GB/T 8059.2-1995 Household refrigeration appliances - refrigerators and freezers
Some standard content:
National Standard of the People's Republic of China
Household Refrigerating Appliances
Refrigerator-Freezer
Household refrigerating appliances--Refrigerator-freezer
GB/T 8059.2-1995
Replaces GB8059.2-87
This standard is equivalent to the international standard ISO8187:1991 "Refrigerating Appliances--Refrigerator-Freezer-1 Performance and Test Methods".
1 Subject Content and Scope of Application
This standard specifies the terminology, product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of refrigerators and freezers. This standard applies to closed motor-driven compression household refrigerators and freezers (hereinafter referred to as refrigerators and freezers) with a capacity of less than 500L. This standard does not apply to refrigerators and freezers for special purposes. 2 Reference standards
GB191 Packaging, storage and transportation pictorial symbols
GB1019 General rules for household appliances packaging
GB/T2423.17 Basic environmental test procedures for electrical and electronic products Test Ka: Salt spray test method GB2828 Batch inspection counting sampling procedures and sampling tables (applicable to inspection of continuous batches) GB2829 Periodic inspection counting sampling procedures and sampling tables (applicable to inspection of production process stability) Electrical and acoustic performance and test methods of sound level meters GB37851|| tt||GB/T4214 Determination of sound power level of household electrical appliances General safety requirements for household and similar electrical appliances GB4706.1
GB4706.13 Safety of household and similar electrical appliances Special requirements for household refrigerators and food freezers Environmental conditions for application of electrical and electronic products Storage GB4798.1
GB4798.2 Environmental conditions for application of electrical and electronic products Transport 3 Terms
3.1 Household Refrigerator (hereinafter referred to as refrigerator) Household Refrigerating Appliances An insulated box with appropriate volume and device for household use, which uses electrical energy to cool and has one or more compartments, including refrigerators, refrigerator-freezers, and freezers. 3.2 Refrigerator-Freezer Refrigerator-Freezer A refrigerator has at least one compartment as a refrigerator, which is suitable for storing food that does not need to be frozen. And at least one compartment is a freezer, which is suitable for frozen food that needs to be kept at or below -18°C and for storing frozen food. 3.2.1 Single-controlled refrigerator-freezer A refrigerator-freezer with only one temperature control means for adjusting the temperature of the refrigerator compartment and the freezer compartment. Approved by the State Administration of Technical Supervision on August 29, 1995 1082
Implementation on August 1, 1996
GB/T 8059.2-1995
3.2.2 Multi-controlled refrigerator-freezer A refrigerator-freezer with multiple temperature control means for adjusting the temperature of each refrigerator compartment and freezer compartment separately. 3.3 Storage compartments3.3. 1 Fresh food storage compartment A compartment for storing food that does not need to be frozen. Its temperature should be kept above 0℃. This room can also be divided into some small compartments. 3.3.2 Cellar compartment A compartment for storing some special food or beverages. Its temperature is slightly higher than that of the refrigerator compartment. 3.3.3 Low temperature compartment This compartment can be one of the following:
Ice-making compartment,
b. Frozen food storage compartment.
3.3.4 Ice-making compartment A compartment specially used for freezing and storing ice cubes. 3.3.5 Frozen food storage compartment A compartment used for storing frozen food. According to its storage temperature, it can be divided into: a. "One-star" level room, the storage temperature measured according to the specified test conditions and methods is not higher than -6℃; b. "Two-star" room, the storage temperature measured according to the specified test conditions and methods is not higher than -12℃; "two-star" part, a part of "three-star" room, is not independent (i.e., there are local partitions, but no doors or covers for independent use). The storage temperature of this part measured according to the specified conditions and methods is not higher than -12℃; d. "Three-star" room, the storage temperature measured according to the specified test conditions and methods is not higher than -18℃. Note: In some cases, a "two-star" part is allowed in this room (see B7 in Appendix B (Supplement)). 3.3.6 Food freezer compartments A compartment that can freeze at least 4.5kg of test packages/100L effective volume (not less than 2kg for less than 45L) from 25℃ to -18℃ (for SN, N, ST refrigerators) or from 32℃ to -18℃ (for T refrigerators) within 24h. It is also suitable for storing frozen food under "three-star" storage conditions (not higher than -18℃). 3.3.7 Chill compartment A compartment used for storing perishable food. The temperature can be kept between -2 and +3°C and the volume can accommodate at least 2 "M\ bags.
3.4 General definitions3.4.1 Top-opening type A refrigerator where food is put in and put out through the top door or lid.3.4.2 Upright type A refrigerator where food is put in and put out through the front door.3.4.3 Overall dimensionsWhen the door or lid is closed, the dimensions (length × width × height) of a rectangular parallelepiped connected to the inside of the refrigerator with a horizontal bottom are used to express it. Accessories are included, but handles are not included. If there are other protrusions, they should be stated separately.3.4.4 Overall space required in use The total dimensions of the exterior dimensions plus the space required for free circulation of cooling air when the refrigerator is in use and the space required for the minimum opening angle of the door when all accessories enter and exit the box. Accessories include containers and shelves, as well as water trays that need to be taken out manually (see Figure 1). 1083
3.4.5 Volumes
3.4.5.1 Gross volume
GB/T 8059.2—1995
Width when the door or lid is open
Figure 1 Total space required in use
The volume enclosed by the inner wall when the refrigerator door (or lid) is closed. If forced air cooling is used, the volume of the space occupied by the air duct, evaporator, fan and other accessories should be subtracted from the gross volume.
3.4.5.2 Total gross volume volume is the sum of the gross volumes of the refrigerator compartment, cooling compartment, ice room, cryochamber, and freezer compartment (including the "two-star" grade part therein) (including compartments with or without independent doors).
3.4.5.3 Effective volume storage volume The volume remaining after deducting the volume occupied by each component and those spaces that are deemed not to be used for food storage from the gross volume of any compartment is the effective volume of the compartment.
