes which tan easily be measured.
When the gross volume is determined, internal fit-
6.2.3 Energy consumpt on
tings such as shelves, removable partitions, contain-
ers, evaporators, thermostats and interior light
If energy consumption is stated by the manufacturer,
housings shall be considered as not being in place.
the value measured in accordance with clause 15 on
However, the gross volume shall take into account
the first appliance tested shall not be greater than the
the exact shapes of the Walls if they contain de-
rated energy consumption by more than 15 %, of the
pressions or projections (for example, see figure 16).
latter.
If the result of the test carried out on the first ap-
pliance is greater than the declared value plus 15 %, 7.2.2 Determination of the total storage volume
the test shall be carried out on a further three ap-
pliances.
The total storage volume of the “three Star” cabinet
or freezer shall be the sum of the storage volumes
The arithmetical mean of the energy consumption
of all compartments, including “two Star” section(s),
values of these three appliances shall be equal to or
as applicable.
less than the declared value plus 10 %.
For the determination of storage volumes, the total
volume of devices and of spaces considered unusable
6.2.4 Temperature rise time
for the storage of food shall be deducted from the
gross volume calculated in accordance with 7.2.1 (see
If the temperature rise time is stated by the manu-
7.2.3).
facturer, the value measured in accordance with
clause 16 on the first appliance tested shall not be
shorter than the declared value by more than 15 %
7.2.3 Storage volume of frozen food storage
of the latter.
cabinets and freezers
If the result of the test on the first appliance is less
than the declared value minus 15 %, the test shall be
The storage volume of these appliances shall be the
carried out on a further three appliances. The arith-
gross volume minus the following (for example, see
metical mean of the periods of temperature rise of
figure 17):
these three appliances shall be equal to or greater
than the declared value minus 10 %. a) the volume of spaces situated outside any load
limit (natura1 or marked by the manufacturer);
b) the volume of spaces provided specifically for
7 Determination of linear dimensions,
making and storing ice, except in the case of ap-
volumes and areas pliances fitted with automatic icemakers, when
the volume occupied by a removable storage
The measurements are carried out on the appliance
bucket shall be included in the storage volume
as delivered and not operating.
unless it is specified in the instructions for use
that this volume is suitable for the storage of ice
only;
7.1 Determination of linear dimensions
c) the volume of spaces between the front Stack(s)
Linear dimensions shall be measured to the nearest
of the test package load (see 13.1.2) and the inner
millimetre.
vertical surface of the door or any projection from
the door where the horizontal distance between
the front face of the Stack(s) and the inner door
surface or projection exceeds 15 mm;
7.2 Determination of volumes
the volume of all fixed components within the
Volumes shall be expressed in a whole number of d
load limits;
cubic decimetres or of litres.
0 ISO
ISO 5155:1995(E)
7.2.5 Volumes of shelves and partitions (for
e) the volume of spaces which are to be kept free
examples, see figure 18)
for the good Performance of the refrigerating
System;
7.2.5.1 Thickness
f) the total volume of the removable Parts and of the
space rendered unusable by the use of the Parts
The thickness of a shelf or partition shall be the mean
which are stated by the manufacturer as necess-
distance between its outer surfaces.
ary for the proper functioning of the appliance and
Where the surface of a shelf or partition is corrugated
for meeting all the required characteristics (see
or fitted with external pipe grids, the surface shall be
clause 6 and 8.3.4) except shelves and partitions
the plane joining the outer apices of the corrugations
whose thickness is not greater than 13 mm (see
or pipes, unless the distance between adjacent
7.2.5.1);
corrugations or pipes is greater than 100 mm.
g) the storage volume of any “two Star” section(s);
7.2.5.2 Full shelves and partitions
h) any volume where the vertical clearance is less
than 52 mm [see also figure 17a)];
The volume of a full shelf or partition shall be the
product of its thickness and its depth, width or height,
any volume where it is impossible to place an
i)
whichever two of these are applicable. The depth,
“M” package of nominal dimensions.
width and height shall be those dimensions of the
enclosed space of the cabinet which apply in the
There is no equivalence between the value of
NOTE 3
plane of the shelf or partition.
the storage volume determined in accordance with the
principles mentioned above and the volume of the packages
7.2.5.3 Fractional shelves and partitions (if
loaded into the appliance for the storage and freezing tests.
