QS SASO 2664 /     
 
 
 
 
 
 
ENERGY PERFORMANCE AND CAPACITY AND 
LABELING OF HOUSEHO LD REFRIGERATORS, 
REFRIGERATOR -FREEZERS, AND FREEZERS  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
ENERGY PERFORMANCE AND CAPACITY AND 
LABELING OF HOUSEHO LD REFRIGERATORS, 
REFRIGERATOR -FREEZERS, AND FREEZERS  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
Date of Approval  :  
Date of  Publication  in  the  Official  Gazette  :  
Date of Enforcement of this Standard  :  QATAR STANDARD  QS SASO 2664/      
   
   CONTENTS  
 
 
    Scope  ................................ ................................ ................................ ............................    
     Definitions  ................................ ................................ ................................ ....................    
     General Requirements  ................................ ................................ ................................     
      Test Room  ................................ ................................ ................................ ..................     
        Ambient Temperature  ................................ ................................ ................................ ................................ ................................ ..    
        Ambient Relative Humidity  ................................ ................................ ................................ ................................ .........................     
        Air Circulation  ................................ ................................ ................................ ................................ ................................ .............     
        Radiation  ................................ ................................ ................................ ................................ ................................ ......................     
      Instruments  ................................ ................................ ................................ .................     
        Temperature  ................................ ................................ ................................ ................................ ................................ .................     
        Increasing the Heat Capacity of a Thermocouple Junction  ................................ ................................ ................................ ..........     
        Temperature Measurements in a Freezer  ................................ ................................ ................................ ................................ ......    
        Electrical  ................................ ................................ ................................ ................................ ................................ ......................     
        Time  ................................ ................................ ................................ ................................ ................................ .............................     
        Length  ................................ ................................ ................................ ................................ ................................ ..........................     
      General Test Requirements  ................................ ................................ ........................     
       Steady -State Conditions  ................................ ................................ ................................ ................................ ...............................     
       Power Supply  ................................ ................................ ................................ ................................ ................................ ...............     
        Preparation of the Test Sample  ................................ ................................ ................................ ................................ ....................     
        General  ................................ ................................ ................................ ................................ ................................ .........................     
    Methods of Computation ................................ ................................ ............................     
      Total Refrigerated Volume of Refrigerators and Refrigerator -Freezers  ....................     
       Total Refrigerated Volumes - Areas Included  ................................ ................................ ................................ ..............................     
        Total Refrigerated Volumes - Areas Not Included  ................................ ................................ ................................ .......................     
        Fresh Food and Freezer Compartment Volume Measurement  ................................ ................................ ................................ .....    
        Total Refrigerated Volume Data  to be Reported  ................................ ................................ ................................ ..........................     
     The Volume of Special Features of Refrigerators and Refrigerator -Freezers  ...........     
        Special Features Volume – Areas Included  ................................ ................................ ................................ ................................ ..    
        Special Features Volume – Areas Not Included  ................................ ................................ ................................ ...........................     
       Volume Occupied by Special Features  ................................ ................................ ................................ ................................ .........     
        Volume Occupied by Special Features - Data to be Reported  ................................ ................................ ................................ ......    QATAR STANDARD  QS SASO 2664/      
   
          Volume Provided by Special Features ................................ ................................ ................................ ................................ ..........     
        Volume Provided by Special Features - Data to be Reported  ................................ ................................ ................................ .......    
      Total Shelf Area of Refriger ators and Refrigerator -Freezers  ................................ ....    
       General  ................................ ................................ ................................ ................................ ................................ .........................     
        Clearances  ................................ ................................ ................................ ................................ ................................ ....................     
       Shelf Area  ................................ ................................ ................................ ................................ ................................ ....................     
       Area of Suspended Containers  ................................ ................................ ................................ ................................ .....................     
       Shelf Suspended Container Area - Data to be Reported  ................................ ................................ ................................ ...............     
      Total Refrigerated Volume of Freezers  ................................ ................................ ......    
        Total Refrigerated Volumes - Areas Included  ................................ ................................ ................................ ..............................     
        Total Refrigerated Volumes - Areas Not Included  ................................ ................................ ................................ .......................     
        Total Refrigerated Volume Measurement  ................................ ................................ ................................ ................................ ....    
        Total Freezer Volume - Data  to be Reported  ................................ ................................ ................................ ...............................     
      The  Volume of Special Features of Freezers  ................................ ............................     
        Special Features Volume - Areas Included  ................................ ................................ ................................ ................................ ..    
        Special Features Volume – Areas Not Included  ................................ ................................ ................................ ...........................     
        Volume Occupied by Special Features  ................................ ................................ ................................ ................................ .........     
        Volume Occupied by Special Features - Data to be Reported  ................................ ................................ ................................ ......    
       Volume Provided by Special Features ................................ ................................ ................................ ................................ ..........     
        Volume Provided by Special Features - Data to be Reported  ................................ ................................ ................................ .......    
     Total Shelf Area of Freezers  ................................ ................................ ......................     
       General  ................................ ................................ ................................ ................................ ................................ .........................     
        Clearances  ................................ ................................ ................................ ................................ ................................ ....................     
        Shelf Areas  ................................ ................................ ................................ ................................ ................................ ...................     
        Shelf Area and Suspended Containers – Data to be Reported  ................................ ................................ ................................ ......    
    Procedure for Testing Refriger ators, Refrigerator -Freezers and Freezers  .................     
     Refrigerators and Refrigerator -Freezers  ................................ ................................ ....    
        Test Conditions  ................................ ................................ ................................ ................................ ................................ ............     
        Ambient Temperature and Relative Humidity  ................................ ................................ ................................ ..............................     
        Defrost and Antisweat Heater Controls  ................................ ................................ ................................ ................................ ........     
        Load Conditions  ................................ ................................ ................................ ................................ ................................ ...........     
5.1.5   Tempreture 
Measurements…………………………… ……………………… ………………………………………………… ……   
        Temperature Control Settings  ................................ ................................ ................................ ................................ ......................     QATAR STANDARD  QS SASO 2664/      
   
          Testing Sequence  ................................ ................................ ................................ ................................ ................................ .........     
       Test Period  ................................ ................................ ................................ ................................ ................................ ...................     
       Tropical Climate Test  ................................ ................................ ................................ ................................ ................................ ...    
     Freezers  ................................ ................................ ................................ ......................     
        Test Conditions  ................................ ................................ ................................ ................................ ................................ ............     
        Ambient Temperature and Relative Humidity  ................................ ................................ ................................ ..............................     
        Defrost and Antisweat Heater Controls  ................................ ................................ ................................ ................................ ........     
        Load Conditions  ................................ ................................ ................................ ................................ ................................ ...........     
        Temperature Measurements  ................................ ................................ ................................ ................................ .........................     
       Temperature Control Settings  ................................ ................................ ................................ ................................ ......................     
       Testing Sequence  ................................ ................................ ................................ ................................ ................................ .........     
5.2.8  Test 
Period……………………………………………………………………… ……………………………………………… ……   
       Tropical Climate Test  ................................ ................................ ................................ ................................ ................................ ...    
     Calculating the Energy Consumption of Refrigerators, Refrigerator -Freezers and  ......  
 Freezers  ................................ ................................ ................................ ......................     
     Refrigerators and Refrigerator -Freezers  ................................ ................................ ....    
        Per Day Energy Consumption  ................................ ................................ ................................ ................................ ......................     
         Average Per -Cycle Energy Consumption  ................................ ................................ ................................ ................................ .....    
       Basic Refrigerators and Refrigerator -Freezers  ................................ ................................ ................................ .............................     
       Graphical inrterpretation of clause  ................................ ................................ .....          
     Freezers  ................................ ................................ ................................ ......................     
       Per Day Energy Consumption  ................................ ................................ ................................ ................................ ......................     
        Average Per -Cycle Energy Consumption  ................................ ................................ ................................ ................................ .....    
        Compressor Running Time Percent ................................ ................................ ................................ ................................ ..............     
        Calculation of Freezing Capability  ................................ ................................ ................................ ................................ ...............     
    Maximum Energy Consumption Limits for Refrigerators, Refrigerator -Freezers and  .  
 Freezers  ................................ ................................ ................................ ......................     
      Adjusted Volume of Refrigerators and Refrigerator -Freezers  ................................ ...    
       General  ................................ ................................ ................................ ................................ ................................ .........................     
        Adjustment Factor  ................................ ................................ ................................ ................................ ................................ ........     
     Adjusted Volume of Freezers  ................................ ................................ .....................     
       ................................ ................................ ................................ ................................ ................................ ................................ .....    
       ................................ ................................ ................................ ................................ ................................ ................................ .....    QATAR STANDARD  QS SASO 2664/      
   
        Energy Consumption Limits for Refrigerators, Refrigerator -Freezers and Freezers  .    
     Sampling Plan  ................................ ................................ ................................ ............     
    Size of sample  
    Explanation of Sampling  Plan 
    Data to be Reported  ................................ ................................ ................................ ....    
      Refrigerators and Refrigerator -Freezers  ................................ ................................ ....    
     Freezers  ................................ ................................ ................................ ......................     
Table 1 - Maximum An nual Energy Consumption Limits for Refrigerators, Refrigerator -
Freezers  and Freezers in SI Units  (See Clauses 7.3, 9.1, and 9.2)  ................................ ....    
Table 2 - Maximum Annual Energy Consumption Limits for Refrigerators, Refrigerator - 
Freezers and Freezers in Imperial Units  ................................ ................................ ..............     
    Energy label  ................................ ................................ ................................ ...................   
      Star rating  ................................ ................................ ................................ ...................     
    Printing and placement of energy labels  ................................ ................................ ........   
      Placement  ................................ ................................ ................................ ...................      
      Material and shap  ................................ ................................ ................................ .......     
      Colours  ................................ ................................ ................................ .......................      
      Sample label  ................................ ................................ ................................ ...............     
      Label requirements and queries  ................................ ................................ .................     
APPENDIX A energy label diementions  ................................ ................................ ............     
APPENDIXB - Formate of application for registration (normative)          .........................     
APPENDIX C - refrences  ................................ ................................ ................................ .....    
LIST OF FIGURES  
Figure 1 -  Thermocouple Locations For Determination of Fresh Food Compartment  
Temperatures  ................................ ................................ ................................ .........................    
Figure 2 - Thermocouple Locations For Determination of Freezer Compartment 
Temperatures of Refrigerators and Refrigerator -Freezers  ................................ .......................   
Figure 3 -  Thermocouple Locations For Determination of Temperatures of  Freezers  
(Continued)  ................................ ................................ ................................ ..............................   
Figure 3 - (Conc luded)  ................................ ................................ ................................ .............   
Figure 4 -  Thermocouple Locations For Door Shelves Of Upright Freezers And Door 
Shelves Of Freezer Compartments In Refrigerator -Freezers  ................................ ..................   
Figure 5 -  Single -door Refrigerator -Freezer (Static Evaporator) - (Total Refrigerated 
Volume)  ................................ ................................ ................................ ................................ ...  
Figure 6 -  Single-door Refrigerator -Freezer (Dyanamic Evaporator) - (Total Refrigerated 
Volume)  ................................ ................................ ................................ ................................ ...  QATAR STANDARD  QS SASO 2664/      
   
   Figure 7 - Two-door Refrigerator -Freezer With Top Mounted Freezer (Total Refrigerated 
Volume)  ................................ ................................ ................................ ................................ ...  
Figure 8 - Two-door Combinatiom Refrigerator -Freezer With Bottom Mounted Freezer 
(Total Refrigerated Volume)  ................................ ................................ ................................ ...  
Figure 9 -  Fresh Food Compartment And Freezer Compartment Volumes  ............................   
Figure 10 -  Door Dike And Liner Plaque Dimensions (Total Refrigerated Volume)  .............   
Figure 11 -  Evaporator Applications (Total Refrigerated Volume) (Continued)  ....................   
Figure 11 -  (Continued)  ................................ ................................ ................................ ...........   
Figure 11 -  (Concluded)  ................................ ................................ ................................ ..........   
Figure 12 -  Evaporator Door Deductions (Total Refrigerated Volume)  ................................ .  
Figure 13 -  Types Of Evaporators (Total Refrigerated Volume)  ................................ ............   
Figure 14 - Volume In Freezer Compartment Occupied By Air Duct (Total Refrigerate d 
Volume)  ................................ ................................ ................................ ................................ ...  
Figure 15 - Volume In Freezer Compartment Occupied By Evaporator In Forced -air 
Systems (Total Refrigerated Volume)  ................................ ................................ .....................   
Figure 16 -  Volume In Fresh Food Compartment Occupied By Fan Shrouds, etc. (Total 
Refrigerated Volume)  ................................ ................................ ................................ ..............   
Figure 17 -  Volumes Occupied By And Provided By Typical Free -standing And 
Supported -relocatable Special Features (Continued)  ................................ ..............................   
Figure 17 - (Continued)  ................................ ................................ ................................ ............   
Figure 17 - (Concluded)  ................................ ................................ ................................ ...........   
Figure 18 - Volume Provided By Irregularly Shaped Ice Buckets Or Free -standing 
Containers  ................................ ................................ ................................ ................................   
Figure 18 -  (Continued)  ................................ ................................ ................................ ...........   
Figure 18 -  (Concluded)  ................................ ................................ ................................ ..........   
Figure 19 - Volumes Occupied By And Provided By Typical Supported -Fixed Special 
Features  ................................ ................................ ................................ ................................ ....  
Figure 19 -  (Concluded)  ................................ ................................ ................................ ..........   
Figure 20 -  Shelf Clearance Requirements (Total Shelf Area)  ................................ ...............   
Figure 21 -  Width And Depth Requirements (T otal Shelf Area)  ................................ ............   
Figure 22 -  Doors (Total Shelf Area)  ................................ ................................ ......................   
Figure 23 -  Suspended Containers (Total Shelf Area)  ................................ ............................   
Figure 24 -  Freezer - Upright Type (Static Evaporator) - (Total Refrigerated Volume)  .........   
Figure 25 -  Freezer - Upright Type (Dynamic Evaporator) - (Total Refrigerated Volume)  ...  
Figure 26 -  Freezer - Chest Type (Total Refrigerated Volume)  ................................ ..............   
Figure 27 -  Freezer - Chest Type (Total Refrigerated Volume)  ................................ ..............   QATAR STANDARD  QS SASO 2664/      
   
   Figure 28 -  Freezer - Chest Type (Total Refrigerated Volume)  ................................ ..............   
Figure 29 -  Door Dike And Linear Plaque Dime nsions (Total Refrigerated Volume)  ...........   
Figure 30 -  Types Of Evaporators (Total Refrigerated Volume)  ................................ ............   
Figure 31 -  Volume Occupied By Air Duct (Total Refrigerated Volume)  .............................   
Figure 32 - Volume Occupied By Evaporator In Forced -air Systems (Total Refrigerated 
Volume ) ................................ ................................ ................................ ................................ ...  
Figure 33 -  Freezer Shelf Clearance Requirements (Total Shelf Area)  ................................ ..  
Figure 34 -  Width And Depth Requirements (Total Shelf Area)  ................................ ............   
Figure 35 -  Doors (Total Shelf Area)  ................................ ................................ ......................   
Figure 36 - Suspended Containers (Total Shelf Area)  ................................ .............................   
Figure 37 -  Bevelled Liner Surfac es (Total Shelf Area)  ................................ .........................   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 QATAR STANDARD  QS SASO 2664/      
   
    
 
FOREWORD  
 
  Qatar  General Organizations for Standardization  has been adopted SASO 
          Energy performance and capacity and labeling  of househo ld 
refrigerators, refrigerator -freezers, and freezers  " in order to set minimum 
energy performance requirements and energy labelling for refrigerators and 
freezers . 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  QATAR STANDARD  QS SASO 2664/      
   
   ENERGY PERFORMANCE AND CAPACITY AND LABELING  OF  
HOUSEHOLD REFRIGERATORS, REFRIGERATOR - 
FREEZERS, AND FREEZERS  
 
 
          SCOPE  
            This Standard applies to  
(a)     household refrigerators, refrigerator -freezers, and freezers; and  
(b)    compact refrigerators, compact refrigerator -freezers and compact freezers 
that are electrically operated on a    Hz alternating current, with a 
nomin al supply voltage of      V.  
          This Standard applies to  
(a)   refrigerators and refrigerator -freezers with a capacity up to 1100  L (39  ft );  
    and  
(b)     freezers with a capacity up to 850  L (30  ft ). 
           The requirements in this Standard are not applicable to electrically 
operated refrigerators employing an absorption refrigeration system and for 
commercial refrigerators, refrigerators -freezers and freezers.  
           The values given in SI (me tric) units are the standard.  Any values given in 
parentheses are for information only.  
 