3.4.5.4 Rated effective volume rated storage volume The effective volume marked by the manufacturer.
3.4.5.5 Total effective volume totel storage volume The sum of the effective volumes of the refrigerator compartment, cooling compartment, ice room, cryochamber, and freezer compartment (including the "two-star" grade part therein). 3.4.5.6 Rated total effective volume rated tatol storage volume The total effective volume marked by the manufacturer.
3.4.6 Shelf
Shelf (or shelf) is a component with certain mechanical strength on which food is placed. Shelves can be fixed or movable. 3.4.7 Load limit
The surface surrounding the effective volume of frozen food. 3.4.8 Load limit line The permanent mark indicating the effective volume limit of frozen food. 3.5 Definition relating to some performance characteristics1084
3.5.1 Energy consumptionenergy consumptionGB/T 8059.2—1995
The energy consumption of a refrigerator in steady operation for 24 hours. It is measured at an ambient temperature of 25℃ (SN, N, ST types) or 32℃ (T type) using the test method specified in 6.4.3. 3.5.2 Rated energy consumptionrated energy consumptionthe energy consumption marked by the manufacturer.
3.5.3 Storage temperaturesstorage temperatures3.5.3.1 Fresh food storage temperaturestmis the arithmetic mean of t1, t2 and t3. t1vtz and t: are the average internal temperatures measured at the specified measuring points (6.2) and in the copper cylinder (6.1.4.1), that is, the arithmetic mean of the highest and lowest temperatures at each point in a complete control cycle (3.5.10) (or the arithmetic mean of the temperatures when the machine is started and stopped). 3.5.3.2 Frozen food storage temperatures The highest temperature of the hottest "M" package (3.5.9 and 6.3) among the test packages placed in the frozen food storage room. 3.5.3.3 Cooling room temperature tem cellar compartment temperaturestem is the arithmetic mean of te,>le, and te. te,t, and t, are the average internal temperatures measured at the specified measuring points (6.2) and in the copper cylinder (6.1.4.1), that is, the arithmetic mean of the maximum and minimum temperatures at each point in a complete control cycle (3.5.10) (or the arithmetic mean of the temperatures when starting and stopping). 3.5.3.4 Chill compartment temperature temax vtemin chill compartment temperature The instantaneous maximum and minimum temperatures of any "M" in the "M" package placed in accordance with 6.2.1. 3.5.4 Freezing capacity The mass of the test package when the temperature of the test package drops from 25±1℃ or 32±1℃ to -18℃ within 24 hours under the test conditions specified in Article 6.4.6 (the temperature referred to is the arithmetic mean of the instantaneous temperature of all "M" packages). The freezing capacity is expressed in kg/24h. 3.5.4.1 Rated freezing capacity The freezing capacity marked by the manufacturer.
3.5.5 Ballast load
When conducting the freezing capacity test, each freezer compartment of the refrigerator (including the "two-star" grade part therein) is pre-loaded with a certain amount of test packages and M" packages that have reached the specified temperature.
3.5.6 Freezing load
When conducting the freezing capacity test, the simulated load used to measure the freezing capacity of the refrigerator. 3.5.7 The temperature rise of load time refers to the time difference between the moment when the hottest "M\ package" in the freezer (or box) or in any "three-star" room (or box) reaches -18°C and the moment when any "M" package (excluding the two-star part) first reaches -9°C under the specified test conditions when the refrigeration system is interrupted, that is, the load temperature recovery time.
3.5.8 Defrosting
Defrosting methods can be divided into the following three types.
3.5.8.1 Automatically defrosted There is no need to manually start the defrost device during defrosting, and there is no need to manually restore its normal operation and remove the defrost water after defrosting, that is, the whole defrosting process is completed automatically.
3.5.8.2 Semi-automatically defrosting Defrosted defrost requires manual activation of the defrost device, and the defrost is automatically restored to normal operation. The removal and treatment of defrost water can be manual or automatic.
Another type of semi-automatic defrost is that the defrost device does not need to be activated manually during defrosting, and it is not necessary to manually restore its normal operation after defrosting, but the removal of defrost water is manual. 3.5.8.3 Manually-defrosted1085
GB/T 8059.2-—1995
The defrost device needs to be manually activated during defrosting, and it is also necessary to manually restore its normal operation and remove defrost water after defrosting. However, there are also automatic removal and treatment of defrost water.
3.5.9 "M\ package"M" package
A test package with a temperature sensing element of 50mm×100mm×100mm installed at the geometric center according to 6.1.2. 3.5.10 Control cycles A refrigeration system controlled by a thermostat, in stable operation, is considered to be in a control cycle between two consecutive starts or two stops.
3.5.11 Stable operating conditions When the refrigeration system is in cyclic operation, including any automatic defrosting cycle, the stable operating condition is considered to be reached when the temperature values of each "M" package and copper cylinder at each corresponding point in the adjacent control cycle fluctuate within the range of ±0.5K, and the average temperature difference within a period of about 24h is not greater than ±1K.
When the refrigeration system is in continuous operation, although there is a certain temperature change, within 18h, the temperature rise and fall of all "M" packages and copper cylinders or brass cylinders does not exceed 0.5K, then the stable operating condition is considered to be reached. 3.5.12 Operating time percentage R percentage running time R Under the given ambient temperature and average temperature in the box, the operating time percentage is: × 100
Where: R - operating time percentage;
d - the time the refrigeration system is running (on) in a certain integer control cycle D - the total time of a certain integer control cycle. 1)
When the refrigerator-freezer has two independent refrigeration systems, there should be two operating time percentages, one of which is for the refrigerator compartment and the other is for the freezer compartment.
3.5.13 Cooling speed cooling speed
Under the specified test conditions, the ambient temperature is 32℃, the refrigerator is running continuously under no-load conditions, and the time required for the instantaneous temperature of each compartment to reach the specified in Table 1.