The free spaces specified in the test methods could be uti- applicable)
lized in normal use and their volume should not be deducted
from the gross volume when calculating the storage vol-
The volume of a fractional shelf or partition shall be
Urne.
the product of its thickness and its depth, width or
height, whichever two of these are applicable.
The depth, width or height shall be the distances from
the adjacent surfaces of the enclosed space of the
cabinet, and normal to those surfaces, to the further
7.2.4 “Two Star” section(s) in freezers and in
edges of the shelf or partition, or to the evaporator in
“three Star” cabinets
cases where the fractional shelf or partition touches
it.
A horizontal shelf or partition, the edges of which are
“Two Star” section(s) is (arc) permitted both in the
more than 70 mm from the surfaces of the enclosed
door and in the remaining storage volume when all
space of the cabinet, shall be regarded as a fractional
the following conditions are met:
shelf or partition. A vertical partition, the edges of
which are more than 100 mm from the surfaces of
a) the “two Star” section(s) is (are) marked with the
the enclosed space of the cabinet, shall be regarded
appropriate identification Symbol;
as a fractional partition.
b) the “two Star” section(s) is (arc) separated from
the “three Star” volume by a partition, Container,
7.3 Determination of storage shelf area
or similar construction;
The area shall be expressed in Square decimetres.
c) the rated total “two Star” storage volume does
not exceed 20 % of the storage volume of the
7.3.1 Determination of the area of shelves
cabinet or 30 1, whichever is the smaller value;
guidance re- 7.3.1.1 Full shelves composed of a Single part
the instructions for use give clear
garding the “two Star” section(s);
In the case of a full shelf composed of a Single patt,
the area shall be the product of the width and depth.
the storage volume of the “two Star” section(s) is
e)
These two dimensions shall be determined as fol-
stated separately and is not included in the stor-
lows.
age volume.
0 ISO ISO 5155:1995(E)
7.3.1.7 Particular cases
- Width: mean distance measured parallel to the
surface of the shelf between the inner surfaces
The bottom of the enclosed space of the cabinet shall
of the side Walls of the enclosed space of the
be considered as a shelf.
cabinet, where this dimension does not exceed
the actual width of the shelf by more than
When an inner wall is not vertical, the dimension of
20 mm [sec figure 12 a)].
the shelf shall be measured at the mid-height be-
tween the shelf under consideration and the shelf or
- Depth: mean distance measured parallel to the
horizontal surface immediately above.
surface of the shelf (or of the bottom of the ap-
pliance) between the inner surfaces of the front
Any part of full shelves, baskets or of the bottom of
and rear Walls of the enclosed space of the cabi-
a “three Star” cabinet or freezer having less than
net, where this dimension does not exceed the
52 mm vertical clearance above, when all the shelves
actual depth of the shelf by more than 20 mm
and baskets are in Position, shall be excluded when
[see figure 12 b)]. When the door of an upright-
calculating the storage area [see figure 13 b)].
type appliance is provided with shelves, this dis-
tance shall be determined by analogy [see
CO
For an ice-making mpartment, t he minim um vertical
figures 12 c) and 12 d)].
clearance dimens shall be not less than 40
7.3.1.2 Fractional shelves
8 General test conditions
For the purpose of calculating the area of fractional
shelves, the width and depth shall be measured par- The Order of carrying out the tests need not necess-
arily follow the sequence of the clauses given in this
allel to the surface of the shelves in a similar way to
that for full shelves (see 7.3.1 .l), but taking into ac- International Standard.
count figure 12 e).
The results of the tests shall appear in a test report.
When necessary, particular information to be noted in
7.3.1.3 Cut-away shelves
this report is mentioned as a special item of the sub-
clause concerning the test.
When a shelf is tut away, the area of the portion tut
out shall be deducted. The manufacturer ’s storage Plans shall be used, pro-
vided that they are in accordance with this Inter-
national Standard (see 13.1.2).
7.3.1.4 Juxtaposed shelves
In the case of juxtaposed shelves, the depth shall be
8.1 Test room
determined in accordance with figure 12 d).
The appliance shall be set up in a test room as speci-
fied in 8.1.3.
7.3.1.5 Door shelves
The area shall be the product of the width and depth.
