EN ISO 15502:2005

SLOVENSKI STANDARD
01-julij-2006
*RVSRGLQMVNLKODGLOQLLQ]DPU]RYDOQLDSDUDWL±=QDþLOQRVWLLQSUHVNXVQHPHWRGH
,62
Household refrigerating appliances - Characteristics and test methods (ISO 15502:2005)
Haushalt-Kühl-/Gefriergeräte - Eigenschaften und Prüfverfahren (ISO 15502:2005)
Appareils de réfrigération a usage ménager - Caractéristiques et méthodes d'essai (ISO
15502:2005)
Ta slovenski standard je istoveten z: EN ISO 15502:2005
ICS:
97.040.30
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 15502
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2005
ICS 97.040.30 Supersedes EN 28187:1991, EN ISO 5155:1995, EN ISO
7371:1995, EN ISO 8561:1995
English Version
Household refrigerating appliances - Characteristics and test
methods (ISO 15502:2005)
Appareils de réfrigération à usage ménager - Haushalt-Kühl-/Gefriergeräte - Eigenschaften und
Caractéristiques et méthodes d'essai (ISO 15502:2005) Prüfverfahren (ISO 15502:2005)
This European Standard was approved by CEN on 19 September 2005.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
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. EN ISO 15502:2005: E
worldwide for CEN national Members.

Foreword
This document (EN ISO 15502:2005) has been prepared by Technical Committee ISO/TC 86
"Refrigeration and air-conditioning" in collaboration with Technical Committee CEN/TC 44
"Household refrigerating appliances and commercial refrigeration equipment", 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 April 2006, and conflicting national
standards shall be withdrawn at the latest by April 2006.

This document supersedes EN 28187:1991, EN ISO 5155:1995, EN ISO 7371:1995 and EN ISO
8561:1995.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: 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.

Endorsement notice
The text of ISO 15502:2005 has been approved by CEN as EN ISO 15502:2005 without any
modifications.
INTERNATIONAL ISO
STANDARD 15502
First edition
2005-10-15
Household refrigerating appliances —
Characteristics and test methods
Appareils de réfrigération à usage ménager — Caractéristiques et
méthodes d'essai
Reference number
ISO 15502:2005(E)
©
ISO 2005
ISO 15502:2005(E)
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ii © ISO 2005 – All rights reserved

ISO 15502:2005(E)
Contents Page
Foreword. iv
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols. 1
4 Classification. 8
5 Materials, design and manufacture. 8
6 Storage temperatures. 10
7 Determination of linear dimensions, volumes and areas. 12
8 General test conditions. 18
9 Testing air-tightness of doors, lids or drawer seals . 25
10 Testing opening force of doors or lids. 25
11 Testing the durability of doors, lids and drawers . 25
12 Testing mechanical strength of shelves and similar components. 28
13 Testing storage temperatures . 29
14 Water vapour condensation test. 33
15 Energy consumption test. 34
16 Temperature rise test . 39
17 Freezing test. 40
18 Ice-making test. 44
19 Final test report. 47
20 Designation . 47
21 Marking . 48
22 Technical and commercial product information . 50
23 Instructions for users. 51
Annex A (informative) Conditions particular to certain countries . 72
Annex B (informative) Percentage running time. 74
Annex C (informative) Test for absence of taste and odour. 75
Annex D (normative) Built-in refrigerating appliances. 78
Annex E (informative) Rated characteristics and control procedure . 79
Bibliography . 81

ISO 15502:2005(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
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. 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.
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.
ISO 15502 was prepared by Technical Committee ISO/TC 86, Refrigeration and air-conditioning,
Subcommittee SC 5, Testing and rating of household refrigeration appliances.
This first edition cancels and replaces ISO 5155:1995, ISO 7371:1995, ISO 8187:1991 and ISO 8561:1995, of
which it constitutes a technical revision. It also incorporates the amendments ISO 7371:1995/Amd.1:1997,
ISO 8187:1991/Amd.1:1997 and ISO 8561:1995/Amd.1:1997.

iv © ISO 2005 – All rights reserved

INTERNATIONAL STANDARD ISO 15502:2005(E)