Storage temperature
Cold room
Climate type"
Ambient temperature
(Article 3.5.3.1)
tivt2vt3
0≤t10
Note: The lower limit temperature of the ice room may not be lower than -4℃. 1086
Freezer and
"Three-star room
(3.5.3.2)
≤-18
"Two-star room and
"Two-star" part
(3.5.3.2)
and Appendix B7
Cooling room
(3.5.3.3)
8≤tem14
Ice room
(3.5.5.4)
2≤.temin
teemax≤+3
GB/T8059.2—1995
3.5.14 Ice-making capacity capacityThe amount of ice that a refrigerator can produce within 24 hours, or the time required for the water in the ice box provided by the refrigerator to freeze into solid ice. 3.5.15 Ambient temperatureAmbient temperature is the temperature of the space surrounding the refrigerator during the test. It refers to the arithmetic mean of the average temperatures t and t measured at two measuring points 1 m above the ground and 350 mm from the vertical center line of the two side walls of the refrigerator. 3.6 Refrigerant
A fluid that transfers heat through phase change in a refrigeration system. It absorbs heat at low temperature and low pressure, and releases heat at high temperature and high pressure. 3.7 Definition relating to compression-type appliances3.7.1 Compression-type appliance The refrigeration process of a refrigerator is completed by evaporating a liquid refrigerant at low pressure in an evaporator, and the resulting vapor is mechanically compressed to become high-pressure vapor, which is then cooled in a condenser to return to liquid refrigerant. 3.7.2 Hermetically sealed motor-driven refrigerating compressor The compressor and motor (or at least its moving parts) are installed in an airtight shell sealed by welding or other methods, and generally cannot be disassembled after assembly. There are no moving parts outside the shell. 3.7.3 Hermetically sealed compressor refrigerating system This refrigeration system is mainly composed of a motor-driven compressor, a condenser, a pressure reducing element, an evaporator and all other components containing refrigerant, which are permanently connected by the manufacturer by welding or other methods. 3.7.4 Refrigerant compressor A mechanically moving component that absorbs refrigerant vapor from the evaporator and discharges it into the condenser at a higher pressure. 3.7.5 Expansion device An element that reduces the pressure of the refrigerant from the condensing pressure to the evaporation pressure. 3.7.6 Condenser
A heat exchanger in which the compressed vapor refrigerant is liquefied by transferring heat to the external cooling medium.
3.7.7 Evaporator
evaporaton
A heat exchanger in which the liquid refrigerant after decompression is evaporated by absorbing heat from the cooled medium. 3.7.8 Thermostat
A device that automatically adjusts the operation of the refrigeration system according to the temperature of the evaporator or compartment. 4 Product classification
4.1 Refrigerators can be divided into the following categories according to their use:
a. Refrigerator (represented by the Chinese Pinyin letter C), b. Refrigerator-freezer (represented by the Chinese Pinyin letter CD); C. Freezer (represented by the Chinese Pinyin letter D). 4.2 According to the climate environment in which the refrigerator and freezer are used, they are divided into: Type
Subtemperate type (SN)
Temperate type (N)
Subtropical type (ST)
Tropical type (T)
4.3 Model naming
The product models and their meanings are as follows:
Climate environment temperature
10～32℃
16～32℃
18~38℃
18~43℃
Example: BCD-185A
GB/T 8059.2—1995
Improved design serial number, expressed in Chinese phonetic alphabetical order Specification code (effective volume L expressed in Arabic numerals) Usage classification code (expressed as specified in a, b, c in 4.1) Product code (household refrigerator)
Indicates the first improved design of 185L household refrigerator-freezer. 5 Technical requirements
Refrigerator-freezers shall comply with the requirements of this standard and GB4706.13, and shall be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 5.1 Use environment
Refrigerator-freezers shall be usable under the following environmental conditions. 5.1.1 Ambient temperature
Subtemperate type (SN), temperate type (N): 10~32C; a.
b. Subtropical type (ST): 10~38℃,
c. Tropical type (T): 10~43℃. bzxZ.net
5.1.2 Ambient humidity
Relative humidity shall not exceed 90%.
5.1.3 Power supply
Voltage 187~242V,
Power frequency 50±1Hz.
5.2 Effective volume
Effective volume is expressed in L.
5.3 Total effective volume
The total effective volume of the refrigerator shall be calculated in accordance with the provisions of Appendix B (Supplement), and the calculated value shall not be less than 97% of the rated total effective volume. 5.4 Refrigeration performance
5.4.1 Storage temperature
When testing in accordance with Article 6.4.1, the temperature of each compartment of the refrigerator-freezer shall simultaneously comply with the provisions of Table 1. The temperature of the freezer compartment of a refrigerator-freezer and the frozen food storage room with a "three-star" rating (or the "three-star" indoor room with a "two-star" rating) shall comply with the star-level temperature specified in 3.3.5 and 3.3.6. 5.4.2 Ice-making capacity
a. When the ice-making capacity of a refrigerator is tested in accordance with 6.4.2, it shall be assessed according to the ice-making box provided by the manufacturer. The water in the ice box shall be completely frozen into solid ice within 2 hours.
b. If the manufacturer marks the ice-making capacity for 24 hours, the water in the ice box shall be completely frozen into solid ice within the conversion time specified in 6.4.2.2. 5.4.3 Power consumption
When the power consumption is measured in accordance with 6.4.3, the measured value shall not be greater than 115% of the rated value. 5.4.4 Defrosting performance
Only automatic or semi-automatic defrosting refrigerators shall be assessed. When tested in accordance with 6.4.4, the following requirements must be met: a. After defrosting, it should be able to automatically resume normal operation; b. After defrosting, no frost or ice that may affect normal operating performance should remain on the evaporator surface and in the drainage pipe. 1088
5.4.5 Load temperature recovery time
Load temperature recovery time is expressed in min.
GB/T 8059.2—1995
Refrigerator should have good thermal insulation performance, and the refrigerator should be designed to make its load temperature recovery speed slow enough (that is, when tested according to Article 6.4.5, the measured load temperature recovery time should not be less than 300min). If the manufacturer marks the rated value as not less than 350min, the actual measured value should not be less than 85% of the rated value.