8.1 .l Ambient temperature
These two dimensions shall be determined by anal-
ogy with 7.3.1 .l, as follows.
Tests shall be carried out under the following con-
ditions of ambient temperature.
- Width: mean distance between the inner surfaces
of the side Walls of the door compartment or be-
a) For checking the storage temperatures:
tween the side edges of the retainer bar.
+ 32 “C for class SN and class N appliances;
- Depth: mean distance between the surface of the
door wall and the vertical plane tangential to the
+ 38 “C for class ST appliances;
inner front surface of the shelf or retainer bar
[see figure 12 c)]. + 43 “C for class T appliances.
NOTE 4 The purpose of this test is to verify the
7.3.1.6 Baskets and Containers
storage temperature limits for the whole ambient tem-
perature range for the relevant class. lt is considered
The area shall be the product of the two mean hori- that testing at the highest ambient temperature value
in the class is sufficient.
zontal dimensions [see figure 13a)].
0 ISO
ISO 5155:1995(E)
Dimensions in metres
n, tempera-
For checking the energy consumptio
b)
freezing capacity?
ture rise time and
+ 25 “C for class SN, class N and class ST ap-
pliances;
+ 32 “C for class T appliances. 4
c) For all other tests, at the temperature stated in
the test specifications.
The temperature at each measurement Point (see air circulation
3.4.10) shall be kept constant within k 0,5 K of the
nominal ambient temperature both during the periods
required for obtaining stable operating conditions and
during the tests.
The vertical partitions shall present no discontinuity.
They shall be of such a height that they extend at
The vertical ambient temperature gradient from the
least 0,3 m above the top of the appliance.
platform specified in 8.1.3 to a height of 2 m shall not
exceed 2 K/m.
The appliance shall be so placed or shielded as to
prevent direct radiation to or from the space cooling
or heating equipment in the test room, and shall be
8.1.2 Humidity
placed far enough away from all other objects in the
test room to eliminate any possibility of any Point in
Unless otherwise specified, relative humidity shall be
the space in which it is situated being at a tempera-
kept between 45 % and 75 %.
ture other than ambient.
Air circulation in the test room shall be such that the
specified ambient temperatures are obtained within
8.1.3 Installation of appliances
the limits of the specified tolerantes. The appliance
Esch appliance shall be placed on a wooden solid-top under test shall be shielded from any air currents of
velocity above 0,25 m/s.
platform, painted dull black, open for free air circu-
lation under the platform. The top of the platform shall
The air circulation in the test room shall not interfere
be 0,3 m above the test room floor and shall extend
with the normal air circulation created by the ap-
at least 0,3 m, but not more than 0,6 m, beyond all
pliance.
sides of the appliance, except at the rear where it
shall extend to the vertical partition.
Appliances intended to be built-in shall be built in ac-
cording to the manufacturer ’s instructions.
Circulation of air around the appliance shall be re-
stricted by surrounding the appliance by three vertical
Built-in appliances intended to be combined with ap-
partitions, painted dull black, arranged as follows:
pliances other than refrigerating appliances shall be
subjected to the tests while they are combined, but
a) one of the partitions shall be placed parallel to the
with the other appliance not functioning.
rear of the appliance, against the Stops or at the
distance specified by the manufacturer in con-
8.2 Test packages
nection with the required Overall space;
When tests are carried out with a loaded appliance,
b) the two other partitions shall be parallel to the
test packages in the form of right parallelepipeds shall
sides of the cabinet, and shall be fixed on the
be used.
platform 0,3 m from the sides of the cabinet; they
shall be 0,3 m wide.
8.2.1 Dimensions and tolerantes
The whole partition structure shall have the form and
dimensions shown in figure 2.
Their size, prio r to freezing, an d their mass, packaging
included, shall be as specified in tabl e3.
2) See annex A for particular conditions.
0 ISO ISO 5155:1995(E)
0,8 g of 6-chlore-m-cresol.
Table 3 - Dimensions and mass of test
In case of disput e, the first test package compo-
packages
sition shall be used as reference test package.
Dimensions Mass
b) A wrapper, consisting of a sheet of plastic4) or any
mm
Cl
other suitable material of such a nature that ex-
25x50~100 Change of moisture with the ambient medi
...