Household refrigerating appliances — Characteristics and test
methods
1 Scope
This International Standard specifies the essential characteristics of household refrigerating appliances,
factory-assembled and cooled by internal natural convection or forced air circulation, and establishes test
methods for checking the characteristics. These are type tests, and because of this, when verification of the
performance of a refrigerating appliance of a given type in relation to this International Standard is necessary,
it is preferable, wherever practicable, that all the tests specified be applied to a single unit. The tests can also
be made individually for the study of a particular characteristic.
NOTE For the safety requirements applicable to household refrigerating appliances, see IEC 60335-2-24, for noise
requirements applicable to household refrigerators and freezers, see ISO 8960, and for additional safety requirements
applicable to the refrigerating systems of household refrigerating appliances, see in ISO 5149.
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.
ISO 534, Paper and board — Determination of thickness, density and specific volume
ISO 817, Refrigerants — Designation system
ISO 8960, Refrigerators, frozen-food storage cabinets and food freezers for household and similar use –
Measurement of emission of airborne acoustical noise
1)
IEC 60335-2-24:— , Household and similar electrical appliances — Safety — Part 2-24: Particular
requirements for refrigerating appliances, ice-cream appliances and icemakers
3 Terms, definitions and symbols
For the purposes of this document, the following terms, definitions and symbols apply.
3.1
refrigerating appliance
factory-assembled insulated cabinet with one or more compartments and of suitable volume and equipment
for household use, cooled by natural convection or a frost-free system whereby the cooling is obtained by one
or more energy-consuming means
NOTE From the point of view of installation, there are various types of household refrigerating appliance (free-
standing, wall-mounted, built-in, etc.).

1) To be published. (Revision of IEC 60335-2-24:2002)
ISO 15502:2005(E)
3.1.1
compression-type refrigerating appliance
refrigerating appliance in which refrigeration is effected by means of a motor-driven compressor
3.1.2
absorption-type refrigerating appliance
refrigerating appliance in which refrigeration is effected by an absorption process using heat as energy source
3.1.3
refrigerator
refrigerating appliance intended for the preservation of food, one of whose compartments is suitable for the
storage of fresh food
3.1.3.1
frost-free refrigerator
refrigerator in which all compartments are automatically defrosted with automatic disposal of the defrosted
water and at least one compartment is cooled by a frost-free system and at least one is a “frozen-food
storage” compartment
NOTE A single-compartment refrigerator using a frost-free system cannot be called a frost-free refrigerator.
3.1.4
refrigerator-freezer
refrigerating appliance having at least one compartment suitable for the storage of fresh food (the fresh-food
storage compartment) and at least one other (the food freezer compartment) suitable for the freezing of fresh
food and the storage of frozen food under three-star storage conditions
3.1.4.1
frost-free refrigerator-freezer
refrigerator-freezer in which all compartments are automatically defrosted with automatic disposal of the
defrosted water and at least one compartment is cooled by a frost-free system
3.1.5
frozen-food storage cabinet
refrigerating appliance having one or more compartments suitable for the storage of frozen food
3.1.5.1
frost-free frozen-food storage cabinet
frozen-food storage cabinet in which all compartments are automatically defrosted with automatic disposal of
the defrosted water and which is cooled by a frost-free system
3.1.6
food freezer
refrigerating appliance having one or more compartments suitable for freezing foodstuffs from ambient
temperature down to a temperature of − 18 °C and which is also suitable for the storage of frozen food under
three-star storage conditions
NOTE In certain instances, two-star sections and/or compartments are permitted within the compartment or cabinet
(see 7.2.8).
3.1.6.1
frost-free food freezer
food freezer in which all compartments are automatically defrosted with automatic disposal of the defrosted
water and at least one compartment is cooled by a frost-free system
3.1.7
built-in appliance
fixed refrigerating appliance intended to be installed in a cabinet, in a prepared recess in a wall or similar
location
2 © ISO 2005 – All rights reserved