5.4.6 Refrigeration capacity
When tested according to Article 6.4.6, the measured refrigeration capacity should not be less than 85% of the rated value. Nor should it be lower than the minimum limit of freezing capacity. The minimum limit of freezing capacity is 4.5kg/100L (freezer), and the capacity below 45L shall not be less than 2kg. 5.5 Structure and material properties
5.5.1 Insulation performance and anti-condensation
The refrigerator should have good insulation performance, and the insulation material should not have obvious shrinkage deformation, and it is not allowed to accumulate excessive water vapor on the outer surface of the refrigerator during normal operation.
When the refrigerator is subjected to the condensation test in accordance with Article 6.5.1, no bead-like or flowing condensation is allowed on the outer surface of the refrigerator. 5.5.2 Airtightness
When the door (or lid) is closed, there should be no pores in the wall of the refrigerator to allow air to enter the box. The door seal (or lid seal) should have good airtightness. After the door (or lid) is closed, the door seal (or lid seal) should be tight all around. When tested according to 6.5.2, the paper should not slide freely. 5.5.3 Durability of door hinges and handles
Door hinges and handles should be strong and corrosion-resistant. According to 6.5.3, the durability test should be carried out. After the outer door of the cold storage room (or cooling room) is opened and closed 100,000 times, there should be no damage and the airtightness should not be damaged. After the test is completed, it should be subjected to the airtightness test in 6.5.2 again. The result should meet the requirements of 5.5 .2 requirements. After the test, the fastening system can still make the door easy to open and close and maintain its good function. When the frozen food storage room (or freezer) of the refrigerator has a separate outer door, it should be free of damage and its airtightness should not be damaged after 10,000 opening and closing tests according to the durability test in 6.5.3. After the test, it should be subjected to the airtightness test in 6.5.2 again, and the result should meet the requirements of 5.5.2.
5.5.4 Shelves and containers
Shelves, containers and similar parts should have sufficient mechanical strength. After the mechanical strength test in 6.5.4, there should be no deformation that loses the original function, especially for sliding or rotating parts. It should also be able to move completely when loaded with a cylindrical load. Shelves, containers and similar parts designed to be removable should be easy to remove during use. 5.5.5 Refrigerator internal materials
Refrigerator internal materials and their accessories should not produce or transmit odor to food during normal use. When the odor test is carried out in accordance with 6.5.5, the evaluation value (average value) shall not be greater than 1.
Refrigerator internal materials and The stored food should not be contaminated when in contact with it, nor should toxic substances be transmitted to the food. The material should be resistant to moisture and food acids.
All surface coatings for use should be impact-resistant, have appropriate strength, uniform color, smooth, easy to clean and resistant to moisture and food acids. 5.5.6 Sealing performance of refrigeration system
The refrigeration system should be sealed. When leak detection is carried out in accordance with Article 6.5.6, the annual leakage of refrigerant in any part shall not exceed 0.5g. 5.5.7 Noise and vibration
5.5.7.1 When the refrigerator is in operation, it should not produce obvious noise. When measured according to 6.5.7.1, the sound power level of the noise of refrigerators below 250L (including 250L) should not be greater than 52dB (A); for refrigerators above 250L, it should not be greater than 55dB (A). 5.5.7.2 When the refrigerator is in operation, it should not produce obvious vibration. When measured according to 6.5.7.2, the effective value of the vibration velocity should not exceed 0.71 mm/s.
5.5.8 Electroplated parts
GB/T8059.2-1995
After the metal electroplated parts of the refrigerator are subjected to salt spray test according to 6.5.8, check the surface corrosion of the electroplating layer. The number of metal rust spots and rust marks on the plating layer should not exceed 2 per 100cm2, and the area of each rust spot and rust mark should not be greater than 1mm. When the surface area of the test piece is less than 100cm2, rust spots and rust marks are not allowed.
5.5.9 Surface coating
After the surface coating of the refrigerator is tested according to 6.5.9 and 6.5.10, the coating surface appearance should be good, no obvious pinholes are allowed, and no more than 2 bubbles with a diameter of 0.5 to 1 mm should be found in any 100 cm2 square area on the surface of the sample, and bubbles with a diameter greater than 1 mm are not allowed.
5.5.10 Appearance requirements
The appearance should not have obvious defects, and the decorative surface should be flat and bright. The coating surface should be flat and bright, with consistent color and uniform luster, and the coating should be firm. There should be no obvious flow scars, scratches, pits, wrinkles, bubbles, missing coating and aggregated sand.
The decorative layer of electroplated parts should be smooth and fine, with uniform color, and should not have defects such as spots, pinholes, bubbles and coating peeling. The surface of plastic parts should be flat and smooth, with uniform color, and should not have defects such as cracks, bubbles, obvious shrinkage holes and deformation. The nameplate and -~ markings should be complete, and the nameplate should meet the requirements when checked according to 8.1.1. 5.6 Requirements for refrigerator structure and design
Appropriate anti-condensation measures should be taken when designing the refrigerator. Facilities for collecting, discharging and treating defrosting water should be designed. Dust accumulation should be avoided and reduced as much as possible when designing the condenser. The evaporator should be designed to prevent damage during normal use and should be made of non-toxic and corrosion-resistant materials. The coating or plating used to protect the surface of the evaporator should be made of corrosion-resistant, non-toxic and temperature-resistant materials. When designing components that may be replaced, such as switches, bulbs, thermostats, etc., they should be installed in places that are easy to operate, replace and safe. When designing the refrigeration system, the materials should have sufficient strength and should not be degraded by the effects of refrigerants, lubricants or other mixtures.