2.                DEFINITIONS  
        The following definitions apply in this Standard:  
        Air duct  - a passage that directs the flow of air.  
                   Antisweat heater  - a device incorporated into the design of a refrigerator or 
freezer to prevent the accumulation of moisture on exterior surfaces of the 
cabinet under conditions of high ambient humidity. This heater may be 
switchable from fully ON to full y OFF or to some intermediate condition of 
operation.  
        Baffle  - a plate, wall, or partition designed to perform one or more of the 
following functions:  
(a)     to prevent the contact of food with refrigerated surfaces;  
(b)    to prevent the dripping  of condensate on food; or  
(c)    to regulate or direct circulation of refrigerated air, or both.  
        Cabinet breaker strip  - a separate insulating element or integral extension 
of the cabinet interior surfaces around the periphery of the cabinet door or 
drawer opening(s) that functions as a thermal barrier to minimize heat flow to 
the interior of the cabinet.  
        Compartments  - food storage areas  for a particular type of product or QATAR STANDARD  QS SASO 2664/      
   
   purpose.  
        Basket  - an open container, usually made from coa ted wire or plastic 
mesh, provided to hold and allow easy access to food items. The container may 
be suspended from or sit on appliances walls, shelving or other containers.  
        Butter, margarine, or cheese compartment(s)  -  a compartment provided 
for the storage of butter, margarine, or cheese.  
                   Butter or margarine conditioner  - an enclosed compartment that is provided 
for the storage of butter, margarine, or both and that has an auxiliary 
temperature control.  
                   Crisp er - An enclosed compartment or container that retards the dehydration 
of fruits and vegetables.  It may have adjustable venting and sit on or be 
suspended from appliance walls or shelving.  
                   Drip tray  - a tray or drawer that is located be neath the refrigerated surfaces of 
a manual or semiautomatic defrosting refrigerator for the chilling of food or 
collecting of water during defrosting, or both. It may also serve as a baffle to 
regulate compartment temperature.  
                   Ice stora ge bin  - a container in which ice may be stored.  
                   Meat Pan  - A customer controlled variable temperature storage compartment 
utilized for the storage of meats and cheeses.  
                   Compressor cycle  - a period commencing from that  point in time when the 
compressor makes the transition from the OFF mode to the ON mode, to the 
moment when the compressor again makes the transition from the OFF mode 
to the ON mode.  
        Cycle  - the period of 24 h for which the energy use of a refrigerator or 
freezer is calculated, when consumer -activated compartment temperature 
controls are set so that desired compartment temperatures are maintained.  
                   Defrost period  - the per iod commencing from that point in time when the 
defrosting mechanism has made the transition from the OFF mode to the ON 
mode, to the moment when the defrosting mechanism again makes the 
transition from the OFF mode to the ON mode.  
                   Defro st system  - a means to remove frost, ice, or both, from the refrigerated 
surfaces.  
                   Automatic defrost (no -frost)  - a system in which the defrost cycle is 
automatically initiated and terminated, with resumption of normal refrigeration 
at the conclusion of the defrost operation.  
                   Note: The system automatically prevents the permanent formation of frost on 
all refrigerated surfaces. Nominal refrigerated food temperatures are 
maintained during operation of the automatic defr ost system(s) and the defrost 
water is disposed of automatically. Normal compressor cycling is not 
considered a defrost system.  
                   Long -time automatic defrost  - an automatic defrost system where successive 
defrost cycles are separated by 14  h or more of compressor -operating time.  QATAR STANDARD  QS SASO 2664/      
   
                       Manual defrost  - a system in which defrosting of the refrigerated surface is 
accomplished by natural or manual means with manual initiation and manual 
termination of the overall defrost operation.  
                   Partial automatic (cycle) defrost (refrigerators)  - a system in which the 
refrigerated surfaces of the freezer compartment are defrosted manually and the 
refrigerated surfaces of the fresh food compartment are defrosted 
automatically. D efrost water from the fresh food compartment is disposed of 
automatically or collected in a container for subsequent manual removal.  
                   Semi -automatic defrost  - a system in which the defrost cycle is manually 
initiated and automatically ter minated with automatic resumption of normal 
refrigeration at the conclusion of the defrost operation. Defrost water is 
disposed of automatically or collected in a container for subsequent manual 
removal. A means of accelerating the rate of defrost may or m ay not be 
included in the product design.  
                   Variable  defrost  - a long -time automatic defrost system (except the 14  h 
defrost qualification does not apply) where successive defrost cycles are 
determined by an operating condition variable or  variables other than solely 
compressor operating time. This includes any electrical or mechanical device. 
Demand defrost is a type of variable defrost control.  
                   Door  
                   Door dike  - a projection on the door that extends into the refrigerated 
compartment(s) and that functions primarily as a barrier to minimize heat flow 
to the interior of the cabinet.  
                   Right -hand door  - a door which is hinged on the right -hand side  when viewed 
facing the cabinet.  
                   Left-hand door  - a door which is hinged on the left -hand side when viewed 
facing the cabinet.  
                   Drip (drain) trough  - a device for channeling water.  
                   Evaporator  -The com ponent of a mechanical refrigeration system in which the 
refrigerant is evaporated using the heat absorbed from the medium to be 
cooled.  
        Fan shroud  - a protective housing surrounding the fan and which may also 
direct the flow of air.  
       Freezer  - a cabinet that is designed  
(a)   for the extended storage of frozen food at an average temperature of -
17.8°C (0°F) or lower;  
(b)     with the inherent capability for freezing of food; and  
(c)     with a minimum reserve capacity of 2  kg/100 L/24 h.  
        Chest type  - a freezer that is accessible from the top.  
                   Upright type  - a freezer that is accessible from the front.  
                   Freezer compartment  - a compartment that has the inherent capability of QATAR STANDARD  QS SASO 2664/      
   
    freezing to the  level  of performance required in the specific appliance.  
                   Freezing Capability – the reserve refrigerating capability of the freezer, 
expressed in kg of ice per 24 h, under the operating conditions specified in 
Clause 5.2  
                   Fresh food compartment  - compartment(s) designed for the refrigerated 
storage of food in a refrigerator at an average temperature above 0°C (32°F).  
                   Special compartments designed for the storage of fresh foods at temperatures 
near 0°C (32°F ) are considered part of the fresh food compartment.  
        Special compartments of combination refrigerator -freezers operating at 
average temperatures between  -15 and 0°C (5 and 32°F) are considered part of 
the fresh food compartment.  
                   Frozen food compartment  - a compartment that has the inherent capability to 
maintain frozen food at the temperature required in the specific appliance.  
                   Ice Maker  
                   Automatic - Connected to a water supply - a device whi ch  automatically 
produces, harvests, and stores ice in a storage bin, with a means to 
automatically interrupt the harvesting operation when the bin is filled to a 
predetermined point.  
                   Cyclic type  - an automatic ice maker with separate a nd sequential water fill, 
freezing, and harvesting phases of the ice -making operation.  
                   Noncyclic (continuous) type  - an automatic ice maker with simultaneous 
water supply, freezing, and/or harvesting phases in the ice -making operation.  
                   Ice storage bin rating  - the capacity of an automatic ice maker storage bin is 
the average weight of ice contained in the bin when the bin -fill device 
terminates the ice -making operation.  
                   Ice tray  - a container for free zing water into ice.  
                   Liner  - the enclosure forming the interior of the fresh food compartment, some 
freezer compartment(s), or both. The complete liner comprises the 
compartment liner in the cabinet, the exposed breaker strip surfaces, a nd the 
door liner(s).  
                   Plaque and/or sump  - the volume generated by embossed areas on the interior 
surfaces of the fresh food, freezer compartment(s), or both.  
                   Product type - the category of refrigerators, refrigerator -freezers and freezers 
as determined from the following list according to size, type of defrost system, 
location and orientation of freezer compartment and type of ice service:  
                  Type 1 - Refrigerators and refrigerator -freezers with manual defrost  
                   Type 2 - Refrigerator -freezers with partial automatic defrost  
                   Type 3 - Refrigerator -freezers with automatic defrost with top -mounted freezer 
without through -the-door ice service, and all refrigerators with auto matic 
defrost  QATAR STANDARD  QS SASO 2664/      
   
                       Type 4 - Refrigerator -freezers with automatic defrost with side -mounted 
freezer without through -the-door ice service  
                   Type 5 - Refrigerator -freezers with automatic defrost with bottom -mounted 
freezer witho ut through -the-door ice service  
                   Type 6 - Refrigerator -freezers with automatic defrost with top -mounted freezer 
with through -the-door ice service  
                   Type 7 - Refrigerator -freezers with automatic defrost with side -mounted 
freezer with through -the-door ice service  
                   Type 8 - Upright freezers with manual defrost  
                   Type 9 - Upright freezers with automatic defrost  
                   Type 10 - Chest freezers and all other freezers  
                   Type 11 - Compact refrigerators and refrigerator -freezers with manual defrost  
                   Type 12 - Compact refrigerator freezers with partial automatic defrost  
                   Type 13 - Compact refrigerator freezers with automatic defrost with top -
mounted freezer and compact all -refrigerators with automatic defrost  
                   Type 14 - Compact refrigerator -freezers with automatic defrost with side -
moun ted freezer  
                   Type 15 - Compact refrigerator -freezers with automatic defrost with bottom -
mounted freezer  
                   Type 16 - Compact upright freezers with manual defrost  
                  Type 17 - Compact upright freezers with automatic defrost  
                  Type 18 - Compact Chest freezers and all other freezers  
                  Quick -freeze  - an optional feature on freezers that is initiated manually and 
shut off manually. It bypasses the thermostat control and places the  compressor 
in a steady -state operating condition until it is shut off.  
                  Refrigerator  - a cabinet or any part of a cabinet that is designed for the 
refrigerated storage of food at temperatures above 0°C (32°F), that has a source 
of refrige ration. The cabinet may include a compartment for the freezing and 
storage of ice or for the storage of food or both at temperatures below 0°C 
(32°F).  
                   All-refrigerator  - a refrigerator that does not include a compartment for the 
storage of food at temperatures below 0°C (32°F). It may include a 
compartment of 14.2 L (0.5  ft ) or less for the freezing and storage of ice.  
 
                   Basic refrigerator  - a refrigerator that includes a low temperature 
compartment larger than 14.2L (0 .5ft ) for the freezing and storage of ice and 
for short -term storage of food at temperatures below 0°C (32°F) and normally 
above -15°C (5°F). It is characterized by a refrigerated surface(s) that partially 
encloses the low temperature compartment and cool s the fresh food 
compartment by natural convection. It frequently has a partition (called the QATAR STANDARD  QS SASO 2664/      
   
    chiller or drip tray).  
                   Class I  - a basic refrigerator with a low temperature frozen food storage 
compartment capable of maintaining temperature s at or below -9.4°C (15°F), 
with an average temperature of  5°C (41°F) in the fresh food compartment.  
                   Class II  - a basic refrigerator with a low temperature compartment capable of 
maintaining temperatures below 0°C (32°F) and normally a bove -9.4°C (15°F), 
with an average temperature  of  5°C (41°F) in the fresh food compartment.  
                   Compact refrigerator, refrigerator -freezer or freezer - an appliance with a 
total refrigerated volume of less than 219.5 L (7.75 cu ft) and an  overall height 
of less than 91.4 cm (36 inches).  
                   Refrigerator -Freezer  - a cabinet that consists of two or more compartments, 
with at least one of the compartments designed for the refrigerated storage of 
foods at temperatures above 0°C (32°F) and with at least one of the 
compartments designed for the freezing and storage of frozen foods at or below 
average temperatures of -15°C (5°F), and typically capable of being adjusted 
by the user to a temperature at or below  -17.8°C (0°F).  
                   The refrigerator -freezer is also capable of maintaining simultaneously an 
average freezer temperature of ≤ -15°C (5°F) and an average fresh food 
compartment temperature of ≥   ≤   °C (≥     ≤    °F)   
                   Shelf  -any horizontal su rface within the cabinet that is provided for the storage 
of food.  
                   Door shelf  - any surface on the door that may be used for the storage of food.  
                   Fractional shelf  - a surface that is less than either the width or the d epth, or 
both, of   the interior cross -section of the cabinet.  
                   Full shelf  - a surface that essentially fills the interior cross -section of the 
cabinet.  
                   Special features  - functional components, in a refrigerated cabinet that occupy 
space and provide additional capabilities.  
                   Free -standing special feature  - a functional component that rests freely on a 
shelf or on a storage compartment bottom, such as a n ice tray or a set -in pan.  
                   Supported fixed special feature   - a functional component that is supported in 
a fixed location, such as an automatic ice maker or a chiller tray.  
                   Supported re -locatable special feature   - a functional component that is 
supported in a location chosen by the user, such as a meat pan or an egg 
container.  
 
        Stabilization period  - the total period of time during which steady -state 
conditions are attained or evaluated.  
         Standard cyc le - the cycle type in which the anti sweat heater control, 
when provided, is set at the highest energy consuming position.  
        Steady -state condition  - a condition established during a stabilization QATAR STANDARD  QS SASO 2664/      
   
    period under either cyclic or continuous operating conditions in which the 
average compartment temperature or frozen food package temperature, where 
applicable, does not vary more than ±0.6°C (1°F) in two cycles (if cycling 
occurs) or 2  h, whichever is longer.  
        Note:  If the unit does not cycle, the average temperature between any two  
readings will not vary more than  ±0.6°C (1°F)  for a period of 2  h immediately 
preceding a defrost cycle, if applicable, will not vary more than ±0.6°C (1°F)  when 
compared to the average temperature during the 2  h peri od prior to the next defrost 
cycle.  
        Total shelf area  - for refrigerators, a calculated value based on the net 
areas of the main shelves, door shelves, bottoms of suspended containers or 
dispensers, and the bottom of the liner(s) of the fresh food a nd freezer 
compartments. For freezers, a calculated value based on the net areas of the 
main shelves, door shelves, bottoms of suspended containers or dispensers, and 
the bottom of the liner(s).  
       Volume -  
       Adjusted volume  -  
(a)     For refri gerators and refrigerator -freezers adjusted volume is the sum of  
(i)      the fresh food compartment volume in litres; and  
(ii)    the product of an adjustment factor and the net freezer compartment 
volume in litres; and  
(b)    For freezers, the adjusted v olume is the product of the freezer volume in 
litres times an adjustment factor.  
        Freezer compartment volume  - that portion of the total refrigerated 
volume below 0°C (32°F) average for basic refrigerators and -15°C (5°F) 
average or below for refrig erator -freezers.  
Fresh food compartment volume  - that portion of the total refrigerated 
volume above  -9.4°C(15°F) average for basic refrigerators and all -
refrigerators, or above -15°C(5°F)  average for refrigerator -freezers. Regardless 
of its temperature , the volume of the refrigerated chiller tray and other special 
compartment(s) for storage of fresh food near  0°C (32°F) shall be included in 
the fresh food compartment volume.  
Net freezer volume  - that part of the  total refrigerated volume of the freeze r 
maintained below -15°C (5°F) when the average interior temperature is 
maintained at -17.8 °C (0°F).  
 