ISO 15502:2005(E)
3.2
frost-free system
system automatically operated to prevent the permanent formation of frost, in which cooling is provided by
forced air circulation, the evaporator or evaporators are defrosted by an automatic defrost system and the
water from defrosting is disposed of automatically
3.3 Compartments and sections
3.3.1
fresh-food storage compartment
compartment intended for the storage of unfrozen food, which may itself be divided into sub-compartments
NOTE The storage temperatures can be maintained according to Clause 6.
3.3.2
cellar compartment
compartment intended for the storage of particular foods or beverages at a temperature warmer than that of
the fresh-food storage compartment
NOTE The storage temperatures can be maintained according to Clause 6.
3.3.3
chill compartment
compartment intended specifically for the storage of highly perishable foodstuffs whose volume is capable of
containing at least 2 M packages
NOTE The storage temperatures can be maintained according to Clause 6.
3.3.4
ice-making compartment
low-temperature compartment intended specifically for the freezing and storage of ice
3.3.5
frozen-food storage compartment
low-temperature compartment intended specifically for the storage of frozen food
NOTE Frozen-food storage compartments are classified according to temperature, see 3.3.5.1 to 3.3.5.5.
3.3.5.1
one-star compartment
frozen-food storage compartment in which the temperature is not warmer than − 6 °C
3.3.5.2
two-star compartment
frozen-food storage compartment in which the temperature is not warmer than − 12 °C
3.3.5.3
three-star compartment
frozen-food storage compartment in which the temperature is not warmer than − 18 °C
3.3.5.4
food freezer compartment
four-star compartment
compartment suitable for freezing foodstuffs from ambient temperature down to − 18 °C, and which is also
suitable for the storage of frozen food under three-star storage conditions
NOTE Two-star sections and/or compartments are permitted within the compartment or cabinet (see 7.2.8).
ISO 15502:2005(E)
3.3.5.5
two-star section
part of a food freezer compartment or cabinet, or three-star compartment or cabinet, which is not self-
contained (i.e. does not have its own individual access door or lid) and in which the temperature is not warmer
than − 12 °C
3.4
rated
stated as a value (e.g. a volume) by the manufacturer
3.5 Physical aspects and dimensions
3.5.1
top-opening type
refrigerating appliance in which the compartment(s) are accessible from the top
3.5.2
upright type
refrigerating appliance in which the compartment(s) are accessible from the front
3.5.3
overall dimensions
space — height, width and depth — with doors or lids closed taken up by the refrigerating appliance
3.5.4
overall space required in use
total space — height, width and depth — with doors or lids open necessary for the refrigerating appliance for
normal use
3.5.5
gross volume
volume within the inside liner of the refrigerating appliance, or of a compartment with an external door, without
internal fittings and with the doors or lids closed
3.5.6
storage volume
part of the gross volume of any compartment that remains after deduction of the volume of components and
spaces recognized as unusable for the storage of food
NOTE See 7.2.
3.5.7
shelf
horizontal surface (shelves, partitions, etc.) on which food can be placed
NOTE It can be formed by one component or by components fitted side by side, which can be fixed or removable.
3.5.8
storage shelf area
sum of the horizontal projections of the storage surfaces within the storage volume, including door shelves
and the bottom of each compartment
NOTE See 7.3.
3.5.9
load limit
surface enveloping a frozen-food storage volume
4 © ISO 2005 – All rights reserved