Freezers and "three-star" frozen food storage rooms should be provided with load limit lines (see Figure 2), but they may not be provided in the following cases: any space within the gross volume of the compartment is suitable for storing food under "three-star" storage conditions; a
b. Its load limit is specified by special structural forms, such as baskets, baffles, etc.; c. Its load limit is determined by natural limits (see Figure A1). The load limit line should be marked clearly and not faded. It can be marked with one or more load limit lines. The size of the mark can be reduced in proportion, but it cannot be less than half of the specified size.
6 Test methods
General test conditions
6.1.1 Test room
8059.21995
This edge represents the load limit
Load limit line marking
The refrigerator is placed in this test room for testing according to the method of 6.1.1.4. The ambient temperature in the test room is adjustable within the range of 10~43℃. Dimensions are in millimeters.
Parameters such as ambient temperature, ambient humidity and ambient air flow rate in the test room are represented by the values measured at the specified measurement points (Article 3.5.15).
If multiple refrigerators are tested at the same time, their environmental parameters should be the arithmetic mean of the values measured at the specified points of each refrigerator. 6.1.1.1 Ambient temperature
Test storage temperature
10 and 32℃
16 and 32℃
18 and 38℃
18 and 43℃
Power consumption test, load temperature recovery test, refrigeration capacity test b.
SN type, N type, ST type
When performing other tests, the temperature specified in the test requirements shall be followed. .
When the stable operation state is required and during the test, the temperature at each specified measuring point (3.5.15) shall maintain the specified ambient temperature, and its fluctuation range shall be within ±0.5K. 1091
GB/T 8059.2—1995
Within the range of 2m above the test platform (6.1.1.1), the vertical temperature gradient shall not exceed 2K/m. 6.1.1.2 Ambient humidity
When there is no special provision for the relative humidity of the test room, it shall generally be 45% to 75%. 6.1.1.3 Ambient air velocity
The ambient air velocity in the test room shall not be greater than 0.25m/s. 6.1.1.4 Placement of refrigerators
Each refrigerator shall be placed on a solid wooden test platform painted black matte. The platform is spread out to allow free air circulation. The top of the platform should be 300mm higher than the test room floor. The platform extends outward, at least 300mm but not more than 600Inm beyond the two side walls and the front wall of the refrigerator. The rear of the platform should extend to the vertical partition at the back of the refrigerator. The air circulation around the refrigerator should be restricted by three vertical partitions painted dark black and matte around the refrigerator. The rear partition is parallel to the back of the refrigerator and close to the limiter at the back of the refrigerator, or maintains a certain distance from the back of the refrigerator as specified by the manufacturer. The left and right partitions are parallel to the two side walls of the refrigerator and 300mm apart. The width of the partition is 300mm (see Figure 3). 0
Unit: m
Figure 3 Partitions restricting air circulation (plan view) The three vertical partitions should be continuous and uninterrupted and fixed to the test platform. The height of the partition should be at least 300mm higher than the top of the refrigerator. The refrigerator should be placed to prevent direct radiation from cold and heat sources in the test room. The refrigerator should be away from other objects in the test room to eliminate the influence of objects with different temperatures from the environment. The placement of built-in refrigerators should be carried out according to the manufacturer's instructions. When a built-in refrigerator is combined with other appliances (non-refrigeration appliances), the test should be carried out in the combined state, but the other appliances in the combination are not in operation.
6.1.2 Test package
When a refrigerator with a load is to be used for various performance tests, a test package with a rectangular parallelepiped shape should be used. 6.1.2.1 Test package dimensions and their allowable deviations The dimensions of the test package before freezing and the mass of the contents are shown in Table 2. Table 2 Size and mass of test package
Dimension specifications, mm
25×50×100
50×100×100
50X100X200
Allowable deviation of length dimension: when the size is 25mm and 50mm, the allowable deviation is ±1.5mm; when the size is 100mm and 1092
GB/T8059.2—1995
200mm, the allowable deviation is 3.0mm; the allowable deviation of mass is ±2%. 6.1.2.2 Composition of the test package
The test package consists of the following ingredients:
Each 1000g of filler contains:
Hydroxyethyl methylcellulose
Sodium chloride
P-chloro-meta-cresol
The freezing point of this filler is -1°C and its thermal properties are equivalent to lean beef. 230g
b. The packaging material is a layer of plastic film or an appropriate material with negligible water vapor exchange with the ambient medium. After the filler is loaded, the packaging material is immediately sealed. Note:There shall be no more than 2 bubbles with a diameter of 5 to 1 mm, and bubbles with a diameter greater than 1 mm are not allowed.
5.5.10 Appearance requirements
The appearance shall not have obvious defects, and the decorative surface shall be flat and bright. The coating surface shall be flat and bright, with consistent color, uniform color, and firm coating. There shall be no obvious flow scars, scratches, pits, wrinkles, bubbles, missing coating, and aggregated sand.
The decorative layer of electroplated parts shall be smooth and fine, with uniform color, and shall not have defects such as spots, pinholes, bubbles, and coating peeling. The surface of plastic parts shall be flat and smooth, with uniform color, and shall not have defects such as cracks, bubbles, obvious shrinkage holes and deformation. The nameplate and cutting marks shall be complete, and the nameplate shall meet the requirements after inspection in accordance with 8.1.1. 5.6 Requirements for refrigerator structure and design
Appropriate anti-condensation measures shall be taken when designing refrigerators. Facilities for collecting, removing and treating defrosting water shall be designed. Condensers should be designed to avoid and reduce dust accumulation as much as possible. Evaporators should be designed to prevent damage during normal use and should be made of non-toxic and corrosion-resistant materials. The coating or plating used to protect the surface of the evaporator should be made of corrosion-resistant, non-toxic and temperature-resistant materials. Replaceable components, such as switches, bulbs, thermostats, etc., should be designed to be installed in places that are easy to operate, replace and safe. When designing the refrigeration system, its materials should have sufficient strength and should not be degraded by the effects of refrigerants, lubricants or other mixtures.