Total refrigerated volume  -  
(a)     For a refrigerator, total refrigerated volume is the sum of the fresh food 
compartment volume and the freezer compa rtment volume; and  
(b)   For a freezer, total refrigerated volume is the freezer compartment volume.  
Water cooler  - a section of a refrigerator or refrigerator -freezer designed to 
provide the cooling of water directly plumbed into the appliance.  QATAR STANDARD  QS SASO 2664/      
   
    Check test  : a full or part test To verify the performance or energy consuption 
or both of an indivedual brand and model registered for energy labeling   
Star rating – the no. f stars displayed on the energy label (dimentionless).  
Family of models  – a range of model s of the one brand , registered under one 
application , where each of the models on the application has same relevant 
physical characteristics, compartive energy consumption . energy effeciency 
rating and performance characteristics ,throughout this standa rds ,the word 
"model" shall be read as "model or family of models"  
 
3.      GENERAL REQUIREMENTS  
               Test Room  
               Ambient Temperature  
        The upright ambient temperature gradient in any 305 mm (1 ft) of upright 
distance from 51 mm (2 in) above the floor or supporting platform to a height 
305 mm (1 ft) above the top of the cabinet shall not exceed 1°C/m (0.5°F/ft).  
                   If the test room floor temperature is not within 1.7°C (3°F) of the specified 
ambient temperature, a platform shall be used to support the cabinet. This 
platform shall have a solid top with all sides open for air circulation 
underneath, and its top shall ex tend at least 305 mm (1 ft) beyond each side and 
front of the cabinet and to the wall in the rear. ( see clouse 5.1.2 –       )  
3.1.2           Ambient Relative Humidity  
Wet bulb and dry bulb readings or the equivalent shall be taken to determine 
ambient r elative humidity when required. The ambient relative humidity need 
not be controlled, except when specified under Clauses 5.1.2 and 5.2.2.  
               Air Circulation  
The cabinet under test shall be shielded from forced air currents having a 
velocity of  more than 0.25 m/s (50 ft/min).  
               Radiation  
Shields shall be provided to prevent direct radiation from or to any heated or 
cooled surfaces whose temperature differs from the air temperature by more 
than 5°C (10°F).  
3.2              Instrumen ts 
3.2.1           Temperature  
Temperature measurements shall be made with one or more of the following 
instruments or their equivalents:  
(a)     electrical resistance thermometers   
(b)     thermistors; and  
(c)     thermocouples;  
Temperature readings shall be accurate to within ± 0.5°C (±1°F).  QATAR STANDARD  QS SASO 2664/      
   
    For digital measuring instruments, the resolution shall be 0.1°C (0.2°F) or 
better.  
               Increasing the Heat Capacity of a Thermocouple Junction  
When a mass is called for to increase the heat capacity o f a thermocouple 
junction, the total heat capacity of the mass shall not exceed the heat capacity 
of  20 g of water (200 g brass). Weighting of the temperature sensors shall be 
accomplished with a cylindrical brass mass, 30 ± 5 mm (1 -1/8 ± 1/4 in) in 
diame ter and height, in good thermal contact with each temperature sensor. All 
temperature measuring sensor masses shall be supported by low -thermally 
conductive material in such a manner that the air gaps required in Clauses  
3.2.3 and  5.2.5 are maintained.  
The reported temperature at any given point shall be the average temperature at 
that point at a particular time, with temperatures read at regular intervals not 
exceeding 4 min.  
               Temperature Measurements in a Freezer  
When the freezer compartme nt is required to be test loaded with packages, 
temperatures shall be measured by unweighted thermocouples, located in the 
geometrical centre of packages measuring approximately 130 x 100 x 40 mm 
(5 x 4 x 1.5 in).  
The packages shall  
(a)     be sealed; an d 
(b)   be filled to a density of 560 ± 80 kg/m  (35 ±5 lb/ft ) with hardwood 
sawdust that has been water -soaked, or, an equivalent package of frozen 
food, such as chopped spinach, shall provide a valid alternative.  
The frozen food compartment shall be loa ded with 75% of the maximum 
number of filled packages that can be fitted into the compartment. The 75% 
load shall be fitted into the compartment(s) so as to permit air circulation 
around and above the load.  
                   The air gap around the freeze r compartment load shall be 15 to 40  mm (1/2 to 
1-1/2 in), with the packages placed in a pyramid or tiered form if necessary to 
properly locate the thermocouples. To facilitate loading of the freezer 
compartment, a portion of the load may be made up of car tons filled with 
individual packages, as long as these cartons do not interfere with the 
placement of thermocouples in the required locations or with the required air 
circulation.  
                   Note:   In order to keep packages from shifting and destr oying the air gap, a 
wire grid that has small nonthermally conductive spacers for contact with the 
freezer liner may be used.  
3.2.4           Electrical  
                   Electrical measurements shall be made with one or more of the following 
instruments or their equivalents:  
(a)    Watt -hour meters  - The watt -hour meter shall have a resolution no larger QATAR STANDARD  QS SASO 2664/      
   
    than 1 Wh and a maximum error no greater than 2% of the measured 
value for any demand greater than 50  Wh. 
(b)  Voltmeters  - The voltmeter for measuring th e electrical input shall be 
accurate to within ±0.5% of the quantity measured.  
3.2.5           Time  
                   Time measurements shall be accurate to within ± 0.5 s/h.  
3.2.6           Length  
                  All linear dimensions shall be measured to the nearest millimetre (1/16  in). 
3.3             General Test Requirements  
                   For each test, the cabinet shall be operated at the specified test conditions for a 
sufficient lengt h of  time to establish steady -state conditions.  
3.3.1           Steady -State Conditions  
                   For each test, the cabinet shall be operated at the specified test conditions for a 
sufficient length of time to establish steady -state conditions.   
3.3.2           Power Supply  
                   Unless otherwise specified, the electrica l power supply shall be 230  V, 60 Hz 
at the product service connection. The actual voltage shall be reported as 
measured at the product service connection, with the compressor motor 
operating.  
3.3.3          Preparation of the Test Sample  
3.3.3.1       Assembly and Set -up 
                  The cabinet with its refrigerating mechanism shall be assembled and set -up in 
accordance with the manufacturer's printed instructi ons supplied with the 
appliance. All packing materials and skid boards shall be removed.  
3.3.3.2        Installation  
                   Unless otherwise specified, the cabinet shall be installed with all sides, except 
the back, more than 250 mm (10 in) fr om walls or ceiling to ensure free air 
circulation. The space between the back and the test room wall or simulated 
wall shall be in accordance with the manufacturer's instructions, or if not 
otherwise specified by the mechanical stops on the back of the ca binet.  
                   Unless otherwise specified, cabinet doors shall be kept closed during all tests. 
Outer door gasket seals shall be checked for adequacy of seal to the cabinet and 
adjusted, if necessary.  
                   All leads from measuring  devices shall be brought to the outside of the cabinet 
in such a manner as to prevent air leakage. Where sealing is not complete 
because of the use of thermocouple wires, taping of the door gasket on either 
side of the wires using adhesive tape is permitt ed, as long as the tape does not 
exert extra pressure on the gasket.  
3.3.3.3        Adjustments Prior to Testing  
(a)    In preparing a refrigerator, refrigerator -freezer or a freezer for test, the QATAR STANDARD  QS SASO 2664/      
   
    unit shall be set -up as specified in Clauses 3.3.3.1 to 3.3 .3.6 and 
particular attention shall be paid to the instructions pertaining to the 
placement and position of the chiller or drip tray during all tests. The 
proper placement may be designated by detents, depressions, bumpers or 
by other means;  
                   Note: Since the location of chiller or drip trays can influence the convective air 
flow around the freezing compartment (and also the performance of the 
appliance), it is essential that the proper placement be established.  
(b)     baffles shall be open;  
(c)     automatic ice makers shall be inoperative during the test;  
(d)    butter conditioners shall be set at the lowest energy usage position when 
adjustment is provided;  
(e)    convenience lights, radios, clocks, hygienic lamps, etc, shall be set a t the 
lowest energy usage positions, when adjustment is provided;  
(f)   features that are electrically powered, manually initiated, and automatically 
(or manually) terminated (such as customer operated dispensers, fast chill 
compartments, etc) shall be ope rated at the lowest energy use position;  
(g)  compartments that are convertible from refrigerator to freezer shall be 
operated at the highest energy usage position;  
(h)   other temperature controllable compartments (such as crispers, convertible 
to meat ke epers) shall be considered special compartments and shall be 
tested with the compartment controls set to provide the coldest 
temperature; and  
(i)    containers and covers shall not be removed, unless otherwise specified in 
the printed instructions supplied  with the appliance.  
3.3.3.4        Preconditioning  
Before the cabinet is tested, it shall be given a run -in period sufficient to assure 
a thorough working -in of mechanical parts, including operating controls. A 
run-in period  shall be no less than 24 h of  compressor run time. The run -in 
may be made at any convenient room temperature.  
3.3.3.5        Defrosting Between Tests  
The evaporator in manual defrost models need not be defrosted prior to each 
test unless frost accumulation exceeds 6 mm (1/4 in) in ave rage thickness. 
Chiller and drip trays and the interior of the cabinet shall be dried after the 
evaporator has been manually defrosted and prior to the start of the test.  
3.3.3.6        Freezer Loading  
When the test procedure requires the use of frozen foo d packages, ice trays and 
ice buckets related to nonautomatic ice -making shall be removed from the 
freezer section and the space vacated shall be loaded to 75% of capacity with 
frozen food packages; and  
Storage baskets in chest freezers shall be removed if  they are removable QATAR STANDARD  QS SASO 2664/      
   
    without the use of tools.  
3.3.4           Ambient Temperature Measurement  
The ambient temperature shall be recorded at points located 1 m (3  ft) above 
the floor line and 250 mm (10 in) from the centre of the two sides of the 
cabinet. The temperature at each point shall be maintained within 
±0.5°C(±1°F) of the specified value and shall be so maintained during 
stabilization periods as well as during the actual test runs.  
Temperature measuring devices shall be located or shielded so that the 
indicated temperature will not be affected by the operation of the condensing 
units.  A weighted thermocouple may be used in accordance with Clause 3.2.2.  
Ambient air temperature shall be recorded at each of the specified positions at 
intervals not gre ater than 30 min during the test period.  
             Temperature Measurement  
3.4.1           General  
Temperature Measurements shall be recorded at the locations shown on 
Figures 1 -4.  No freezer temperature measurements shall be necessary for all-
refrigerator models.  
3.4.2           Measured Temperatures  
               The compartment temperature for each test period shall be an average of 
the temperatures measured in a compartment during a complete cycle or 
several complete cycles of the compr essor motor (a compressor cycle shall be 
one complete motor ON period and one complete motor OFF period), over a 
time period exceeding 1  h. 
For long -time automatic defrost models, compartment temperatures shall be 
those measured in the first part of the te st period specified in Clause 5.1.8.4 for 
refrigerators or refrigerator -freezers or Clause 5.2.8.4 for freezers.  
For models equipped with variable defrost controls, compartment temperatures 
shall be those measured in the first part of the test period speci fied in Clause  
5.1.8.5 for refrigerators or refrigerator -freezers or Clause 5.2.8.5 for freezers.  
              One of the cycles shall be counted as the last complete compressor motor cycle 
during the test period.  
             On models with automatic de frost, all cycles should occur during the steady -
state condition between two defrost periods or one of the cycles should be the 
last complete compressor motor cycle prior to defrost.  
             If no compressor motor cycling occurs, the compartment tempe rature shall be 
the average of the temperatures taken during the last 60  min of the test period, 
or the last 60 min of compressor motor ON time prior to defrost for models 
with automatic defrost.  
             If incomplete cycling occurs (less than one cyc le), the compartment 
temperatures shall be the average of the temperatures taken during the last 3 h 
of the last complete ON period, or the last 3 h of complete compressor ON 
period prior to defrost for models with automatic defrost.  QATAR STANDARD  QS SASO 2664/      
   
     
          METHODS OF COMPUTATION  
4.1              Total Refrigerated Volume of Refrigerators and Refrigerator -Freezers  
4.1.1           Total Refrigerated Volumes - Areas Included  
                  The total refrigerated volume shall include the volume occupied by  
(a)   special features, such as baskets, crispers, meat pans, chiller trays, ice 
makers (including storage bins for automatic ice makers), and water 
coolers;  
(b)   cabinet shelves, door shelf fronts and bottoms, and doors of special feature 
compartments located within the door; and  
(c)  features, such as light shields, trims, and aesthetic items, that are removable 
without the use of tools.  
4.1.2           Total Refrigerated Volumes - Areas Not Included  
The total refrigerated volume shall not include the volume o ccupied by  
(a)     the following cabinet volumes:  
(i)    parts necessary for the proper functioning of the unit, such as evaporator 
doors, cooling coils, evaporators, air ducts, drip troughs, condensers, 
baffles, and fan shrouds;  
(ii)    fixed projections such as control knobs, shelf hangers, shelf and pan rails, 
and thermostat escutcheons that collectively exceed a volume of more 
than 1.4  L (0.05  ft ) per compartment and  
(b)    the following door refrigerated volumes:  
(i)      door dikes that do not serve as shelves;  
(ii)  partitions and projections within the door(s) enclosing a 
compartment that  do not serve as shelves, and that collectively 
exceed a volume of more than 1.4  L (0.05  ft ); 
(iii)   the space between the deductible door dikes (see item (b)(i )) and 
cabinet breaker strips or adjacent liner wall.  
4.1.3           Fresh Food and Freezer Compartment Volume Measurement  
4.1.3.1       The fresh food compartment volume and the freezer compartment volume shall 
be divided into the appropriate sections ha ving similar width and depth 
dimensions (see Figures 5 –   )  
4.1.3.2     The volume of each section and the volume of all shaded spaces shown in 
Figures 5 - 10 shall be calculated. The volume of the fresh food compartment 
sections shall be totalled to det ermine the total unadjusted fresh food 
compartment volume. The volume of the freezer compartment sections shall be 
totalled to determine the total unadjusted freezer compartment volume.  
4.1.3.3    The volumes of those items listed in Clause 4.1.2 and illus trated by cross -
hatching in Figures 5 - 16 shall be deducted from the  QATAR STANDARD  QS SASO 2664/      
   
