Some standard content:
Classification No. Y81
Registration No. 9498-2001
Light Industry Standard of the People's Republic of China
QB/T 2531—2001
Kitchen Furniture
Published on 2001-11-15
China Light Industry Federation
Implemented on 2002-05-01
QB/T2531—2001
Due to the special environment of kitchen, the physical, chemical and mechanical properties of kitchen furniture are higher than those of ordinary furniture. At the same time, it should meet certain health and safety requirements, and also involve installation requirements. This standard is formulated according to the use environment and use characteristics of kitchen furniture: The main basis for the formulation of this standard is: GB/T3324-1995 "General Technical Conditions for Wood Furniture" and QB/T1954.1-1994 "Quality Inspection and Quality Evaluation of Wood Furniture". Appendix A of this standard is the appendix of the standard.
This standard is proposed by the General Business Department of China Light Industry Federation. This standard is under the jurisdiction of the National Furniture Standardization Center. The drafting units of this standard are: National Furniture Quality Supervision and Inspection Center, Xi'an Xinxing Furniture Co., Ltd., Guangzhou Teli Industrial Co., Ltd., Chengdu Beite Industrial Co., Ltd. The main drafter of this standard is Gu Ming.
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1 Scope
Light Industry Standard of the People's Republic of China
Kitchen Furniture
QB/T2531--2001
This standard specifies the product classification, terms, definitions, symbols, technical requirements, test methods, inspection rules and signs, packaging, transportation and storage of kitchen furniture. This standard is applicable to kitchen furniture mainly made of artificial boards of this material, and products made of other materials can be used as a reference. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard was published, the versions shown were all valid. All standards will be revised. All parties using this standard should explore the possibility of using the following standards to set new versions.
GB/T1931-1991 Determination of moisture content of wood GB/T2406--1993 Test method for burning performance of plastics Oxygen index method GB/T3324-1995 General technical conditions for wooden furniture GB/T4893.1-1985 Determination of liquid resistance of furniture surface paint film GB/T4893.3-1985 Determination of dry heat resistance of furniture surface paint film GB/T4893.9-1992 Determination of impact resistance of furniture surface paint film GB/T10357.1~1989 Furniture mechanical properties test Table strength and durability GB/T10357.4-1989 Furniture mechanical properties test Cabinet stability GB/T10357.5-1989 Furniture mechanical properties test Test cabinet strength and durability GB/T17657-1999 Test methods for physical and chemical properties of artificial boards and veneer artificial boards GB18584-2001 Indoor decoration and renovation materials Limits of harmful substances in wooden furniture QB/T3826-1999 Test methods for corrosion resistance of metal coatings and chemical treatment layers of light industrial products Neutral salt spray test (NSS) method QB/T38271999 Test methods for corrosion resistance of metal coatings and chemical treatment layers of light industrial products Acetic acid salt spray test (ASS) method QB/T3832-1999 Evaluation of corrosion test results of metal coatings of light industrial products 3 Product classification Kitchen furniture should be classified into the following categories. 3.1 According to the countertop, it can be divided into: a) Split type: The countertop is divided into several independent areas according to different functions: b) Integral type: Countertops with different functions are connected as a whole. Approved by China National Light Industry Council on November 15, 2001 and implemented on May 1, 2002
3.2 According to the layout of the base cabinets, they are divided into:
QB/T 2531--2001
a) Linear type: All base cabinets are arranged in a line shapeb) L-type: Base cabinets are arranged on two adjacent walls of the kitchen:c) U-type: Base cabinets are arranged along three walls of the room:d) Island type: Independent base cabinets stacked in the middle of the room.4 Terms, definitions and symbols
This standard adopts the following terms, definitions and symbols. 4,1 Kitchen furniture refers to a series of kitchen cabinets and special accessories used in the kitchen for meal preparation, storage and storage.
Cabinets include base cabinets, wall cabinets, corner cabinets and other independent kitchen cabinets, high cabinets, half-high cabinets, etc. Special accessories in kitchen cabinets include functional hardware such as turntables and pull-out baskets. 4.2 Base cabinets Base cabinets A group of cabinets in kitchen furniture that are necessary for storage, washing, food preparation, cooking and other meal preparation processes. It includes a washing table, a cutting table, a stove, etc.
4.3 Worktops A general term for the horizontal panels of base cabinets.
4.4 Covered countertops
Countertops made of veneer materials pasted on a substrate. 4.5 Wall cabinets
Freestanding cabinets installed in the upper space of the kitchen.