Freezers and "three-star" frozen food storage rooms should have load limit lines (see Figure 2), but they may not be set in the following cases: any space within the gross volume of the room is suitable for storing food under "three-star" storage conditions; a
b. Its load limit is specified by special structural forms, such as baskets, baffles, etc.; c. Its load limit is determined by natural limits (see Figure A1). The mark of the load limit line should be obvious and non-fading. It can be marked with one or more load limit lines. The size of the mark can be reduced in proportion, but it cannot be less than half of the specified size.
6 Test method
General test conditions
6.1.1 Test room
8059.21995
This edge represents the load limit
Load limit line mark
The refrigerator is placed in this test room for testing according to the method of Article 6.1.1.4. The ambient temperature in the test room is adjustable within the range of 10~43℃. The dimensions are in millimeters
Parameters such as ambient temperature, ambient humidity and ambient air flow velocity in the test room are represented by the values measured at the specified measurement point (Article 3.5.15).
If multiple refrigerators are tested at the same time, their environmental parameters should be the arithmetic mean of the values measured at the specified points of each refrigerator. 6.1.1.1 Ambient temperature
Test storage temperature
10 and 32℃
16 and 32℃
18 and 38℃
18 and 43℃
Power consumption test, load temperature recovery test, refrigeration capacity test b.
SN type, N type, ST type
When other tests are performed, they shall be carried out at the temperature specified in the test requirements. .
When the stable operating state is required and during the test, the temperature at each specified measuring point (3.5.15) shall maintain the specified ambient temperature, and its fluctuation range shall be within ±0.5K. 1091
GB/T 8059.2—1995
Within a range of 2m above the test platform (6.1.1.1), the vertical temperature gradient shall not exceed 2K/m. 6.1.1.2 Ambient humidity
The relative humidity of the test room should generally be 45% to 75% when there is no special regulation. 6.1.1.3 Ambient air velocity
The ambient air velocity of the test room should not be greater than 0.25m/s. 6.1.1.4 Placement of refrigerators
Each refrigerator should be placed on a solid wooden test platform painted black and matte. The platform should be spread out to allow air to circulate freely. The top of the platform should be 300mm higher than the floor of the test room. The platform extends outward, extending at least 300mm but not more than 600Inm beyond the two side walls and the front wall of the refrigerator. The back of the platform should extend to the vertical partition at the back of the refrigerator. The air circulation around the refrigerator should be limited by three vertical partitions painted dark black and matte around the refrigerator. The rear partition is parallel to the back of the refrigerator and close to the limiter at the back of the refrigerator, or maintains a certain distance from the back of the refrigerator as specified by the manufacturer. The left and right partitions are parallel to the two side walls of the refrigerator and are 300mm apart. The width of the partition is 300mm (see Figure 3). 0
Unit: m
Figure 3 Partitions restricting air circulation (plan view) The three vertical partitions should be continuous and uninterrupted and fixed on the test platform. The height of the partition should be at least 300mm higher than the top of the refrigerator. The placement of the refrigerator should prevent direct radiation from the cold and heat sources in the test room. The refrigerator should be away from other objects in the test room to eliminate the influence of objects with different temperatures from the ambient temperature. The placement of built-in refrigerators should be carried out according to the manufacturer's instructions. When a built-in refrigerator is combined with other appliances (non-refrigeration appliances), the test should be carried out in the combined state, but the other appliances in the combination should not be operated.
6.1.2 Test package
When a refrigerator with a load is to be used for various performance tests, a test package with a rectangular parallelepiped shape should be used. 6.1.2.1 Test package dimensions and their allowable deviations The dimensions of the test package before freezing and the mass of the contents are shown in Table 2. Table 2 Test package dimensions and mass Dimensions, mm 25×50×100 50×100×100 50×100×200 Allowable deviation of length: When the dimensions are 25 mm and 50 mm, the allowable deviation is ±1.5 mm; when the dimensions are 100 mm and 200 mm, the allowable deviation is 3.0 mm; the allowable deviation of mass is ±2%. 6.1.2.2 Composition of the test package
The test package consists of the following ingredients:
Each 1000g of filler contains:
Hydroxyethyl methylcellulose
Sodium chloride
P-chloro-meta-cresol
The freezing point of this filler is -1°C and its thermal properties are equivalent to lean beef. 230g
b. The packaging material is a layer of plastic film or an appropriate material with negligible water vapor exchange with the ambient medium. After the filler is loaded, the packaging material is immediately sealed. Note:There shall be no more than 2 bubbles with a diameter of 5 to 1 mm, and bubbles with a diameter greater than 1 mm are not allowed.
5.5.10 Appearance requirements
The appearance shall not have obvious defects, and the decorative surface shall be flat and bright. The coating surface shall be flat and bright, with consistent color, uniform color, and firm coating. There shall be no obvious flow scars, scratches, pits, wrinkles, bubbles, missing coating, and aggregated sand.
The decorative layer of electroplated parts shall be smooth and fine, with uniform color, and shall not have defects such as spots, pinholes, bubbles, and coating peeling. The surface of plastic parts shall be flat and smooth, with uniform color, and shall not have defects such as cracks, bubbles, obvious shrinkage holes and deformation. The nameplate and cutting marks shall be complete, and the nameplate shall meet the requirements after inspection in accordance with 8.1.1. 5.6 Requirements for refrigerator structure and design
Appropriate anti-condensation measures shall be taken when designing refrigerators. Facilities for collecting, removing and treating defrosting water shall be designed. Condensers should be designed to avoid and reduce dust accumulation as much as possible. Evaporators should be designed to prevent damage during normal use and should be made of non-toxic and corrosion-resistant materials. The coating or plating used to protect the surface of the evaporator should be made of corrosion-resistant, non-toxic and temperature-resistant materials. Replaceable components, such as switches, bulbs, thermostats, etc., should be designed to be installed in places that are easy to operate, replace and safe. When designing the refrigeration system, its materials should have sufficient strength and should not be degraded by the effects of refrigerants, lubricants or other mixtures.