    (a)    total unadjusted fresh food compartment volume in order to determine the  
fresh food compartment volume; and  
(b)   total unadjusted freezer compartment volume, in order to determine the  
freezer compartment volume.  
4.1.3.4       The total refrigerated volume of a refrigerator or a refrigerator -freezer shall be 
determined by adding the fresh food compartment volume and the freezer 
compartment volume.  
               Total Refr igerated Volume Data to be Reported  
The total refrigerated volume shall be reported to the nearest whole number of 
litres, or to the nearest one -tenth of a cubic foot.  
The fresh food compartment volume and the freezer compartment volume shall 
be reported t o the nearest tenth of a litre or nearest one hundredth of a cubic 
foot. 
4.2              The Volume of Special Features of Refrigerators and Refrigerator -Freezers  
4.2.1           Special Features Volume – Areas Included  
Special features to be included in  the volume calculation for refrigerators and 
refrigerator -freezers shall be  
(a)    compartments or accessories such as baskets, crispers, meat pans, chiller 
trays, water coolers, can or package racks, movable compartments such 
as drawers or trays, and ic e makers (including storage bins); and  
(b)    compartments or accessories located in the door, such as crispers, liquid 
or ice dispensers, or compartment doors.  
               Special Features Volume – Areas Not Included  
Door features of refrigerators and  refrigerator -freezers such as shelves, racks, 
rails, retainers, or any component that is attached or formed into the door liner 
and intended to improve its utility for storing jars, cans, and packages, shall not 
be included in the volume calculation.  
    3           Volume Occupied by Special Features  
4.2.3.1      The volume occupied by free -standing special features (see Figures 17 and 18) 
shall be calculated on an individual basis as the product of the values of width, 
length, and height of an encompass ing right angle envelope for each feature. 
When special features are adjacent to each other, the volume between them 
shall be included.  
4.2.3.2       The volume occupied by supported -fixed special features (see Figure 19) shall 
be calculated on an individ ual basis as the product of adjusted values of width, 
length, and height of each feature. These adjusted values shall be the actual 
average exterior dimensions of the feature, increased by the distances to 
adjacent surfaces or shelves where the volume defi ned by the distances is not 
readily accessible for normal use. A volume not readily accessible for normal 
use shall be defined as volume that is accessible only by removal of parts from 
the cabinet.  QATAR STANDARD  QS SASO 2664/      
   
    A volume adjacent to a special feature that has a dimensi on of less than 102 
mm (4  in) in the case of a fresh food compartment, or less than 51 mm (2 in) in 
the case of a freezing compartment, shall be considered as not readily 
accessible for normal use unless specific means are provided for supporting 
stored ar ticles and preventing their interference in the operation of the special 
feature.  
In the case of ice makers or other features, where the volume occupied by the 
feature is defined in part by the movement of parts associated with the 
mechanical operation of the feature, the adjusted value of width and length 
shall include the maximum dimension(s) required by the path of the moving 
part(s), increased by the distances to adjacent surfaces or shelves where the 
volume defined by these distances is not readily acc essible for normal use. This 
shall include the dimensions of any volume that is not readily accessible for 
normal use.  
4.2.3.3      The volume occupied by supported -relocatable special features (see Figures 17 
and 18) shall be calculated on an individual b asis as the product of adjusted 
values of width, length, and height of each feature, with the feature located in 
the position occupying the least volume.  
4.2.4          Volume Occupied by Special Features - Data to be Reported  
The sum of all storage volumes occupied by the special features shall be 
reported to the nearest 0.1  L or nearest 0.01  ft , with separate data for freezer 
compartments and fresh food compartments.  
4.2.5           Volume Provided by Special Features  
The storage volume provided by  free-standing, supported -fixed or supported -
relocatable special features shall be the product of the average interior width, 
length, and height from the interior bottom to the cover of the container when 
installed in its normal position in use. For ice tr ays, ice storage bins, and liquid 
containers, the storage volume shall be the interior volume when filled to the 
maximum operating level. See Figures 17 -    
4.2.6           Volume Provided by Special Features - Data to be Reported  
The sum of the volumes pr ovided by special features shall be reported to the 
nearest 0.1  L or nearest 0.01  ft , with separate data for fresh food 
compartments and freezer compartments.  
             Total Shelf Area of Refrigerators and Refrigerator -Freezers  
4.3.1           General  
The total shelf area shall be determined from the areas of the main shelves, 
door shelves, bottoms of suspended containers or dispensers, and the bottom of 
the liner(s) of the fresh food and freezer compartments.  
4.3.2           Clearances  
The area of any  part of a shelf in the fresh food compartment that has less than 
102 mm (4  in) clearance above the shelf shall not be included in the total shelf 
area, except if on the door or as otherwise provided in Clauses 4.3.3 and 4.3.4.  QATAR STANDARD  QS SASO 2664/      
   
    4.3.3           Shelf Area  
 .3.3.1      The area of the full shelves and of the bottom of the liner of the fresh food and 
freezer compartments shall be the product of the mean depth and mean width 
as shown in Figures 20 and 21.  
       If the bottom of the liner(s) of the fresh food a nd freezer compartments cannot 
qualify as a full shelf, the area shall be computed as the area of a cutout shelf or 
a fractional shelf.  
                   The depth dimension used for computing the shelf area shall be measured from 
the front of the shelf. See Figures 20 and 21.  
                   The depth of the shelf shall be the distance from the front edge of the shelf to 
the rear liner or to a point 38  mm (1 -1/2 in) beyond the rear edge of the shelf, 
whichever is less. See Figures 20 and 21.  
                   The width of a shelf shall be measured to the liner side(s) or to a point 38  mm 
(1-1/2 in) beyond the shelf edge, whichever is less. See Figures 20 and 21.  
4.3.3.2    The area of fractional shelves shall be the product of the width and depth, 
including the allowable overhang, and shall be determined in accordance with 
Clause 4.3.3.1 and Figure      
4.3.3.3      When any part of a full shelf or a fractional shelf is cut out, the area of the 
cutout that exceeds the allowable overhang as determined in accordance with 
Clause 4.3.3.1, shall be deducted from the calculated shelf area. See Figure 21.  
4.3.3.4      The area of shelves in the freezer compartment shall be included in the total 
shelf area provided there is a minimum clearance of 51 mm (2  in) abo ve such 
shelves. See Figures 20 and 21.  
 
4.3.3.5       The area of door shelves shall be the product of the mean depth and mean width 
of the shelf. The area of any part of a door shelf having an access clearance of 
less than 51 mm (2 in) shall not be included in the total shelf area. See Figures 
21 and 22.  
4.3.4          Area of Suspended Containers  
The area of the bottom of suspended containers shall be included in the total 
shelf area provided there is a minimum clearance of 51 mm (2  in) above the 
bottom of the container. See Figure 23.  
4.3.5           Shelf Suspended Container Area - Data to be Reported  
The total shelf area shall be reported to the nearest 100  cm  (nearest 0.1  ft ). 
4.4              Total Refrigerated Volume of Freezers  
                Total Refrigerated Volumes - Areas Included  
The total refrigerated volume shall include the volume occupied by  
 (a)  special features, such as can or package racks, dividers or dispensers 
(provided such features are not projections (see Clauses 4.4.2(a) (ii) and 
4.4.2(b)(ii)), baskets, compartment fronts, ice makers, and non QATAR STANDARD  QS SASO 2664/      
   
    refrigerated shelves;  
(b)   door -shelf fronts and bottoms and doors of special feature compartments 
located within the door; and  
(c)  features, such as light shields, trims and shelf,  pan and basket rails, 
aesthetic items that are removable without the use of tools.  
Note: The door volumes indicated in item (b) are included, as they normally 
add to the facility of the unit.  
4.4.2           Total Refrigerated Volumes - Areas Not Included  
The total refrigerated volume shall not include volume  
(a)     occupied by parts necessary for the proper functioning of the unit, such 
as cooling coils, evaporators, air ducts, drip troughs, baffles, and fan 
shrouds;  
(b)     occupied by door dik es that do not serve as shelves;  
(c)   occupied by partitions and projections within the door(s) enclosing a 
compartment, that do not serve as shelves, and that collectively exceed a 
volume of more than 1.4  L (0.05  ft ); 
(d)   between the deductible door dikes (see Item (b)) and cabinet breaker strips 
or adjacent liner walls; and  
(e)   occupied by fixed projections, such as control knobs, shelf hangers, shelf 
and basket rails, and thermostat escutcheons, that collectively exceed a 
volume of more than 1.4  L (0.05  ft ) per compartment.  
4.4.3           Total Refrigerated Volume Measurement  
4.4.3.1     The total refrigerated volume shall be divided into the appropriate sections 
having similar width and depth dimensions (see Figures 24 -   )  
4.4.3.2     The vol ume of each section and the volume of all shaded spaces shown in 
Figures 24 - 29 shall be calculated. The volumes of these sections shall be 
totalled to determine the total unadjusted refrigerated volume.  
4.4.3.3       Those items listed in Clause 4.4.2 an d illustrated by cross -hatching in Figures 
24 - 32 shall be deducted from the total unadjusted refrigerated volume in order 
to determine the total refrigerated volume.  
4.4.4            Total Freezer Volume - Data  to be Reported  
 The total refrigerated vol ume of the freezer shall be reported to the nearest 
1 L (0.1 ft ). 
4.5.             The  Volume of Special Features of Freezers  
4.5.1           Special Features Volume - Areas Included  
Special features to be included in the volume calculation for freezers shall be  
(a)  compartments or accessories such as baskets,  can or package racks, 
movable compartments such as drawers or trays, and ice makers 
(including storage bins); and  
(b)   compartments or accessories in the door, such as liquid or ice dispensers, QATAR STANDARD  QS SASO 2664/      
   
    or compartment doors.  
4.5.2           Special Features Volume – Areas Not Included  
Door features of freezers such as shelves, racks, rails, retainers, or any 
component that is attached or formed into the door liner and intended to 
improve its utility for s toring jars, cans, and packages, shall not be included in 
the calculation.  
4.5.3           Volume Occupied by Special Features  
4.5.3.1        Free -Standing Special Features  
                   The volume occupied by free -standing special features shall be calculated on 
an individual basis as the product of the values of width, length, and height of 
an encompassing right angle envelope for each feature. When special features 
are adjacent to each other, the volume between them shall not be included. See 
Figures 17 and 18.  
4.5.3.2        Supported -Fixed Special Features  
                   The volume occupied by supported -fixed special features (see Figure 19) shall 
be calculated on an individual basis as the product of adjusted values of width, 
length, and height of each feature. These adjusted values shall be the actual 
average exterior dimensions of the feature, increased by the distances to 
adjacent surfaces or shelves where th e volume defined by the distances is not 
readily accessible for normal use. A volume not readily accessible for normal 
use shall be defined as volume that is accessible only by removal of parts from  
the cabinet.  
A volume adjacent to a special feature that  has a dimension of less than 51 mm 
(2 in) in the case of a freezer compartment, shall be considered as not readily 
accessible for normal use unless specific means are provided for supporting 
stored articles and preventing their interference in the operati on of the special 
feature.  
In the case of ice makers or other features, where the volume occupied by the 
feature is defined in part by the movements of parts associated with the 
mechanical operation of the feature, the adjusted value of width and length 
shall include the maximum dimension(s) required by the path of the moving 
part(s), increased by the distances to adjacent surfaces or shelves where the 
volume defined by these distances is not readily accessible for normal use. This 
shall include the dimensi ons of any volume that is not readily accessible for 
normal use.  
4.5.3.3       Supported -Relocatable Special Features  
The volume occupied by supported -relocatable special features shall be 
calculated on an individual basis as the product of adjusted value s of width, 
length, and height of each feature, with the feature located in the position 
occupying the least volume.  
4.5.4           Volume Occupied by Special Features - Data to be Reported  
The sum of all  volumes occupied by the special features shall be  reported to 
the nearest 0.1  L or nearest 0.01  ft . QATAR STANDARD  QS SASO 2664/      
   
    4.5.5           Volume Provided by Special Features  
The storage volume provided by free -standing, supported re -locatable and 
supported -fixed  special features shall be the product of the average interior  
width, length, and height from the interior bottom to the cover of the container 
when installed in its normal position in use. For ice trays, ice storage bins, and 
liquid containers, the storage volume shall be the interior volume when filled to 
the maxim um operating level.  
              Volume Provided by Special Features - Data to be Reported  
The sum of the volumes provided by special features shall be reported to the 
nearest 0.1  L or nearest 0.01  ft . 
4.6             Total Shelf Area of Freezers  
               General  
The total shelf area shall be determined from the areas of the main shelves, 
door shelves, bottoms of suspended containers or dispensers, and the bottom of 
the liner(s).  
4.6.2          Clearances  
The area of any part of a shelf that has le ss than 51  mm (2  in) clearance above 
the shelf shall not be included in the total shelf area, except if on the door or as 
otherwise provided in Clauses         
               Shelf Areas  
4.6.3.1    The area of the full shelves and of the bottom of the liner of the freezer 
compartment shall be the product of the mean depth and mean width as shown 
in Figures 33 and 34.  
If the bottom of the liner of the freezer compartment cannot qualify as a full 
shelf, its area shall be computed as the area of a cutout s helf or a fractional 
shelf.  
The depth dimension used for computing the shelf area shall be measured from 
the front of the shelf. See Figures 33 and 34.  
The depth of the shelf shall be the distance from the front edge of the shelf to 
the rear liner or to a point 38  mm (1 -1/2 in) beyond the shelf, whichever is less. 
See Figures 33 and 34.  
The width of a shelf shall be measured to the liner side(s) or to a point 38 mm 
(1-1/2 in) beyond the shelf edge, whichever is less. See Figure 34.  
4.6.3.2    The area of fr actional shelves shall be the product of the width and depth, 
including the allowable overhang, and shall be determined in accordance with 
Clause 4.6.3.1 and Figure      
4.6.3.3      When any part of a full shelf or a fractional shelf is cut out, the area o f the 
cutout that exceeds the allowable overhang as determined in accordance with 
Clause 4.6.3.1, shall be deducted from the calculated shelf area. See Figure 34.  
4.6.3.4       The area of door shelves shall be the product of the mean depth and mean width 
of the shelf. The area of any part of a door shelf having an access clearance of QATAR STANDARD  QS SASO 2664/      
   
    less than 51 mm (2  in) shall not be included in the net shelf area. See Figures 
33 and 35.  
4.6.3.5       The area of the bottom of suspended containers shall be included in th e net 
shelf area provided there is a minimum clearance of 51  mm (2  in) above the 
bottom of the containers. See Figure 36.  
4.6.4          Shelf Area and Suspended Containers – Data to be Reported  
The net shelf area shall be reported to the nearest 100  cm  (0.1 ft ). 
 