ISO 15502:2005(E)
3.5.10
load-limit line
permanent mark indicating limit of three-star frozen-food storage volume
3.5.11
storage plan
arrangement of test packages within a refrigerating appliance
3.6 Definitions relating to performance characteristics
3.6.1
energy consumption
energy consumed by a refrigerating appliance calculated over a period of 24 h when tested according to this
International Standard
3.6.2
fresh-food storage temperature
t
ma
mean temperature of the fresh-food storage compartment
3.6.3
frozen-food storage temperature
t*, t**, t***
maximum temperature of any M package during the test period
NOTE 1 The superscript attached to the symbol t corresponds to the one-star, two-star or three-star temperature.
NOTE 2 See 8.8.3.
3.6.4
cellar compartment storage temperature
t
cma
mean temperature of the cellar compartment
3.6.5
chill compartment storage temperature
t
cc
instantaneous storage temperature of the chill compartment
3.6.6
freezing capacity
amount of food expressed in kilograms that can be frozen to a temperature of − 18 °C in 24 h when tested in
accordance with Clause 17 of this International Standard
3.6.7
ice-making capacity
quantity of ice the refrigerating appliance is capable of producing within 24 h in an automatic icemaker, and/or
the time necessary for the freezing of the water in the ice tray(s) supplied with the refrigerating appliance
3.6.8
automatic defrost
defrosting where no action is necessary by the user to initiate the removal of frost accumulation or to restore
normal operation, and the disposal of the defrost water is automatic
ISO 15502:2005(E)
3.6.9
semi-automatic defrost
defrosting where an action is necessary by the user to initiate the removal of frost accumulation and normal
operation is restored automatically, the defrost water being removed manually or removed and disposed of
automatically
3.6.10
semi-automatic defrost
defrosting where no action is necessary by the user to initiate the removal of frost accumulation nor to restore
normal operation, but the removal of the defrost water is manual
3.6.11
manual defrost
defrosting where an action is necessary by the user to initiate the removal of frost accumulation and where
restoration to normal operation requires a further action by the user, the defrost water being removed
manually or removed and disposed of automatically
3.6.12
automatic disposal of defrost water
removal and evaporation of the defrost water which does not require any action by the user
3.6.13
manual removal of defrost water
collection and removal of defrost water that requires actions by the user
3.6.14
adaptive defrost
form of automatic defrosting system where energy consumed in defrosting is reduced by an automatic
process whereby the time intervals between successive defrosts are determined by an operating condition
variable (or variables) other than, or in addition to, elapsed time or compressor run time.
3.6.15
test package
food simulant used as load when testing frozen food compartments and chill compartments and during
freezing capacity testing in all compartments of refrigerator-freezers
3.6.16
M-package
test package fitted with a temperature sensor at its geometric centre
3.6.17
operating cycle
〈frost-free systems〉 period commencing at the initiation of an automatic defrosting cycle and terminating at the
moment of initiation of the next automatic defrosting cycle
3.6.18
operating cycle
〈systems designed to operate continuously〉 period of 24 h under stable operating conditions
3.6.19
operating cycle
〈other refrigerating appliances〉 period between two successive stops of the refrigerating system, or part of the
system, under stable operating conditions
3.6.20
automatic defrosting cycle
period between the moment when the means of defrosting the evaporator(s) is switched on and the moment
when the refrigeration process is re-established
6 © ISO 2005 – All rights reserved

ISO 15502:2005(E)
3.6.21
stable operating conditions
conditions in which a refrigerating appliance's mean temperatures and energy consumption are stable
3.6.22
ambient temperature
measured temperature in the space surrounding the refrigerating appliance under test
3.6.23
temperature rise time
time period needed to raise the temperature of food in the frozen food compartment from − 18 °C to − 9 °C
after the operation of the refrigerated system has been interrupted
3.7 Definitions relating to refrigerating system
3.7.1
refrigerant
fluid used for heat transfer in a refrigerating system, which absorbs heat at a low temperature and at a low
pressure of the fluid and rejects heat at a higher temperature and at a higher pressure of the fluid, usually
involving changes of state of the fluid
3.7.2
condenser
heat exchanger in which vaporized refrigerant is liquefied by rejecting heat to an external cooling medium
3.7.3
evaporator
heat exchanger in which the liquid refrigerant is vaporized by absorbing heat from the medium to be
refrigerated
3.7.4
temperature control device
device which automatically regulates the operation of a refrigerating system according to the temperature of
an evaporator or of a compartment or cabinet
3.8 Symbols
T , T temperature measurement points
i ci
t instantaneous temperature value (fresh food compartment)
i
t instantaneous temperature value (cellar compartment)
ci
t instantaneous temperature value (chill compartment)
cc
t integrated time average of t
im i
t integrated time average of t
cim ci
t instantaneous arithmetic average of t , t , t
a 1 2 3
t instantaneous arithmetic average of t , t , t
ca c1 c2 c3
t arithmetic average of t , t , t
ma 1m 2m 3m
t arithmetic average of t , t , t
cma c1m c2m c3m
i subscript representing 1, 2 or 3
ISO 15502:2005(E)
4 Classification
4.1 Refrigerating appliances conforming to this International Standard are classified into four climate
classes or into a range of classes, see Table 1. The range of ambient temperatures in which the appliances
are intended to be used, and for which the required storage temperatures are to be met (see Clause 6), shall
be as specified in Table 1.
Table 1 — Climate classes
Class Symbol Ambient temperature range
°C
Extended temperate SN + 10 to + 32
Temperate N + 16 to + 32
Subtropical ST + 16 to + 38
Tropical T + 16 to + 43
4.2 Refrigerator-freezers conforming to this International Standard are classified into the following two
types:
a) refrigerator-freezer type I — having a single, user-adjustable temperature control device for regulating the
temperatures of the fresh-food storage compartment and of the food freezer compartments;
b) refrigerator-freezer type II — having user-adjustable means for the separate regulation of the
temperatures of the fresh-food storage compartment and of the food freezer compartments.
NOTE Where there is another kind of compartment, there can be additional means of regulating that compartment's
temperature.
5 Materials, design and manufacture
5.1 General
Refrigerating appliances shall be constructed in such a manner as to ensure adequate performance and
durability in use. Their performance in use is checked by applying a series of relevant tests, which shall be
recorded in the final test report (see Clause 19).
5.2 Materials and finishes
Materials used inside refrigerating appliances shall not transmit odours or taste to food. A test procedure for
guidance is given in Annex C.
Materials used inside refrigerating appliances shall not contaminate food placed in contact with them nor
transmit poisonous substances to food. They shall be resistant to the action of moisture and food acids.
All surface finishes shall be resistant to impact, sufficiently hard, colour-fast, smooth, easily washable, and
resistant to damage by moisture and by food acids.
5.3 Thermal insulation and air-tightness
The thermal insulation of the refrigerating appliances shall be efficient. In particular, the insulating material
shall not be subject to shrinkage and shall not allow, under normal working conditions, an excessive
accumulation of moisture.
8 © ISO 2005 – All rights reserved