Freezers and "three-star" frozen food storage rooms should have load limit lines (see Figure 2), but they may not be set in the following cases: any space within the gross volume of the room is suitable for storing food under "three-star" storage conditions; a
b. Its load limit is specified by special structural forms, such as baskets, baffles, etc.; c. Its load limit is determined by natural limits (see Figure A1). The mark of the load limit line should be obvious and non-fading. It can be marked with one or more load limit lines. The size of the mark can be reduced in proportion, but it cannot be less than half of the specified size.
6 Test method
General test conditions
6.1.1 Test room
8059.21995
This edge represents the load limit
Load limit line mark
The refrigerator is placed in this test room for testing according to the method of Article 6.1.1.4. The ambient temperature in the test room is adjustable within the range of 10~43℃. The dimensions are in millimeters
Parameters such as ambient temperature, ambient humidity and ambient air flow velocity in the test room are represented by the values measured at the specified measurement point (Article 3.5.15).
If multiple refrigerators are tested at the same time, their environmental parameters should be the arithmetic mean of the values measured at the specified points of each refrigerator. 6.1.1.1 Ambient temperature
Test storage temperature
10 and 32℃
16 and 32℃
18 and 38℃
18 and 43℃
Power consumption test, load temperature recovery test, refrigeration capacity test b.
SN type, N type, ST type
When other tests are performed, they shall be carried out at the temperature specified in the test requirements. .
When the stable operating state is required and during the test, the temperature at each specified measuring point (3.5.15) shall maintain the specified ambient temperature, and its fluctuation range shall be within ±0.5K. 1091
GB/T 8059.2—1995
Within a range of 2m above the test platform (6.1.1.1), the vertical temperature gradient shall not exceed 2K/m. 6.1.1.2 Ambient humidity
The relative humidity of the test room should generally be 45% to 75% when there is no special regulation. 6.1.1.3 Ambient air velocity
The ambient air velocity of the test room should not be greater than 0.25m/s. 6.1.1.4 Placement of refrigerators
Each refrigerator should be placed on a solid wooden test platform painted black and matte. The platform should be spread out to allow air to circulate freely. The top of the platform should be 300mm higher than the floor of the test room. The platform extends outward, extending at least 300mm but not more than 600Inm beyond the two side walls and the front wall of the refrigerator. The back of the platform should extend to the vertical partition at the back of the refrigerator. The air circulation around the refrigerator should be limited by three vertical partitions painted dark black and matte around the refrigerator. The rear partition is parallel to the back of the refrigerator and close to the limiter at the back of the refrigerator, or maintains a certain distance from the back of the refrigerator as specified by the manufacturer. The left and right partitions are parallel to the two side walls of the refrigerator and are 300mm apart. The width of the partition is 300mm (see Figure 3). 0
Unit: m
Figure 3 Partitions restricting air circulation (plan view) The three vertical partitions should be continuous and uninterrupted and fixed on the test platform. The height of the partition should be at least 300mm higher than the top of the refrigerator. The placement of the refrigerator should prevent direct radiation from the cold and heat sources in the test room. The refrigerator should be away from other objects in the test room to eliminate the influence of objects with different temperatures from the ambient temperature. The placement of built-in refrigerators should be carried out according to the manufacturer's instructions. When a built-in refrigerator is combined with other appliances (non-refrigeration appliances), the test should be carried out in the combined state, but the other appliances in the combination should not be operated.
6.1.2 Test package
When a refrigerator with a load is to be used for various performance tests, a test package with a rectangular parallelepiped shape should be used. 6.1.2.1 Test package dimensions and their allowable deviations The dimensions of the test package before freezing and the mass of the contents are shown in Table 2. Table 2 Test package dimensions and mass Dimensions, mm 25×50×100 50×100×100 50×100×200 Allowable deviation of length: When the dimensions are 25 mm and 50 mm, the allowable deviation is ±1.5 mm; when the dimensions are 100 mm and 200 mm, the allowable deviation is 3.0 mm; the allowable deviation of mass is ±2%. 6.1.2.2 Composition of the test package
The test package consists of the following ingredients:
Each 1000g of filler contains:
Hydroxyethyl methylcellulose
Sodium chloride
P-chloro-meta-cresol
The freezing point of this filler is -1°C and its thermal properties are equivalent to lean beef. 230g
b. The packaging material is a layer of plastic film or an appropriate material with negligible water vapor exchange with the ambient medium. After the filler is loaded, the packaging material is immediately sealed. Note:4 methods are placed in this test room for testing. The ambient temperature in the test room is adjustable within the range of 10~43℃. Dimensions are in millimeters
Parameters such as ambient temperature, ambient humidity and ambient air flow rate in the test room are represented by the values measured at the specified measurement points (3.5.15).
If multiple refrigerators are tested at the same time, their environmental parameters should be the arithmetic mean of the values measured at the specified points of each refrigerator. 6.1.1.1 Ambient temperature
Test storage temperature
10 and 32℃
16 and 32℃
18 and 38℃
18 and 43℃
Power consumption test, load temperature recovery test, refrigeration capacity test b.
SN type, N type, ST type
When doing other tests, carry out them according to the temperature specified in the test requirements. .