           PROCEDURE FOR TESTING REFRIGERATORS, 
REFRIGERATOR -FREEZERS AND FREEZERS  
5.1              Refrigerators and Refrigerator -Freezers  
5.1.1          Test Conditions  
The general test conditions shall be in accordance with Clause 3, with additions 
or exceptions described in clauses 5.1.2 -        
5.1.2          Ambient Temperature and Relative Humidity  
i.       The ambient temperature in the locations specified in clause 3.3.4 shall be 
(32±1)ºC and the relative humidity shall be (60±15)% d uring the 
stabilization period and during the test period.  
ii.   Representative ambient temperature for tropical climate test shall be 
(43±1)ºC as a base for carrying out the test.  
                   When the unit is tested in accordance with Clause 5.1.7. 4  the ambient 
temperature shall be 26.6±1.1ºC (80± 2ºF) dry bulb and 19.4± 0.6 ºC (67 ±1º F) 
wet bulb (52± 9% relative humidity) during the test period.  
Note:  Temperatures may be measured using weighted temperature sensors as 
described in Clause 3.2.2.  
Please refer GCC Specifications No. GCCS200001E/20001 - Classification of 
Service Conditions for supply of Equipment / Materials.  
5.1.3           Defrost and Antisweat Heater Controls  
The defrost controls shall be operative for all tests conducted under this  
method.  
Tests shall be run with the antisweat heater switch in both the ON and OFF 
positions for each temperature control setting. The average consumption shall 
be the calculated average of the consumption measured during each of the tests, 
with antisweat  heaters in the ON position and in the OFF positions.  
5.1.4           Load Conditions  
Automatic defrost refrigerator -freezers, and all -refrigerators, shall be tested 
with no -load in the freezer compartment.  
Manual defrost, semiautomatic defrost, and parti al automatic defrost 
refrigerators, refrigerator -freezers with freezer compartment volumes QATAR STANDARD  QS SASO 2664/      
   
    exceeding 14.2 L (0.5 ft ), shall be tested in a package -loaded condition as 
described in Clause          
             Temperature Measurements  
5.1.5.1        General  
For those compartments tested without load, temperatures shall be measured 
using weighted temperature sensors as described in Clause 3.2.2  
5.1.5.2     Fresh Food Compartment Temperature (Refrigerators and Refrigerator -
Freezers)  
Temperatures shall be recorded a t three locations, as illustrated in Figure 1. All 
temperature measuring devices shall be supported in such a manner that at least 
25 mm (1 in) of air space shall separate the thermal mass from contact with any 
surface. In case of interference with hardwar e at these locations, the 
temperature measurements shall be taken at the nearest adjacent location such 
that at least 25  mm (1 in) of air space shall separate the thermal mass from the 
hardware.  
If the interior arrangements of the cabinet do not conform wi th those illustrated 
in Figure  1, measurements shall be taken at selected locations chosen to 
approximately represent the entire fresh food compartment. The locations 
selected shall be reported.  
The reported temperatures of the fresh food compartment shall  be the average 
of the temperatures recorded at the three locations illustrated in Figure 1.  
5.1.5.3  Freezer Compartment Temperature  - Manual Defrost Refrigerators, 
Semiautomatic Defrost Refrigerators, and Partial Automatic Defrost 
Refrigerators and Refr igerator -Freezers  
For manual defrost refrigerators, semiautomatic defrost refrigerators, and 
partial automatic defrost refrigerators and refrigerator -freezers (where the 
freezer volume is greater than 14.2 L (0.5  ft ), freezer compartment 
temperatures shal l be measured at the geometric centre of the filled packages 
described in Clause 3.2.3, with packages located so that temperature 
measurement stations approximate the locations shown in Figures  2 and 3.  
Where required, freezer compartment door shelves shal l be loaded with the 
maximum number of filled packages that can be retained on each shelf without 
added restraints.  
If the interior arrangements of the freezer compartment shelves do not conform 
with those shown in Figure 3, measurements shall be taken at  locations selected 
to represent the intent of this Standard. The locations selected shall be reported.  
The reported temperature of the freezer compartment shall be the average of 
the temperatures recorded at the locations shown in Figures 2 and 3.  
      4    Freezer Compartment Temperature Automatic Defrost Refrigerator -
Freezers  
Unless otherwise required, temperature measurements in the freezer 
compartment(s) of automatic defrost refrigerator -freezers shall be made in a QATAR STANDARD  QS SASO 2664/      
   
    no-load condition, i.e. loading of the compartment(s) with test packages as 
described in Clause  3.2.3 shall not be required in these instances.  
Temperatures shall be recorded at the locations illustrated in Figure 2. All 
temperature measuring devices shall be supported in such a manner that  at least 
25 mm (1  in) of air space shall separate the thermal mass from contact with any 
surface. In case of interference with hardware at these locations, the 
temperature measurements shall be taken at the nearest adjacent location such 
that 25  mm (1  in) of air space shall separate the thermal mass from the 
hardware.  
If the interior arrangements of the cabinet do not conform with those shown in 
Figure 2, measurements shall be taken at selected locations chosen to 
approximately represent the entire freezer  compartment. The locations selected 
shall be reported.  
The reported temperature of the freezer compartment shall be the average of 
the temperatures recorded at the locations shown in Figure 2.  
5.1.6           Temperature Control Settings  
5.1.6.1        C ontrol Settings for Models with No User Operable Temperature Control  
Compartment temperatures and energy consumption shall be measured with  
(a)    the temperature control operating; and  
(b)   the temperature control electrically short -circuited to cause the compressor 
to run continuously.  
5.1.6.2        Control Settings for Models with User Operable Temperature Control  
Testing shall be performed in accordance with one of the following conditions, 
using the appropriate standardized reference temperatures:  
(a)     all refrigerator, fresh food compartment temperature, 3.3ºC  (38ºF);  
(b)   basic refrigerator, freezer compartment temperature,  -9.4ºC (15ºF), or 
7.2ºC (45ºF) in the fresh food compartment, whichever yields the higher 
energy consumption;  
(c)   refr igerator, freezer compartment temperature,  -15.0ºC (5ºF), or 7.2ºC 
(45ºF) in the fresh food compartment, whichever yields the higher energy 
consumption;  
         and 
(d)  variable defrost control models, -15ºC (5ºF) freezer compartment 
temperature and 3.3 ±1ºC (38± 2 ºF) fresh food compartment temperature 
during steady -state conditions with  no door openings. If both settings 
cannot be obtained, then test with the fresh food compartment 
temperature at  3.3±1 ºC (38± 2ºF) and the freezer compartment as close  
to -15ºC (5ºF) as possible.  QATAR STANDARD  QS SASO 2664/      
   
    5.1.7           Testing Sequence  
5.1.7.1        Standard Testing Sequence  
                   The following two tests shall be performed in sequence: the first test shall be 
performed at the mid -position setting of the temperatu re control. The second 
test shall be performed at either the maximum or minimum temperature mark 
indicated on the control dial, whichever is appropriate to attempt to achieve 
compartment temperatures measured during the two tests that frame (ie, one 
falls above and one falls below) the standardized reference temperature for the 
type of product under test.  
(a)   For the first test, all compartment temperature controls shall be set at the 
median position, midway between the warmest and coldest settings. Knob 
detents shall be mechanically defeated if necessary to attain a median 
setting.  
(b)  For the second test, all compartment temperature controls shall be set at 
their warmest or coldest settings (not electrically or mechanically 
bypassed), whichever is appro priate to attempt to achieve compartment 
temperatures measured during the two tests that frame the standardized 
reference temperature for the type of product under test.  
If the compartment temperatures measured during these two tests frame the 
appropriate standardized reference temperature, then these test results shall be 
used to determine energy consumption for a given setting of the antisweat 
heater switch.  
If the compartment temperatures, measured with all controls set at their 
warmest setting, fall bel ow the standardized reference temperature (and if the 
fresh food compartment temperature falls below 7.2ºC (45ºF) in the case of a 
basic refrigerator or refrigerator -freezer, excluding an all -refrigerator), then the 
result of this test alone shall be used to determine energy consumption for a 
given setting of the antisweat heater switch.  
5.1.7.2       Alternative Testing Sequence  
As an alternative to tests in Clause 5.1.7.1, the first test may be performed as 
follows:  
i.     all temperature controls shall be set at their warmest setting;  
ii.      if either compartment temperature is above the reference temperature, 
testing shall proceed as specified in Clause 5.1.7.1.(a); and  
iii.     for basic refrigerators or refrigerator -freezer s (but not all -refrigerators), 
if compartment temperatures fall below the appropriate standardized 
reference temperature, and if the fresh food compartment falls below 
7.2°C (45°F), then the results of this test alone shall be used to determine 
energy cons umption for a given setting of the antisweat heater switch.  
5.1.7.3        Non -Compliance and Product Description  
In the standard and alternative testing sequences, the conditions of 
noncompliance with prescribed thermal performance shall be as follows:  QATAR STANDARD  QS SASO 2664/      
   
    (a)  if, with all compartment controls at their coldest settings, the fresh food 
compartment temperature is still above 5°C, the product has not met the 
thermal performance definition of a refrigerator or refrigerator -freezer, 
cannot be so described, and ca nnot be tested for energy consumption; and  
(b)  if, with all compartment controls set at their coldest settings, frozen food 
compartment temperature is still above the standard operating 
temperature specified in Clause  5.1.6.2, the product description shal l be 
changed to agree with that description appropriate to the measured 
temperature. Energy consumption shall then be declared in accordance 
with the revised product description.  
5.1.7.4         Variable Defrost Control - Optional Test  
                    After a steady -state condition is achieved, the optional test requires door 
openings of the fresh food compartment door for 12 ± 2 s every 60 min and a 
simultaneous 12 ± 2 s freezer compartment door opening occurring every 
fourth time to obtain 24 fresh fo od and six freezer compartment door openings 
per 24  h period. The first freezer door opening shall be simultaneous with the 
fourth fresh food door opening. The doors are to be opened 60°to 90°with an 
average velocity for the leading edge of the door of app roximately 0.6 m/s (2 
ft/s). Prior to the initiation of the door opening sequences, the refrigerator 
defrost control mechanism may be reinitiated in order to minimize the test 
duration.  
5.1.8           Test Period  
5.1.8.1        General  
                   Tests shall be performed by establishing the conditions specified in 
Clause  5.1.2 and by using the control settings as specified in Clauses  5.1.6 to 
       
5.1.8.2      Manual, Semiautomatic, and Partial Automatic Defrost Refrigerators and 
Refrigerator -Freezers  
                  The test time period shall begin after steady -state conditions have been 
achieved and shall continue for at least three hours.  
                   During the test period, the compressor motor shall complete two or more 
complete compr essor cycles.  If no OFF period occurs, as determined during 
the stabilization period, the test period shall be 3 h.  
                  If incomplete cycling (less than two compressor cycles) occurs during a 24 h 
period, the results from the 24 h period sha ll  be used.  
5.1.8.3      Automatic Defrost  
If the model tested has an automatic defrost system, the test period shall begin 
after steady -state conditions have been achieved and shall run from one point 
during a defrost period to the same point during the next defrost period.  
If the model being tested has a long -time automatic defrost system, the 
provisions of 5.1.8.4 may be used. If the model being tested has a variable 
defrost control, the provisions of Clause 5.1.8.5 or 5.1.8.6 shall apply.  QATAR STANDARD  QS SASO 2664/      
   
                   Long -time Automatic Defrost  
                   If the model being tested has a long -time automatic defrost system, the test 
time period may consist of two parts. The first part would be the same as the 
test for a unit having no defrost provision (see Cl ause 5.1.8.2). The second part 
would start when a defrost period is initiated during a compressor ON cycle 
and terminate at the second turn ON of the compressor motor or after 4  h, 
whichever comes first.  
5.1.8.5       Variable Defrost Control  
                  If the model being tested has a variable defrost control system, the test shall 
consist of three parts. The first two parts shall be the same as the test for long -
time automatic defrost specified in Clause  5.1.8.4. The third part shall be the 
optiona l test to determine the mean time between defrosts (see Clause 5.1.8.6). 
The third part shall be used by manufacturers who choose not to accept the 
default value of F of 0.20 to calculate T D    (See Clause 6.1.1.4).   
QATAR STANDARD  QS SASO 2664/2013  
 
    5.1.8.6        Mean Time Between Defrost  
                   After steady -state condition with no door openings is achieved, the test shall be 
continued using the above daily door -opening sequence (in accordance with 
Clause   5.1.7.4) until stabilized operation is achieved. Stabilization is defined  
as a minimum of three consecutive defrost cycles with times between defrosts 
that will allow the calculation of a Mean Time Between Defrost (MTBD  ), that 
satisfies the statistical relationship of 90% confidence. The test shall be 
repeated on at least one more unit of the model and until the Mean Time 
Between Defrost for the multiple unit tests (MTBD  ) satisfies the statistical 
relationship. If the time between defrosts is greater than 96  h (compressor ON 
time) and this defrost period can be repeated on a s econd unit, the test may be 
terminated at 96  h (T D ) and the absolute time value used for MTBD for each 
unit. 
5.1.9.         Tropical Climate Test  
                  All refrigerators, refrigerator -freezers and freezers shall be subjected to the 
following elevated ambient temperature test.  
                  The ambient temperature in the locations specified in Clause 3.3.4 shall be re -
set to 43 ±1ºC ( 109.4±2 ºF)  during the stabilization period and during the test 
period.  The relative humidity need not be controlled for this test.  
                  At the conclusion of operation under the Standard Testing Sequence or the 
Alternative Testing Sequence a ccording to Clause 5.2.7, the appliance under 
test shall be subjected to the elevated temperature test, without re -setting the 
appliance’s temperature setting   The test shall continue until the cabinet 
temperature and the freezer temperatures stabilize.  The average temperature of 
the freezer and cabinet shall not vary from the readings taken at the 32ºC 
(90ºF) ambient by more than ± 2.0ºC (3.6ºF).  
5.2              Freezers  
5.2.1           Test Conditions  
                   The general test conditions sha ll be in accordance with Clause 3, with additions 
or exceptions described in this clause.  
             Ambient Temperature and Relative Humidity  
i.     The ambient temperature in the locations specified in clause 3.3.4 shall 
be (32±1) ºC and the relative humidity s hall be (60±15)% during the 
stabilization period and during the test period.  
ii.      Representative ambient temperature for tropical climate shall be (43±1)ºC 
as a base for carrying out the test.  
When the unit is tested in accordance with Clause 5.2.7.4 the ambient 
temperature shall be 26.6±1.1ºC (80± 2ºF) dry bulb and 19.4± 0.6 ºC (67 ±1º F) 
wet bulb (52± 9% relative humidity) during the test period.  
Please refer GCC Specifications No. GCCS200001E/20001 - Classification of 
Service Conditions for supply o f Equipment / Materials.   
QATAR STANDARD  QS SASO 2664/2013  
 
    5.2.3           Defrost and Antisweat Heater Controls  
The defrost controls shall be operative for all tests conducted under this 
method.  
                   Tests shall be run with the antisweat heater switch in both the ON and OFF 
positions for each temperature control setting. The average consumption shall 
be the average of the energy consumptions measured with the anti -sweat 
heaters ON and OFF.  
The quick -freeze option shall be switched off unless otherwise specified.  
                Load Conditions  
Freezers with freezer compartment volumes exceeding 14.2 L (0.5 ft ), shall be 
tested in a package -loaded condition as described in Clause 5.2.5.2.  
5.2.5           Temperature Measurements  
5.2.5.1        General  
For those compartments te sted without load, temperatures shall be measured 
using weighted temperature sensors in accordance with Clause 3.2.2  
5.2.5.2        Freezer Compartment Temperature  
For freezers (where the freezer volume is greater than 14.2 L (0.5  ft ), freezer 
compartment temperatures shall be measured at the geometric centre of the 
filled packages described in Clause 3.2.3, with packages located so that 
temperature measurement stations approximate the locations shown in 
Figures  2  and 3.  
Alternatively, chest an d upright freezers may be tested in the unloaded 
condition as specified in Clause           
Temperatures shall be measured by unweighted thermocouples, located in the 
geometrical centre of packages in accordance with Clause 3.2.3.  
Where required, freezer co mpartment door shelves shall be loaded with the 
maximum number of filled packages that can be retained on each shelf without 
added restraints.   
If the interior arrangements of the freezer compartment shelves do not conform 
with those shown in Figure 3,  m easurements shall be taken at locations 
selected to represent the intent of this Standard. The locations selected shall be 
reported.  
The reported temperature of the freezer compartment shall be the average of 
the temperatures recorded at the locations show n in Figures 2 and 3.  
5.2.5.3       Alternative to Using a Freezer Load  
Chest and upright freezers may be tested without a load provided the 
thermocouples are weighted according to Clause  3.2.2 and satisfactory proof of 
the correlation factor used to calc ulate the final test results as a loaded freezer 
is provided. Satisfactory proof shall be deemed to have been accomplished 
upon the presentation of data consisting of:   
QATAR STANDARD  QS SASO 2664/2013  
 
     
(a)    the average of the differences measured in testing five units without load 
and t he same five units loaded in accordance with Clause 5.2.5.2; and  
(b)  where the five unit comparative test has a maximum useable life, as 
"significant proof", of five years. That is to say that manufacturers would 
have to do the five unit correlation test on each size (refrigerated volume 
based) of product, once every five years, whether the retesting was 
warranted or not.  
5.2.6           Temperature Control Settings  
5.2.6.1        Models With No User Operable Temperature Control  
Compartment temperatures an d energy consumption shall be measured with  
(a)    the temperature control operating; and  
(b)   the temperature control electrically short -circuited to cause the compressor 
to run continuously. If the model has a quick freeze option, it shall be 
used to b ypass the temperature control.  
5.2.6.2        Models with User Operable Temperature Control  
                   Testing shall be performed in accordance with the standardized reference 
temperature for a freezer temperature, of -17.8°C ( 0°F).  
               Testing Sequence  
5.2.7.1       Standard Testing Sequence  
The following two tests shall be performed in sequence: the first test shall be 
performed at the mid -position setting of the temperature control.  The second 
test shall be performed at either the maximum or minimum temperature mark 
indicated on the control dial, whichever is appropriate to attempt to achieve 
compartment temperatures measured during the two tests that frame (ie, one 
falls above and one falls below) the standardized reference tempera ture for the 
type of product under test.  
(a)    All compartment temperature controls shall be set at the median position, 
midway between the warmest and coldest settings. Knob detents shall be 
mechanically defeated if necessary to attain a median setting.  
All compartment temperature controls shall be set at their warmest or coldest 
settings (not electrically or mechanically bypassed), whichever is appropriate 
to attempt to achieve compartment temperatures measured during the two tests 
that frame (ie, one fa lls above and one falls below) the standardized reference 
temperature for the type of product under test.  
If the compartment temperatures measured during these two tests frame the 
appropriate standardized reference temperature, then these test results shal l be 
used to determine energy consumption for a given setting of the antisweat 
heater switch.  
 