ISO 15502:2005(E)
No running water shall appear externally when the refrigerating appliance is subjected to the water vapour
condensation test specified in Clause 14.
When the door or lid is closed, there shall be no abnormal ingress of air into the interior. Compliance is
checked by the test specified in Clause 9.
5.4 Doors, lids, drawers and fittings
External doors, lids and drawers of refrigerating appliances shall withstand opening and closing without
deterioration which could be prejudicial to their air-tightness. Fittings shall be capable of maintaining their
proper function. Compliance is checked by the test specified in Clause 11.
It shall be possible to open an external door, lid or drawer on a refrigerating appliance from the inside.
Compliance is checked by the test given in Clause 10.
5.5 Shelves and containers
Shelves, containers and similar components shall have adequate mechanical strength. Those used for storing
food shall withstand the loading test specified in Clause 12 without showing such distortion that they could no
longer fulfil their intended function. In particular, sliding or revolving components shall be capable of their full
movement when loaded.
Shelves, containers and similar components which are intended to be removable shall be easily removable.
5.6 Collection and disposal of defrost water
5.6.1 For refrigerating appliances with automatic disposal of defrost water, means shall be provided for
collecting completely the defrost water either in a removable internal drip tray, or in an external receptacle
wherein the defrost water is evaporated, or by other means. For frost-free refrigerating appliances or
compartments, defrost water shall only be collected into external receptacles.
The drip tray or other defrost water receptacle should have adequate volume and, additionally, external drip
trays should have adequate evaporating means.
The volume of drip trays of evaporators which are semi-automatically or manually defrosted shall be at least
equal to the volume for the related evaporator(s), calculated by multiplying by 1 mm their total surface area on
which ice can form.
Any drainage system shall be designed to ensure its proper function. It shall be easily accessible for the
clearing of any blockage, and shall be designed so as to prevent any undue ingress of air into the food
storage compartment(s).
5.6.2 For refrigerating appliances with manual removal of defrost water, means or instructions shall be
provided to enable the collection of defrost water in such a way as to prevent water from flooding the floor
beneath the refrigerating appliance and/or damaging foodstuffs that may remain in the refrigerating appliance
during defrosting.
The volume of drip trays of evaporators with semi-automatic or manual defrost shall be at least equal to the
volume for the related evaporator(s), calculated by multiplying by 1 mm their total surface area on which ice
can form.
Any drainage system shall be designed to ensure its proper function. It shall be easily accessible for the
clearing of any blockage, and shall be designed so as to prevent any undue ingress of air into the food
storage compartment(s).
ISO 15502:2005(E)
5.7 Refrigerating system
5.7.1 The mechanical operation of the refrigerating appliance should not give rise to undue noise or
vibration.
5.7.2 The design of the condenser should be such as to reduce to a minimum the accumulation of dust.
5.7.3 The evaporator should be so designed or protected so that it will not suffer any damage during the
normal use of the refrigerating appliance.
The heat exchange surfaces shall be made of corrosion-resistant material, or shall be finished with a
corrosion-proof, non-poisonous coating resistant to temperature changes and alternating frosting and
defrosting.
5.7.4 The means of adjustment of temperature control devices, if intended to be adjusted by the user, shall
be readily accessible, and their function shall be such as to enable the refrigerating appliance to meet the
requirements of the performance tests.
5.7.5 Pipes and connections to moving or resiliently mounted parts should be arranged so as not to
generate noise, nor to touch or transmit vibrations to 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
and valves should be properly insulated.
5.7.6 Suitable means should be provided to prevent water condensed on cold parts from affecting the
operation of the unit or its controls, or from causing any other damage to the refrigeration appliance and its
surroundings.
6 Storage temperatures
Under the conditions specified in Clause 13, the refrigerating appliance shall be capable of maintaining,
simultaneously, the required storage temperatures in the different compartments and the permitted
temperature deviations (during the defrost cycle) as given in Table 2 for the different types of refrigerating
appliances and for the appropriate climate classes.
NOTE Table 5 gives the storage temperature applicable to the water condensation test specified in Clause 14, the
energy consumption test given in Clause 15 and the temperature rise test according to Clause 16.
Table 2 — Storage temperatures
°C
Fresh-food storage Food freezer Two-star One-star Cellar Chill
compartment and three-star compartment/ compartment compartment compartment
compartment/ section
cabinet
t , t , t t t*** t** t* t t
1m 2m 3m ma cm cc
a a
0 u t , t , t u 8 u +4 +8 u t u +14
u −18 u−12 u −6 −2u t u +3
1m 2m 3m cm
cc
a
As a result of a defrost cycle, the storage temperatures of frost free and/or adaptive defrost refrigerating appliances are permitted
to rise by no more than 3 K during a period not greater than 4 hours or 20 % of the duration of the operating cycle, whichever is the
shorter. An example of an operating cycle for a frost-free refrigerator-freezer is given in Figure 1.