When the stable operation state is required and during the test, the temperature at each specified measuring point (3.5.15) shall maintain the specified ambient temperature, and its fluctuation range shall be within ±0.5K. 1091
GB/T 8059.2—1995
Within the range of 2m above the test platform (6.1.1.1), the vertical temperature gradient shall not exceed 2K/m. 6.1.1.2 Ambient humidity
When there is no special provision for the relative humidity of the test room, it shall generally be 45% to 75%. 6.1.1.3 Ambient air velocity
The ambient air velocity in the test room shall not be greater than 0.25m/s. 6.1.1.4 Placement of refrigerators
Each refrigerator shall be placed on a solid wooden test platform painted black matte. The platform is spread out to allow free air circulation. The top of the platform should be 300mm higher than the test room floor. The platform extends outward, at least 300mm but not more than 600Inm beyond the two side walls and the front wall of the refrigerator. The rear of the platform should extend to the vertical partition at the back of the refrigerator. The air circulation around the refrigerator should be restricted by three vertical partitions painted dark black and matte around the refrigerator. The rear partition is parallel to the back of the refrigerator and close to the limiter at the back of the refrigerator, or maintains a certain distance from the back of the refrigerator as specified by the manufacturer. The left and right partitions are parallel to the two side walls of the refrigerator and 300mm apart. The width of the partition is 300mm (see Figure 3). 0
Unit: m
Figure 3 Partitions restricting air circulation (plan view) The three vertical partitions should be continuous and uninterrupted and fixed to the test platform. The height of the partition should be at least 300mm higher than the top of the refrigerator. The refrigerator should be placed to prevent direct radiation from cold and heat sources in the test room. The refrigerator should be away from other objects in the test room to eliminate the influence of objects with different temperatures from the environment. The placement of built-in refrigerators should be carried out according to the manufacturer's instructions. When a built-in refrigerator is combined with other appliances (non-refrigeration appliances), the test should be carried out in the combined state, but the other appliances in the combination are not in operation.
6.1.2 Test package
When a refrigerator with a load is to be used for various performance tests, a test package with a rectangular parallelepiped shape should be used. 6.1.2.1 Test package dimensions and their allowable deviations The dimensions of the test package before freezing and the mass of the contents are shown in Table 2. Table 2 Size and mass of test package
Dimension specifications, mm
25×50×100
50×100×100
50X100X200
Allowable deviation of length dimension: when the size is 25mm and 50mm, the allowable deviation is ±1.5mm; when the size is 100mm and 1092
GB/T8059.2—1995
200mm, the allowable deviation is 3.0mm; the allowable deviation of mass is ±2%. 6.1.2.2 Composition of the test package
The test package consists of the following ingredients:
Each 1000g of filler contains:
Hydroxyethyl methylcellulose
Sodium chloride
P-chloro-meta-cresol
The freezing point of this filler is -1°C and its thermal properties are equivalent to lean beef. 230g
b. The packaging material is a layer of plastic film or an appropriate material with negligible water vapor exchange with the ambient medium. After the filler is loaded, the packaging material is immediately sealed. Note:4 methods are placed in this test room for testing. The ambient temperature in the test room is adjustable within the range of 10~43℃. Dimensions are in millimeters
Parameters such as ambient temperature, ambient humidity and ambient air flow rate in the test room are represented by the values measured at the specified measurement points (3.5.15).
If multiple refrigerators are tested at the same time, their environmental parameters should be the arithmetic mean of the values measured at the specified points of each refrigerator. 6.1.1.1 Ambient temperature
Test storage temperature
10 and 32℃
16 and 32℃
18 and 38℃
18 and 43℃
Power consumption test, load temperature recovery test, refrigeration capacity test b.
SN type, N type, ST type
When doing other tests, carry out them according to the temperature specified in the test requirements. .
When the stable operation state is required and during the test, the temperature at each specified measuring point (3.5.15) shall maintain the specified ambient temperature, and its fluctuation range shall be within ±0.5K. 1091
GB/T 8059.2—1995
Within the range of 2m above the test platform (6.1.1.1), the vertical temperature gradient shall not exceed 2K/m. 6.1.1.2 Ambient humidity
When there is no special provision for the relative humidity of the test room, it shall generally be 45% to 75%. 6.1.1.3 Ambient air velocity
The ambient air velocity in the test room shall not be greater than 0.25m/s. 6.1.1.4 Placement of refrigerators
Each refrigerator shall be placed on a solid wooden test platform painted black matte. The platform is spread out to allow free air circulation. The top of the platform should be 300mm higher than the test room floor. The platform extends outward, at least 300mm but not more than 600Inm beyond the two side walls and the front wall of the refrigerator. The rear of the platform should extend to the vertical partition at the back of the refrigerator. The air circulation around the refrigerator should be restricted by three vertical partitions painted dark black and matte around the refrigerator. The rear partition is parallel to the back of the refrigerator and close to the limiter at the back of the refrigerator, or maintains a certain distance from the back of the refrigerator as specified by the manufacturer. The left and right partitions are parallel to the two side walls of the refrigerator and 300mm apart. The width of the partition is 300mm (see Figure 3). 0
Unit: m
Figure 3 Partitions restricting air circulation (plan view) The three vertical partitions should be continuous and uninterrupted and fixed to the test platform. The height of the partition should be at least 300mm higher than the top of the refrigerator. The refrigerator should be placed to prevent direct radiation from cold and heat sources in the test room. The refrigerator should be away from other objects in the test room to eliminate the influence of objects with different temperatures from the environment. The placement of built-in refrigerators should be carried out according to the manufacturer's instructions. When a built-in refrigerator is combined with other appliances (non-refrigeration appliances), the test should be carried out in the combined state, but the other appliances in the combination are not in operation.
6.1.2 Test package
When a refrigerator with a load is to be used for various performance tests, a test package with a rectangular parallelepiped shape should be used. 6.1.2.1 Test package dimensions and their allowable deviations The dimensions of the test package before freezing and the mass of the contents are shown in Table 2. Table 2 Size and mass of test package
Dimension specifications, mm
25×50×100
50×100×100
50X100X200
Allowable deviation of length dimension: when the size is 25mm and 50mm, the allowable deviation is ±1.5mm; when the size is 100mm and 1092
GB/T8059.2—1995
200mm, the allowable deviation is 3.0mm; the allowable deviation of mass is ±2%. 6.1.2.2 Composition of the test package
The test package consists of the following ingredients:
Each 1000g of filler contains:
Hydroxyethyl methylcellulose
Sodium chloride
P-chloro-meta-cresol
The freezing point of this filler is -1°C and its thermal properties are equivalent to lean beef. 230g
b. The packaging material is a layer of plastic film or an appropriate material with negligible water vapor exchange with the ambient medium. After the filler is loaded, the packaging material is immediately sealed. Note:
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