If the compartment temperatures, measured with all controls set at their  
QATAR STANDARD  QS SASO 2664/2013  
 
    warmest setting, fall below the standardized reference temperature then the 
result of th is test alone shall be used to determine energy consumption for a 
given setting of the antisweat heater switch.  
5.2.7.2        Alternative Testing Sequence  
As an alternative to tests in Clause 5.2.7.1, the first test may be performed as 
follows:  
i)     all temperature controls shall be set at their warmest setting;  
ii)    if either compartment temperature is above the reference temperature, 
testing shall proceed as specified in Clause 5.2.7.1.(a); and  
iii)     if compartment temperatures fall below the appr opriate 
standardized reference temperature, the results of this test alone shall 
be used to determine energy consumption and  
iv)     the results of this test alone shall then be used to determine energy 
consumption for a given setting of the antisweat heat er switch.  
5.2.7.3        Non -Compliance and Product Description  
In the standard and alternative testing sequences, the conditions of 
noncompliance with prescribed thermal performance shall be as follows:  
 (a)   if, with all compartment controls set at the ir coldest settings, the ambient 
temperature is 32ºC, and the freezer temperature is still above the 
standard operating temperature specified in Clause  5.2.6.2, the product 
description shall be changed to agree with that description appropriate to 
the meas ured temperature;and  
 (b)   energy consumption shall then be declared in accordance with the revised 
product  description.  
 (c)    if, with all compartment temperature control settings at the same or lower 
temperature setting than during either the Standard Testing Sequence or 
Alternative Testing Sequence and the ambient temperature at 43ºC and 
the freezer temperatures rises m ore than 2ºC above the standard operating 
temperature, energy consumption shall then be declared in accordance 
with the revised product  description.  
5.2.7.4        Variable Defrost Control - Optional Test  
After a steady -state condition is achieved, the op tional test requires door 
openings for 12 ± 2 s every six freezer compartment door openings per 24  h 
period. The first freezer door opening shall four hours after the initiation of the 
test. The doors are to be opened 60° to 90° with an average velocity fo r the 
leading edge of the door of approximately 0.6 m/s (2 ft/s). Prior to the initiation 
of the door opening sequences, the defrost control mechanism may be 
reinitiated in order to minimize the test duration.  
 
 
5.2.8           Test Period   
QATAR STANDARD  QS SASO 2664/2013  
 
    5.2.8.1        G eneral  
Tests shall be performed by establishing the conditions specified in Clause  5.2  
and by using the control settings as specified in Clauses  5.2.6 and 5.2.7.  
5.2.8.2        Manual, Semiautomatic, and Partial Automatic Defrost  
The test time period shal l begin after steady -state conditions have been 
achieved and shall continue for at least three hours.  
During the test period, the compressor motor shall complete two or more whole 
compressor cycles (a compressor cycle shall be a complete ON and a complete 
OFF period of the motor). If no OFF period occurs, as determined during the 
stabilization period, the test period shall be 3 h.  
If incomplete cycling (less than two compressor cycles) occurs during a 24 h 
period, the results from the 24 h period shall stil l be used.  
5.2.8.3       Automatic Defrost  
If the model tested has an automatic defrost system, the test period shall begin 
after steady -state conditions have been achieved and shall run from one point 
during a defrost period to the same point during the n ext defrost period.  
If the model being tested has a long -time automatic defrost system, the 
alternative provisions of Clause  5.2.8.4 may be used. If the model being tested 
has a variable defrost control, the provisions of Clauses  5.2.8.5 or  5.2.8.6 
shall apply.  
5.2.8.4        Long -time Automatic Defrost  
If the model being tested has a long -time automatic defrost system, the test 
time period may consist of two parts. The first part would be the same as the 
test for a unit having no defrost provision (see  Clause 5.2.8.2). The second part 
would start when a defrost period is initiated during a compressor ON cycle 
and terminate at the second turn ON of the compressor motor or after 4  h, 
whichever comes first.  
5.2.8.5       Variable Defrost Control  
If the mod el being tested has a variable defrost control system, the test shall 
consist of three parts. The first two parts shall be the same as the test for long -
time automatic defrost specified in Clause.5.2.8.4. The third part shall be the 
optional test to determ ine the mean time between defrosts (see Clause 5.2.8.6). 
The third part shall be used by manufacturers who choose not to accept the 
default value of F of 0.20 to calculate T D    (See Clause 6.2.1.4).  
5.2.8.6        Mean Time Between Defrost (MTBD)  
After st eady-state condition with no door openings is achieved,  the test shall 
be continued using the above daily door -opening sequence in accordance with 
Clause 5.2.7.4 until stabilized operation is achieved. Stabilization is defined as 
a minimum of three consec utive defrost cycles with times between defrosts that 
will allow the calculation of a Mean Time Between Defrost (MTBD  ), that 
satisfies the statistical relationship of 90% confidence. The test shall be 
repeated on at least one more unit of the model and un til the Mean Time  
QATAR STANDARD  QS SASO 2664/2013  
 
    Between Defrost for the multiple unit tests (MTBD  ) satisfies the statistical 
relationship. If the time between defrosts is greater than 96  h (compressor ON 
time) and this defrost period can be repeated on a second unit, the test may be 
terminated at 96  h (T D ) and the absolute time value used for MTBD for each 
unit. 
5.2.9           Tropical Climate Test  
All refrigerators, refrigerator freezers and freezers shall be subjected to the 
following elevated ambient temperature test.  
The ambient temperature in the locations specified in Clause 3.3.4 shall be re -
set to  43.0±1ºC, (109.4±2) ºF during the stabilization period and during the 
test period.  The relative humidity need not be controlled for this test.  
At the conclusion of operation under the Standard Testing Sequence or the 
Alternative Testing Sequence according to Clause 5.2.7, the appliance under 
test shall be subjected to the elevated temperature test, without re -setting the 
appliance’s temperature setting  The test shall continue until  the cabinet 
temperature and the freezer temperatures stabilize.  The average temperature of 
the freezer and cabinet shall not vary from the readings taken at the 32ºC 
(90ºF) ambient by more than ± 2.0ºC (3.6ºF).  
            CALCULATING THE ENERGY CONSUMPT ION OF 
REFRIGERATORS, REFRIGERATOR -FREEZERS AND FREEZERS  
6.1              Refrigerators and Refrigerator -Freezers  
6.1.1           Per Day Energy Consumption  
6.1.1.1        General  
The energy consumption  for each test period shall be the energy expended 
during the test period, as specified in Clause  5.1.8 , adjusted to a 24  h period. 
This adjustment shall be determined as specified in Clause 6.1.1.2. If the model 
has a user -operable  anti-sweat heater control, the energy consumption shall be 
the average of the consumptions measured with the anti -sweat heaters ON and 
OFF.  
6.1.1.2        Manual, Semiautomatic, and Automatic Defrost Models  
The energy consumption in kW∙h/d shall be calcu lated according to the 
formula  
 
Tk x 1440 x E = EP
T
 
where  
ET  =  test cycle energy expended, kW∙h/d  
EP  = energy expended during the test period as specified in Clause  5.1.8,  
kW∙h  
1440 = conversion factor to adjust to a 24 h period, min/d   
QATAR STANDARD  QS SASO 2664/2013  
 
    k = 1.0, a correction factor for refrigerators and refrigerator -freezers, 
dimensionless  
T   = length of time of the test period, min  
6.1.1.3        Long -time Automatic Defrost  
If the two -part test method is used, the energy consumption shall be calculated 
as 
DPTk
TTE12E + 
TEk x  x 1440 = E
12
1 P
1P
T21 







 
where  
ET     =   test cycle energy expended, kW∙h/d  
1440 =   conversion factor to adjust to a 24 h period, min/d  
k       =   1.0, a correction factor for refrigerators and refrigerator -freezers, 
dimensionless  
EP1    =  energy expended during  the first part of the test as specified in Clause 
       , kW∙h  
EP2   =   energy expended during the second part of the test as specified in 
Clause        , kW∙h  
T      =    length of time of the first part of the test, min  
T     =     length of time of t he second part of the test, min  
    =      conversion factor to adjust to a 50% run time of the compressor, 
h/day  
TD  =    defrost timer run time required to go through a complete cycle to 
the nearest tenth hour per cycle, h  
6.1.1.4       Variable Defrost Control  
The energy consumption shall be calculated as  
DPTk
TTE12E + 
TEk x  x 1440 = E
12
1 P
1P
T21 







 
where  
ET     = test cycle energy expended, kW∙h/d as specified in clause          
     =  conversion factor to adjust to a 24 h period, min/d  
k       =  1.0 a correction factor for refrigerators and refrigerator -freezers,  
                 dimensionless  
EP1    = energy expended during the first part of the test, as specified in  
                 Clauses        , kW∙h   
QATAR STANDARD  QS SASO 2664/2013  
 
    EP2  =       energy expended during th e second part of the test as specified in   
                Clause        , kW∙h  
T    = length of time of the first part of the test, min  
T    = length of time of the second part of the test, min  
    = conversion factor to adjust to a 50% run time of the c ompressor,   
                 h/day  
TD  = defrost timer run time required to go through a complete cycle to the         
nearest one -tenth hour per cycle, h  
               and 
                                                        
T + )T - T( x FT x T = T
D D DD D
D
min min maxmax min  
where  
TD min  = least of shortest time between defrosts in one -tenth of an hour  
                (greater than or equal to six but less than or equal to 12 h), h  
TD max =   maximum time between defrost cycles in one -tenth of an hour  
                (great er than T D min but not more than 96 h), h  
F        =  ratio of per day energy consumption in excess of the least energy 
and the maximum differences in per day energy consumption  
and 
 
 
 
 
where  
TDT =    defrost time required to go thro ugh a complete cycle to the nearest 
one-tenth of an hour per cycle, h  
A value of 0.20 may be used for F in lieu of testing for T D 
For demand defrost models with no values for T Dmin and T Dmax in the 
algorithm, the default values of 12 and 84 shall be used, respectively.  
6.1.1.5       Optional Test Method for Variable Defrost Controls  
For refrigerators and refrigerator -freezers with variable defrost controls, the 
defrost timer run time required to go through a complete cycle shall be 
determined according to the following formula:  
0.5 x MTBD = TD
 
 
T1 - 
T1T1 - 
T1
 = F
maxD DD D
minmax






  
QATAR STANDARD  QS SASO 2664/2013  
 
    where  
TD       = defrost timer run time required to go through a complete 
cycle to the    nearest tenth hour per cycle, h  
MTBD =  mean time between defrosts  
 
                                             
nT
= MTBDin
1=i  
 
where  
Ti =    time between defrost cycles, number (i -1) and i, h  
n =    number of complete defrost cycles  
6.1.2           Average Per -Cycle Energy Consumption  
6.1.2.1        All -Refrigerator Models  
The average per -cycle energy consum ption shall be expressed in kW∙h per 
cycle to the nearest one -hundredth (    ) kW∙h, and shall depend upon the 
temperature attainable in the fresh food compartment, as shown below.  
6.1.2.2       Case 1  
If for each control setting, the fresh food compartmen t temperature remains 
below 3.3°C (38°F),  the average per -cycle energy consumption shall be 
reported as:  
                                                       
E = E1T  
where  
E =  the total per -cycle energy consumption, kW∙h/d  
ET1= test cycle energy expended during the first test cycle during which   the 
highest fresh food compartment temperature is measured, kW∙h/d  
6.1.2.3       Case 2  
If one of the fresh food compartment temperatures measured for a test period is 
greater than 3.3°C (38° F), the average per -cycle energy consumption shall be 
calculated as  
 




T - TT - 3.3  )E - E( + E = E
R RR
T T T
1 21
1 2 1
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
    where  
E  =      the total per -cycle energy consumption, kW∙h/d  
ET1 =     test cycle energy expended during the first test cycle during which the 
highest fresh food compartment temperature is measured, kW∙h/d  
ET2 =    test cycle energy expended during the second test cycle during which 
the highest fresh food compartment temperature is measured, kW∙h/d  
     =     the standardized reference temperature for an all -refrigerator 
fresh food compartment, °C  
TRI  =   the fresh food compartment temperature determined according to 
Clause  5.1.5 during the first test, °C  
TR2 =  the fresh food compartment temperature determined according to 
Clause  5.1.5 during the second test , °C  
6.1.3           Basic Refrigerators and Refrigerator -Freezers  
6.1.3.1        General  
The average per -cycle energy consumption shall be expressed in kW∙h per 
cycle to the nearest (    ) kW∙h, and shall be defined, as applicable, according 
to clause        -         
6.1.3.2        Case 1  
          If, for each control setting, the fresh food compartment temperature remains 
below + 7.2°C (45°F) and the freezer compartment temperature below - 9.4°C 
(15°F) in the case of a basic refrigerator or - 15°C (5 °F) in the case of a 
refrigerator -freezer, the per -cycle energy consumption shall be  
 
 
where  
 
E =  the total per -cycle energy consumption, kW∙h/d  
ET1= test cycle energy expended during the first test cycle during which the 
highest freezer compartment temperature is measured, kW∙h/d  
For a graphical representation of this Clause, seeSubclause 6.1.4.  
           If the first test produces average compartment temperatures that fall into 
quadrants B, C,  or D, then the second test shall be performed with all controls 
at their coldest setting(s).  
 