10 © ISO 2005 – All rights reserved

ISO 15502:2005(E)
Key
X time, h
Y temperature, °C
1 start of the refrigerating process
2 period of 20 % of the operating cycle of max. 4 h when elevated temperatures are allowed for M-packages in the
freezer compartment
3 instantaneous temperatures of different M-packages
4 temperature of evaporator
5 automatic defrosting cycle
6 operating cycle
7 moments when the means of defrosting is switched on
8 instantaneous temperature of the warmest M-package
9 period under which the conditions in Table 2 should apply, with the exception of footnote a)
10 t
a
11 t
ma
12 t** + 3 K
13 t**
14 t*** + 3 K
15 t***
Figure 1 — Example of operating cycle for frost-free refrigerator-freezer
ISO 15502:2005(E)
7 Determination of linear dimensions, volumes and areas
7.1 Determination of linear dimensions
Linear dimensions shall be measured to the nearest millimetre.
The measurements shall be carried out on the refrigerating appliance as delivered and not operating. If there
is a cellar compartment, the volume of which is adjustable, measurements shall be made with this
compartment adjusted to both its minimum and maximum volumes.
The overall dimensions shall be measured as the height, width and depth of the rectangular parallelepiped,
whose base is horizontal, within which the refrigerating appliance is inscribed to include the complete
appliance except for the handle — the protrusion of which, if any, is to be specified separately.
The overall space required in use shall be measured as the height, width and depth, including the handle,
increased by the space necessary for free circulation of the cooling air when the refrigerating appliance is in
service, plus the space necessary to allow opening of the means of access to that minimum angle permitting
removal of all removable parts such as containers and shelves, including a drip tray that has to be removed
and any water that has to be emptied manually (see Figure 2).

Key
1 width
2 depth with open door
Figure 2 — Overall space required in use (upright type)
7.2 Determination of volumes
7.2.1 General
Calculated volumes shall be expressed to the nearest whole number of cubic decimetres or of litres
7.2.2 Determination of gross volume
The gross volume shall be calculated by dividing the total volume into convenient units of volumes of
geometric shapes, which can easily be measured.
12 © ISO 2005 – All rights reserved