 
If the first test produces average compartment temperatures that fall into 
quadrant A, then the second test shall be performed with all controls at their 
1TEE 
QATAR STANDARD  QS SASO 2664/2013  
 
    warmes t setting(s).  
            If in following the requirements of Clause 6.1.3.2.2, the second test at the 
coldest setting(s) produces average compartment temperatures that still fall into 
quadrants B or C, the product has not met the thermal performance defin ition.  
If in following the requirements of Clause 6.1.3.2.2, the second test at the 
coldest setting(s) produces average compartment temperatures that fall into 
quadrant D, then the product description shall be changed, ie, a -15°C freezer 
may become a -9°C frozen food compartment, or a -9°C frozen food 
compartment may become an ice -making compartment only.  
            If in following the requirements of Clause 6.1.3.2.3, the second test at the 
warmest setting(s) produces average compartment temperatures tha t still fall 
into quadrant A, then the energy consumption limit shall be declared at this 
warmest point.  
6.1.3.3        Case 2  
If the conditions of Clause 6.1.3.1 do not exist, the per -cycle energy 
consumption shall be taken as the higher of the two values calculated according 
to following equations,  


T - TT - 7.2 x )E - E( + E = E
1R 2R1R
1T 2T 1T
 
where  
E  =     the total per -cycle energy consumption, kW∙h/d  
ET1 =     test cycle energy expended during the first test cycle during which   the 
highest fresh food compartment temperature is measured, kW∙h/d  
ET2 =     test cycle energy expended during the second test cycle during which 
the highest fresh food compartment temperature is measured, kW∙h/d  
7.2  = the standrdized reference temperature for the specified fresh food 
compartment, °C  
TR1 =  the fresh food compartment temperature determined according to 
Claus e 5.1.5 during the first test, °C  
TR2 =  the fresh food compartment temperature determined according to 
Clause  5.1.5 during the second test, °C  
and 
 


T - TT - J  )E - E( + E = E
1F 2F1F
1T 2T 1T
  
QATAR STANDARD  QS SASO 2664/2013  
 
    where  
E =       the total per -cycle energy consumption, kW∙h/d  
ET1=     test cycl e energy expended during the first test cycle during which the 
highest fresh food compartment temperature is measured, kW∙h/d  
ET2=     test cycle energy expended during the second test cycle during which 
the highest fresh food compartment temperature is me asured, kW∙h/d  
J =      a constant of -9.4 for basic refrigerators or -15 for refrigerator -
freezers, these being the standardized reference freezer compartment 
temperatures, °C  
TF1 = the freezer compartment temperature determined according to 
Clause  5.1.5 during the first test, °C  
TF2 = the freezer compartment temperature determined according to 
Clause  5.1.5 during the second test, °C  
               Graphical Interpretation of Cla use 6.1.3.2  
Note: This Appendix is not a mandatory part of this Standard but is written in 
mandatory language to accommodate its adoption by anyone wishing to do so.  
 
 
 
 Freezer or Frozen Food                                   D                                                       
C            
             Compartment Temperature  
 
 
                                                       -9°C or  
                                                       -15°C  
 
 
     
                                                       A                                                       B  
  
 
 
                                              
                                                             -25°C  
 
                                                                          0°C                                                          5°C  
                                                                            Fresh food compartment temperature  
 
Figur e 6.1.4.1  
  
QATAR STANDARD  QS SASO 2664/2013  
 
                  Depending on the result of the first test, one of the following procedures shall 
be performed:  
(a)   If the first test produces average compartment temperatures that fall into 
quadrants B, C, or D in the graph shown in Figure 6.1. 4.1, the second test 
shall be performed with all controls at their coldest setting(s).  
(b)   If the first test produces average compartment temperatures that fall into 
quadrant A, the second test shall be performed with all controls at their 
warmest settin g(s). 
              If, following Clause 6.1.4.1 (a), the second test at the coldest setting(s) 
produces average compartment temperatures that still fall into quadrants B or 
C, the product has not met the thermal performance definition.  
If, following Claus e 6.1.4.1 (a), the second test at the coldest setting(s) 
produces average compartment temperatures that fall into quadrant D, the 
product description shall be changed (i.e., a -   C freezer may become a -  C 
frozen food compartment, or a -  C frozen food c ompartment may become an 
ice-making compartment only).  
           If, following Clause 6.1.4.1  (b), the second test at the warmest setting(s) 
produces average compartment temperatures that still fall into quadrant A, the 
energy consumption limit shall be declared at this warmest point.  
            Freezers  
                Per Day Energy Consumption  
6.2.1.1        General  
The energy consumption in kW∙h/d for each test period shall be the energy 
expended during the test period, as specified in Clause  5.2.8, adjusted to a 24  h 
period. This adjustment shall be determined  as specified in Clause 6.2.1.2.  
6.2.1.2        Manual, Semiautomatic, and Automatic Defrost Models  
The energy consumption in kwh/d shall be calculated according to the formula  
 
Tk x 1440 x E = EP
T
 
       where  
ET   = test cycle energy expended, kWh/d  
EP   = energy expended during the test period, kWh as specified in Clause 
         
     =  conversion factor to adjust to a 24 h period, min/d  
k    = a correction factor, to adjust for average usage of 0.7 for 
chest freezers and 0.85 for upright freezers, di mensionless  
T   =  length of time of the test period, min   
QATAR STANDARD  QS SASO 2664/2013  
 
    6.2.1.3        Long -time Automatic Defrost  
If the two -part test method is used, the energy consumption shall be calculated 
according to the following formula,  
                      
DP PTk
TTE E12 + 
TEK x  x 1440 = E
12
1 2
11P
T






  
where  
ET     =   test cycle energy expended, kW∙h/d  
1440 =   conversion factor to adjust to a 24 h period, min/d  
k    =     a correction factor to adjust for average usage of 0.7 for chest   freezers 
and 0.85 for upright freezers, dimensionless  
EP1   =    energy expended during the first part of the test, kWh  
EP2   =    energy expended during the second part of the test, kWh  
T     =    length of time of the first part of the test, min  
T     =   length of time of the second part of the test, min  
     =    conversion factor to adjust to a 50% run time of the compressor, 
h/day  
TD    =  defrost timer run time required to go through a complete cycle to 
the nearest one -tenth of an hour per cycle, h  
6.2.1.4       Variable Defrost Control  
The energy consumption  shall be calculated according to the following 
formula,  
DP PTk
TTE E12 + 
TEK x  x 1440 = E
12
1 2
11P
T







 
 
where  
ET     =   test cycle energy expended, kWh/d as specified in Clause 5.2.8.5.  
1440 =   conversion factor to adjust to a 24 h period, min/d  
k    =    a correction factor t o adjust for average usage of 0.7 for chest freezers 
and 0.85 for upright freezers, dimensionless  
EP1 =    energy expended during the first part of the test, kWh as specified in 
Clause 5.2.8.5.  
EP2=      energy expended during the second part of the test, kWh as specified 
in Clause 5.2.8.5  
T   =       length of time of the first part of the test, min  
T   =       length of time of the second part of the test, min  
   =       conversion factor to adjust to a 50% run time of the compressor,  
QATAR STANDARD  QS SASO 2664/2013  
 
    h/day  
TD =     defrost timer run time required to go through a complete cycle to 
the nearest one -tenth of an hour per cycle, h  
and 
T + )T - T( x FT x T = T
D D DD D
D
min min maxmax min
 
where  
TD min = the shortest time between defrosts in one -tenth of an hour (greater    
than or equal to six but less t han or equal to 12 h), h  
TD max = maximum time between defrost cycles in one -tenth of an hour (greater 
than T D ma but not more than 96 h), h  
F   =      ratio of per day energy consumption in excess of the least energy 
and the maximum  differences  in per day energy consumption  
          where  
 
TDT  = defrost timer run time required to go through a complete cycle to the   
nearest one -tenth of an hour per cycle, h  
A value of .20 may be used for F in lieu of testing to findT DT 
For demand  defrost models with no values for  T DMIN and  T DMAX  in the 
algorithm, the default values of 12 and 84 shall be used, respectively.  
               Optional Test Method for Variable Defrost Controls  
For freezers with variable defrost controls, the defrost timer run  time required 
to go through a complete cycle shall be determined according to the following 
formula,  
0.5 x MTBD = TD
 
 
where  
TD =     defrost timer run time required to go through a complete cycle to 
the nearest tenth hour per cycle, h  
MTBD = mean t ime between defrosts  
  
T1 - 
T1T1 - 
T1
 = F
maxD DD
minmax







DT  
QATAR STANDARD  QS SASO 2664/2013  
 
    and 
nT
= MTBDin
1=i
 
 
where  
Ti = time between defrost cycles number (i -1) and i, h  
n = number of complete defrost cycles  
6.2.2           Average Per -Cycle Energy Consumption  
6.2.2.1        General   
The average per -cycle energy consumption of upright and chest freezers shall 
be expressed in kWh per cycle to the nearest 0.01  kWh, and shall depend upon 
the compartment temperature attainable, as shown in Clauses 6.2.2.2 and 
         
6.2.2.2        Case 1  
If, for each control setting , the compartment temperature remains below -
17.8°C (0°F), the average per -cycle energy consumption shall be taken as  
 
 
where  
E =  the total per -cycle energy consumption, kWh/d  
ET1= test cycle ene rgy expended during the first test cycle during which the 
highest freezer compartment temperature is measured, kWh/d  
6.2.2.3        Case 2  
If one of the compartment temperatures measured for a test period is greater 
than  -17.8°C (0°F), the average per-cycle energy consumption shall be taken 
as: 
 
                                    


T - TT - 17.8-  )E - E( + E = E
1F 2F1F
1T 2T 1T  
where  
E  =      the total per -cycle energy consumption, kWh/d  
ET1 =     test cycle energy expended during the first test cycle during which the 
highest freezer compartment temperature is measured, kWh/d  
ET2 =    test cycle energy expended during the second test cycle during which 
1TEE 
QATAR STANDARD  QS SASO 2664/2013  
 
    the highest freezer compartment temperat ure is measured, kWh/d  
-17.8 =   the standardized reference compartment temperature for freezers, °C  
TF1 = the freezer compartment temperature determined according to 
Clause  5.2.5 during the first test, °C  
TF2 = the freezer compartment temperature determi ned according to 
Clause  5.2.5 during the second test, °C  
6.2.3          Compressor Running Time Percent  
6.2.3.1       General  
The compressor running time is calculated as  
 
                                    
TT = R
Totalon  
where  
R =       The rati o of the compressor running time, dimensionless  
Ton=    the duration of the compressor operation during a whole number of 
cycles, min  
TTotal =   the total duration of the whole number of compressor operating 
cycles, min  
6.2.3.2        Manual Defrost Freez ers 
For manual defrost freezers, the compressor running time shall be reported for 
the largest whole number of compressor operating cycles during the test period 
defined in Clause 5.1.8.  
6.2.3.3        Automatic Defrost Freezers  
For automatic defrost freezers, the compressor running time shall be reported 
for the largest whole number of compressor operating cycles during the test 
period defined in Clause 5.1.8.  
6.2.3.4        Long -time Automatic Defrost  
For long -time automatic defrost freezers, the com pressor running time shall be 
reported as calculated in clause 5.1.8.4.  
6.2.3.5        Variable Defrost  
For variable defrost freezers, the compressor running time shall be reported as 
calculated in Clause 5.1.8.5.  
               Calculation of Freezing Cap ability  
6.2.4.1        Applicability  
Freezing capability shall be calculated for upright and chest freezers only.  
The freezing capability of a food freezer shall be the reserve refrigerating 
capability of the freezer, expressed in kg of ice per 24  h, under  the operating  
QATAR STANDARD  QS SASO 2664/2013  
 
    conditions specified in Clause   .   
6.2.4.2        Freezing Capability  
The freezing capability shall be calculated from the cyclical running time of the 
refrigerant compressor and the compressor manufacturer's verified published 
thermal perf ormance data as  
                                       
R) - (1  QC  24 = Fc  
where  
FC =  the freezing capability interpolated to the reference temperature of - 
17.8°C, kg/24  h 
C  =   the compressor thermal rating in watts, at  
(a)     -23.3°C evaporating temperature;  
(b)     54.4°C condensing temperature;  
(c)     32.2°C ambient temperature;  
(d)     32.2°C liquid temperature; and  
(e)     32.2°C suction gas temperature.  
Q =  140.7 W·h, the energy required to convert 1 kg of water at 32.2°C to 
ice at -17.8°C, W·h  
R =  the  ratio of the running time of the compressor as determined in 
Clause 6.2.3, dimensionless  
 
           MAXIMUM ENERGY CONSUMPTION LIMITS FOR 
REFRIGERATORS , REFRIGERATOR -FREEZERS AND FREEZERS  
7.1              Adjusted Volume of Refrigerators and Refrigerator -Freezers  
7.1.1           General  
As specified in Clause 4.1, the adjusted volume of a refrigerator shall be 
determined according to the following formul a: 
 
                                
AF) x V( + V = AVfreezer food fresh  
where  
AV           =     the adjusted volume, L  
V fresh food  =   the volume of the fresh food compartment of a refrigerator as 
determined in Clause 4.1, L  
V freezer  =  the volume of the freezer compartment of a refrigerator as 
determined in Clause 4.1, L  
AF =     an adjustment factor as determined in Clause 7.1.2   
QATAR STANDARD  QS SASO 2664/2013  
 
     
7.1.2           Adjustment Factor  
               The adjustment factor shall be calculated according to the following formula:  
                                         
)t - t()t - t( = AF
FF AFSR A  
where  
AF =      the adjustment factor, dimensionless  
tA   =      the ambient temperature in the test room, 32°C  
tFSR =      the standardized reference freezer compartment temperature, °C  
tFF  =      the average fresh food compartment operating temperature, 
3.3°C  
7.1.2.2        Basic Refrigerators  
For basic refrigerators, the adjustment factor AF shall be calculated as follows:  
 
                                
421.4 = 3.3 - 32(-9.4) - 32 = AF  
               All-Refrigerators  
For all -refrigerators, the adjustment factor shall be 1.00.  
7.1.2.4        Refrigerator -Freezers  
For refrigerator -freezers, the adjustment factor AF shall be calculated as 
follows:  
                                     
71.63 = 3.3 - 32(-15) - 32 = AF  
7.2              Adjusted Volume of Freezers  
7.2.1        As specified in Clause 4.4, the adjusted volume of chest and upright freezers 
shall be determined according to the following formula:  
 
                                         
AF x V = AVfreezer  
7.2.2        For chest and upright freezers, the adjustment factor AF shall be calculated as 
follows:  
 
                                         
51.73 = 3.3 - 32(-17.8) - 32 = AF  
7.3              Energy Consumption Limits for Refrigerators, Refri gerator -Freezers and 
Freezers  
Maximum energy consumption limits for refrigerators, Refrigerator -Freezers  
QATAR STANDARD  QS SASO 2664/2013  
 
    and Freezers are given in Tables   and  , expressed in kW∙h per year   
8.                SAMPLING PLAN  
8.1              Size of Sample  
For each basic m odel of refrigerator, refrigerator -freezer or freezer, a sample of 
sufficient size shall be tested to ensure that any represented value of estimated 
energy consumption (or other measure of energy consumption of a basic 
model) shall be no less than the high er of the  
(a)    mean of the sample; or  
(b)    upper 95% confidence limit of the true mean divided by 1.10.  
                   Note:   See the  Subclause 8.2 for further details . 
8.2              Explanation of Sampling Plan  
              General  
The following is an example of a statement involving an upper confidence limit 
(UCL) intended to clarify the use of the one -sided confidence limit concept.  
The basic equation used is  
                            
nS t  + X = Limit  Confidence Upper    
where  
X =  mean of sample  
t =  value in the table below  
S =  sample standard deviation  
n =  number of samples tested  
 
No. of samples, n  n t  for  95% confidence  
               
               
               
               
                   
  
QATAR STANDARD  QS SASO 2664/2013  
 
    8.2.2           Example  
    confidence  
X = 150 kWh, S = 10, n = 2  
t (from table) = 6.314  
195 = 
210  6.314 + 150  UCL  
 
Clause 8 of this Standard requires that the represented value of energy 
consumption shall be no less than the higher of the  
(a)   mean of the sample (ie, 150); or  
(b)   upper 95% confidence limit divided by 1.10  
 ie 
177 = 1.10195  
In this example, the label figure would be not less than 177.  
              Advantage of taking a larger sample:  
Say n = 3; then t = 2.920  
                               
167 = 
310  2.920 + 150 + UCL   
therefore:  
                                
152 = 1.10167 =  valuelabel the  
By taking three samples instead of two, the label figure has been reduced from 
167 to 152.  
However,  
If four samples are taken, t = 2.353, and  
                                    
162 = 
410 x 2.353 + 150  UCL  
And for Case B (see example in Subclause 8.2.2(b))  
                                        
147 = 1.10162  
Because the mean (150) is higher than in Case B, the label figure shall be no 
lower than 150. Consequently, there is no adva ntage to a sample of more than 
four units.  
  