ISO 15502:2005(E)
When the gross volume is determined, internal fittings such as shelves, removable partitions, containers,
evaporators, temperature control devices and interior light housings shall be considered as not being in place.
However, the gross volume shall take into account the exact shapes of the walls if they contain depressions or
projections. For an example, see Figure 22 a), b), c), d).
7.2.3 Determination of the total storage volume
The total storage volume shall be the sum of the storage volumes of all compartments, including two-star
section(s), as applicable.
For the determination of storage volumes, the total volume of devices and of spaces considered unusable for
the storage of food shall be deducted from the gross volume calculated in accordance with 7.2.2.
7.2.4 Storage volume of fresh-food storage, chill and cellar compartments
The storage volume of the fresh-food storage, chill and cellar compartments shall be the gross volume of the
compartment minus
⎯ the volume of the evaporator space,
⎯ the volume of any housings (such as those for interior lights, temperature-control devices and other
devices),
⎯ the volume of shelves, partitions, retainers and other accessories whose wall thickness is greater than
13 mm according to 7.2.9.1, and
⎯ the space between the inner door protrusion and the inner liner of the fresh-food storage compartment,
chill and cellar compartment, unless it is intended for the storage of food.
Where the volumes of the cellar compartment and fresh-food storage compartment are adjustable relative to
one another by the user, the storage volumes of these compartments shall be determined with the cellar
compartment adjusted to its minimum and maximum volumes.
7.2.5 Volume of evaporator space
7.2.5.1 Volume
The volume of the evaporator space shall be the product of the depth, width and height.
7.2.5.2 Depth
The depth of the evaporator space shall be the mean horizontal distance between the front and rear surfaces
of the enclosed space of the cabinet, measured at the level of the evaporator, unless there is a space
provided in front of the evaporator for food storage.
Where a storage space is located in front of the evaporator, the depth of the evaporator space shall be taken
as the mean horizontal distance from the inner surface of the rear of the enclosed space of the cabinet to the
foremost part of the evaporator, or of the evaporator door if fitted.
7.2.5.3 Width
The width of the evaporator space shall be the overall horizontal width of the evaporator itself (neglecting
suction headers near the top of the evaporator) or, if side ribs are used, the overall width including the ribs.
If there is less than 70 mm horizontal distance between the evaporator or the ribs and an inside wall of the
enclosed space of the cabinet, such space shall be considered as part of the evaporator space.
ISO 15502:2005(E)
7.2.5.4 Height
The height of the evaporator space shall be the mean vertical distance between the lower limit of the
evaporator and the upper partition of the food storage compartment.
If the free space between the upper surface or top of the evaporator and the upper partition of the food
storage compartment exceeds 40 mm, it shall be added to the storage volume of the fresh-food storage
compartment.
The evaporator height shall include any internal drip tray and/or drip collector, except in the case when the
storage height of the drip tray is greater than 40 mm and a definite manual operation is also needed to initiate
defrosting.
7.2.6 Storage volume of ice-making compartments
The storage volume of the ice-making compartments shall be the sum of the volumes of all the compartments
of this type in the refrigerating appliance.
The volumes of these compartments shall be determined in a similar manner to that specified in 7.2.3 and
7.2.4, as appropriate.
7.2.7 Storage volume of food freezer compartments/cabinets and frozen-food storage
compartments/cabinets
For the determination of the storage volume, the total volume which is unsuitable for storage shall be
determined and then deducted from the gross volume determined according to 7.2.2.
The total volume to be deducted shall comprise the following (for examples, see Figure 24):
a) the volume of spaces situated outside any load limit (natural or marked by the manufacturer);
b) the volume of spaces provided specifically for making and storing ice, except in the case of refrigerating
appliances fitted with automatic icemakers, when the volume occupied by a removable storage bucket
shall be included in the storage volume unless it is specified in the instructions for use that this volume is
suitable for the storage of ice only;
c) the volume of spaces between the front stack(s) of the test package load (see 13.3.2.2) and the inner
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;
d) the volume of all fixed components within the load limits;
e) the volume of spaces which are to be kept free for the satisfactory performance of the refrigerating
system;
f) the volume of all removable parts which are stated by the manufacturer as necessary for the proper
functioning of the refrigerating appliance, except shelves and partitions whose thickness is not greater
than 13 mm (see 7.2.9.1);
g) the volume rendered unusable by the use of removable parts (e.g. baskets, shelves) necessary for
obtaining satisfactory thermal and mechanical characteristics (see also 8.6.4);
h) any volume where the vertical clearance is less than 52 mm;
i) any volume where it is impossible to place an M-package of nominal dimensions in any position;
j) the storage volume of any two-star section(s).
14 © ISO 2005 – All rights reserved

ISO 15502:2005(E)
There is no equivalence between the value of the storage volume determined in accordance with the
principles mentioned above and the volume of the packages loaded into the refrigerating appliance for the
storage and freezing tests. The free spaces specified in the test methods could be utilized in normal u
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