QATAR STANDARD  QS SASO 2664/2013  
 
               DATA TO BE REPORTED  
9.1              Refrigerators and Refrigerator -Freezers  
The following data shall be reported  
(a)     type, model, class, serial number, if any, and manufacturer or brand name 
of unit; 
(b)     maximum energy consumption limit as specified in Tables 1 and 2;  
(c)     refrigerator volume and freezer volume; and  
(d)    total energy consumption in kWh per  year according to Clause 7.3.  
9.2              Freezers  
The following data shall be recorded:  
(a)     type, model, date, serial number, if any, and manufacturer or brand name 
of unit;  
(b)     maximum energy consumption limit as specified in tables 1 and 2;  
(c)     freezer volume;  
(d)     total energy consumption in kWh per year as spec ified in Clause 7.3;  
(e)   the freezing capability as expressed in kg/24h for chest and upright 
freezers, at a standardized compartment temperature of -17.8°C.  
  
QATAR STANDARD  QS SASO 2664/2013  
 
    Table 1 - Maximum Annual Energy Consumption Limits for Refrigerators, Refrigerator -
Freezers an d Freezers in SI Units  (See Clauses 7.3, 9.1, and 9.2)  
 
Product Type  Energy Consumption Limits  
(1)  Refrigerators and refrigerator -freezers with  
manual defrost  0.31 AV + 248.4  
(2)  Refrigerator -freezers with partial automatic 
defrost  0.31 AV + 248.4  
(3)  Refrigerator -freezers with automatic defrost 
with top -mounted freezer without through -the-
door ice service, and all refrigerators with 
automatic defrost  0.35 AV + 276  
(4)  Refrigerator -freezers with automatic defrost 
with side -mounted freezer without  through -
the-door ice service  0.17 AV + 507.5  
(5)  Refrigerator -freezers with automatic defrost 
with bottom -mounted freezer without through -
the-door ice service  0.16 AV + 459.0  
(6)  Refrigerator -freezers with automatic defrost 
with top -mounted freezer wi th through -the-
door ice service  0.36 AV + 356.0  
(7)  Refrigerator -freezers with automatic defrost 
with side -mounted freezer with through -the-
door ice service  0.36 AV + 406.0  
(8)  Upright freezers with manual defrost  0.27 AV + 258.3  
(9)  Upright freezers  with automatic defrost  0.44 AV + 326.1  
(10)  Chest freezers and all other freezers  0.35 AV + 143.7  
(11)  Compact Refrigerators and Refrigerator - 
freezers with manual defrost  0.38 AV + 299.0  
(12)  Compact Refrigerator freezers with partial  
automatic de frost  0.25 AV + 398.0  
(13)  Compact Refrigerator freezers with automatic 
defrost with top -mounted freezer and compact 
all-refrigerators with automatic defrost  0.45 AV + 355.0  
(14)  Compact Refrigerator -freezers with automatic 
defrost with side -mounted freezer  0.27 AV + 501.0  
(15)  Compact Refrigerator -freezers with automatic 
defrost with bottom -mounted freezer  0.46 AV + 367.0  
 
(16)  Compact Upright freezers with manual 
defrost  
0.35 AV + 250.8  
 
(17)  Compact Upright freezers with automatic 
defrost   
0.40 AV + 391.0  
(18)  Compact Chest freezers and all other freezers  0.37 AV + 152.0  
 
*AV = Adjusted Volume in litres as defined in Clause 7.1 for refrigerators and refrigerator -freezers and in 
Clause 7.2 for freezers.  
Note:  The energy consumption limits are in effect at the time of publication. These values are continuously 
updated (approximately every three years) in line with global standards .  
QATAR STANDARD  QS SASO 2664/2013  
 
    Table 2 - Maximum Annual Energy Consumption Limits for Refrigerators, 
Refrigerator - Freezers and Freezers in Imperial Units  
 
Product Type  Energy Consumption Limits  
(1)   Refrigerators and refrigerator -freezers with manual 
defrost   
8.82 AV + 248.4  
( )   Refrigerator -freezers with partial automatic defrost   
8.82 AV + 248.4  
(3)   Refrigerator -freezers with automatic defrost with 
top-mounted freezer without through -the-door ice 
service, and all refrigerators with automatic defrost   
9.80 AV + 276  
(4)   Refr igerator -freezers with automatic defrost with 
side-mounted freezer without through -the-door ice 
service   
4.91 AV + 507.5  
(5)   Refrigerator -freezers with automatic defrost with 
bottom -mounted freezer without through -the-door 
ice service   
4.60 AV + 459.0  
(6)   Refrigerator -freezers with automatic defrost with 
top-mounted freezer with through -the-door ice 
service   
10.20 AV + 356.0  
(7)   Refrigerator -freezers with automatic defrost with 
side-mounted freezer with through -the-door ice 
service   
10.10 AV + 406.   
(8)   Upright freezers with manual defrost   
7.55 AV + 258.3  
(9)   Upright freezers with automatic defrost   
12.43 AV + 326.1  
(10)  Chest freezers and all other freezers   
9.88 AV + 143.7  
(11)  Compact Refrigerators and Refrigerator -freezers 
with manual  defrost   
10.70 AV + 299.0  
(12)  Compact Refrigerator freezers with partial 
automatic defrost   
7.00 AV + 398.0  
(13)  Compact Refrigerator freezers with automatic 
defrost with top -mounted freezer and compact all -
refrigerators with automatic defrost   
12.70 AV + 355.0  
(14)  Compact Refrigerator -freezers with automatic 
defrost with side -mounted freezer   
7.60 AV + 501.0  
(15)  Compact Refrigerator -freezers with automatic 
defrost with bottom -mounted freezer   
13.10 AV + 367.0  
(16)  Compact Upright freezers with manual defrost   
9.78 AV + 250.8  
(17)  Compact Upright freezers with automatic defrost   
11.40 AV + 391.0  
(18)  Compact Chest freezers and all other freezers   
10.45 AV + 152.0  
 
* AV =Adjusted Volume in cubic feet as defined in Clause 7.1 for  refrigerators and refrigerator -freezers and 
in Clause 7.2 for freezers.  
Note: The energy consumption limits are in effect at the time of publication. These values are continuously 
updated (approximately every three years) in line with global standards .   
QATAR STANDARD  QS SASO 2664/2013  
 
    10              ENERGY LABEL  
10.1           ENERGY EFFICIENCY STAR RATING  
–     From table 1 the maximum annual energy consumption limits can be 
obtained for product type ( 1 -   )   
–     These product type are subjected to accredited laboratories tests f or 
maximum annual energy consumption limits .  
–     According to the resuls of these tests the number of stars can be 
assigned as shown in table 3.  
Table 3 – Star Rating  
star rating  Annual energy consumption rating  
  For annual energy consumption for tested 
product less than by 5%  or equal for  the 
maximum annual energy consumption limits 
for Refrigerators, Refrigerator -Freezers and 
Freezers  
  For annual energy consumption for tested 
product less than by 10% of  the maximum 
annual energy consumption limits for 
Refrigerators, Refrigerator -Freezers and 
Freezers  
  For annual energy consumption for tested 
product less than by 15% of  the maximum 
annual energy consumption limits for 
Refrigerators, Refrigerator -Freezers and 
Freezers  
  For annual energy consumption for tested 
product less than by 20% of  the maximum 
annual energy consumption limits for 
Refrigerators, Refrigerator -Freezers and 
Freezers  
  For annual energy consumption for tested 
product less than by 25% of  the maximum 
annual energy consum ption limits for 
Refrigerators, Refrigerator -Freezers and 
Freezers  
  For annual energy consumption for tested 
product less than by 30% of  the maximum 
annual energy consumption limits for 
Refrigerators, Refrigerator -Freezers and 
Freezers  
 
Note: Increasing the increments between the star ratings from 5% currently to 10% will be considered in 
future issues of this standard.  
 
11.              PRINTING AND PLACEMENT OF ENERGY LABELS   
QATAR STANDARD  QS SASO 2664/2013  
 
    11.1       Placement The energy label shall be attached to the upper portion of each 
appliance on the outside of the door of an upright appliance and on the lid of an 
appliance of chest configuration  
                   In the case of a chest configured appliance where the lid  is the lift -off type (i.e. 
not attached by the hinge or similer) or, if the lid surface is unstable for 
attachment of label, then the label shall be attached in the conspicuous location 
on the front of the appliance .  
            Material and shape the la bel is to be self -adhesive and cut to one of the outlines 
shown in figure11.1  
11.3           COLOURS   The label is to be printed in three colours on a white background 
as illustrated in figure11.1 .  
Note : for general information regarding printing of the label,  refer to appendix 
A.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
 
 
FIGURE 11.1 DETAILS OF LABEL  
Legend  
a      = this band is cut off according to the appliance’s energy stars rating. Note that whole stars appear 
only when the continuous band of colour reaches the next number.  
b , b  = the panels contain the  annual energy consumption for tested unit  
(kwh/y) . The figures that apply to the particular appliance shall be of the font and size indicated 
and centred in the panel. The spacing between the figures of a three -figure number shall be the same 
as that for a four -figure number.  
c     =  the panel contains the wording “Energy Efficiency Label”  
 the fonts to be used on the label shall be all capitals for lettering  
 
 
 
 
11.4            Sample Label    
An example of a printed label for refrigerating appliance is in figure 11.2.  
Note : The brand and model names. appliance designation and annual energy 
consumption for tested unit ( kWh/y ) to be provided .  
Figure 11.2 Example Of Label  
 
            Label requirements and queries all of the information required to produce an energy label 
using modern printing techniques is contained either in this section or in appendix A, 
however additional materials to assisst in printing may be available. Any queri es 
regarding the printing of labels should be directed to Qatar Standards  
Logo to redesigned for Qatar 
Standard  
Label to red esigned for Qatar Standards   
QATAR STANDARD  QS SASO 2664/2013  
 
    
Appendix A  
ENERGY LABEL DIMENTIONS  
(INFORMATIVE )  
 
Most of the dimenstional information required to creat a valid energy label is given in figure A1  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
DIMENIONS IN MILLIMETERS  
 
FIGURE A1 – LABEL  
Logo to redeshged for Qatar Standards   
QATAR STANDARD  QS SASO 2664/2013  
 
    APPENDIX   B  
FORMAT OF APPLICATION FOR REGISTRATION  
(NORMATIVE)  
 
This appendix sets out the required format for submitting an appliaction for rgistration  
 
APPLICATION FOR REGISTRATION OR RENEWAL OF REGISTRATION OF 
ELECTRICAL APPLIANCE FOR ENERGY EFFICIENCY  
(please type or print)  
 
SECTION 1 APPLICATION DETAILS  
 
I hereby apply for registration of an electrical appliance for the purpose of energy 
labelling.  
 
In the Country of  ……………………………………………………………  
                                     ( specify the country in which this application is made  )  
 
SECTION 2 APPLICANT DETAILS  
 
Name of applicant  
…………………………………………………………………  
 
Name of company  
……………………………………………………………… …  
 
Business address  
……………………………………………………………………  
…………………………………………………………………………………
……  
 
P.O Box  
…………………… …… postcode………………………………………    
 
Contact person : (A name ,address and place of business in each country of sale  )  
Position / title  : 
………………………………………………………… ……………  
Tel (      ) ……………………………… facsimile  (      ) 
…………………………    
 
SECTION 3 DESCRIPTION OF APPLIANCE  
 
Designation 
:………………………………………………………………………                                                
(indicate which ) refrigerator , refrigerator/freezer , freezer  
 
Type : ………………………………………      
( refer to table 1)            
Country of manufacturer ………………………………   
QATAR STANDARD  QS SASO 2664/2013  
 
     
Brand name ………………………  Year model (s) first manufactured / 
imported………………   
 
(if registering a family of models , all with the same star rating . list all names and 
numbers)  
 
Model Number(s) 
…………………………………………………………………………………  
 
Model Number (s) to appear on label : 
……………………………………………………………  
Does this model or family replace or supplemen t another with the same star rating ?  
Yes / No 
……………………………………………………………………………………………  
If yes , which model (s) ?  
 
SECTION 4 TESTING AND TEST REPORT  
 
Where tests conducted at applicant's own facilities?...............................................yes / No  
 
Who conducted the tests ……………………………………………………………………  
 
Write test results recording sheets, as required for this appliance type , attached ?......yes/ 
No  
If not , why not ?..................................................................................... ...............................  
 
SECTION 5 SPECIFIC APPLIANCE DETAILS  
 
Rated Voltage (Volt):  ................................ ................................ ................................ ........................   
Rated Frequency (Hz): ................................ ................................ ................................ .......................   
 
ADJUSTED VOLUME  (refer to clause 7.1 and 7.2  )  
 
Record in the table below , the  Adjusted Volume values  
 
Adjusted volume, liters  ADJUSTED VOLUME  
  Adjusted Volume of refrigerator or refrigerator - 
freezer  
   Adjusted Volume of freezer  
  
QATAR STANDARD  QS SASO 2664/2013  
 
    ENERGY CONSUMPTION  
 
Product type (refer to table 1 )   
Energy consumption for tested unit ( kwh/d )   
Annual Energy consumption for tested unit  
( kwh/y )  
  
Star rating for tested unit  (use table 3 clause 
10 to obtain star rating )   
 
 
SECTION 6 DECLARATION  
I declare that the details stated above are correct  
Signature of applicant : ……………………… …   date 
……… ………… …………………  
 
Office use only  
Date received:…………………………… …… Registration number 
………  ………………  
 
 
APPENDIX C - References  
 
 ) AS/NJS 4474.2 : 1997  
 ) ANSI/AHAM HRF -  :     
 ) EN 153 (EUROPEAN STANDARDS)  
 ) CANADIAN STANDARDS : C300  
 ) ISO 8187  
 ) ISO 8561  
 ) ISO 7371  
 ) ISO 5155  
 ) ISO 15502  
 
 
 
 
 
 
 
 
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
  
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
  
  
 
  
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
   
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
Energy Performance and Capacity of Household Refrigerators, Refrigerator -Freezers and Freezers  
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
  
 
 
 
   
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
  
 
 
 
   
 
  
 
   
QATAR STANDARD  QS SASO 2664/2013  
 
     
  
 
 
  
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
 
   
QATAR STANDARD  QS SASO 2664/2013  
 
     
  
 
 
   
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
  
 
 
 
 
 
   
QATAR STANDARD  QS SASO 2664/2013  
 
     
  
 
  
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
   
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
   
 
 
   
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
 
 
   
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
  
 
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
  
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
  
 
 
 
  
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
  
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
   
QATAR STANDARD  QS SASO 2664/2013  
 
     
  
  
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
   
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
  
 
 
 
  
 
 
 
 
 
   
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
  
 
 
 
  
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
     
 
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
      
 
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
      
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013  
 
      
 
 
 
 
 
 
   
QATAR STANDARD  QS SASO 2664/2013  
 
      
 
 
 
 
 
  
QATAR STANDARD  QS SASO 2664/2013