4.6 Freestanding kitchen cabinets A single kitchen cabinet that is not connected to the countertop, including high cabinets and half-high cabinets. 4.7 Corner cabinets
Corner cabinets designed according to the corners of the kitchen. 4.8 Closing panels
Decorative connecting baffles between display cabinets and kitchen corners, as well as kitchen cabinets. 4.9 Installation position difference
The distance between adjacent surfaces of the door panels after the kitchen cabinet is installed. 4. 10 Opening for appliance The opening in the kitchen cabinet for installing built-in appliances. 4.11 Hardware connectors
The hardware connectors that connect the wall cabinet to the wall. 4.12 Front panel
The panel on the front of the kitchen cabinet, including door panels, drawer panels, basket panels, end panels, etc. 4.13 The symbols and descriptions of the main dimensions are shown in Figure 1 and Table 1. 2
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Height of base cabinet
Depth of base cabinet
The maximum extension of the countertop
Depth of cabinet
The height of the base recess
The depth of the base recess
The height of the rear splash board
5 Technical requirements
QB/T 2531—2001
Table 1 Symbols and explanations for main dimensions
Vertical distance from ground to tabletop
Horizontal distance between the front edge of tabletop and its rear edgeHorizontal distance between the front edge of tabletop and the corresponding cabinet door panelHorizontal distance between front and rear ends of hanging cabinet
Vertical clearance from ground to upper surface of cabinet baseHorizontal distance between front face of hanging cabinet seat and vertical line of front edge of door panelVertical distance from top of water retaining plate to tabletop
Figure 1 Schematic diagram of main dimensions
Technical requirements shall comply with the provisions of Table 2. Those with grading indicators shall meet the requirements of Class C at least. 5.1
Table 2 Technical requirements
Inspection items
Main dimensions 1D)
Height of base cabinet H
Depth of base cabinet Ta
Extended plate of countertop T
Depth of wall cabinet T
Technical requirements
Height of base recess H.
Depth of base recess T,
Height of rear water barrier h.
1700~900
10~-30
Note, 1. For bedroom furniture with special requirements, the size requirements shall be agreed upon by both parties and clearly stated in writing. Symbol
Item classification
Basic classification General
Inspection items
Dimensional deviation
Kitchen cabinet shape and position tolerance
Material requirements
Limit of harmful substances
QB/T 2531—2001
Package 2 (Continued 1)
Technical requirements
Unit product, that is, a group of base cabinets, the height, width and depth of a single cabinet in the room are all
Independent separation, width and depth deviation are all
Embedded equipment countertop slot 2
Exposed built-in equipment kitchen cabinet opening 2.3
Countertop, front panel
Warp
Front panel
Diagonal length ≥1400
700≤Diagonal length <1400
Diagonal length <700
Diagonal length
Opposite length
Diagonal length ≥1000
Diagonal length <1000
Opposite length ≥1000
Opposite length <1000
Countertop, regular panel flatness
Door and frame roller, door and door adjacent Distance difference between surfaces (not design requirement
Position difference
Distance deviation between drawer and frame, drawer and door, drawer leg and drawer adjacent surface (not design requirement), pull-out basket and drawer
Embedded
Covered
Stability of bottom foot
Drawer bottom edge
Drawer swing
All joints of front panel
All joints of front panel
The tree species or type of artificial board should be consistent with the label. Wood that is still being attacked by insects and rotten wood should not be used±2
0, +52
0,+102
Should not use wood with through-grain and dead knot diameter>4mm. The surface of the wood and the wood used for storage should not have resin capsules. Other minor wood
Material defects
1) Worm holes;2) Dead knot
(diameter ≤4mm)
3) Crack, 4) Blunt correction
Wood moisture content
Formaldehyde release plate
Heavy metal content
(limited color)
Soluble lead
Soluble cadmium
Soluble chromium
Degradable mercury
C level 2 items
8%~13%
Project classification
Basic classification General
Note, 2. The size deviation of the opening of the countertop of the embedded equipment and the size deviation of the cabinet for placing the built-in equipment are only allowed to be positive. 3. The size of the kitchen cabinet opening for placing the built-in equipment should meet the installation requirements of the equipment. Use.
4. Other minor quality defects, such as cracks, blunt edges, wormholes, etc., should be repaired and processed. If they do not affect the structural strength of the product, they can be repaired. 5. If there are contractual requirements, they shall be handled in accordance with the contractual requirements. TTKAONTKACa
Inspection items
Countertop flame retardancy requirements
(Contractual requirements)
Drainage duct in base cabinet
Physical and chemical properties
Countertop
Physical and chemical properties requirements
Other parts of kitchen cabinets
Physical and chemical properties requirements
Physical and chemical properties of metal parts
Appearance requirements of metal parts
Woodworking and finishing requirements
Countertop
OB/T 2531—2001
Table 2 (Continued 2)
Technical requirements
Oxygen index of countertop materials
Homogeneous materials (referring to artificial stone, etc.) Oxygen index of homogeneous materials for countertops 235
After the cold and hot temperature test, the drainage pipe in the base cabinet should have no wrinkles, no clear water, and no leakage
See Table 3
See Table 4
See Table s
Metal parts
Fur coating
(exposed parts)
Metal parts
Fur coating
(exposed parts)
Metal parts
Appearance defects
1)Discoloration;2)Bottom exposure;
3)Obvious sagging;
4)Bumps;5)Wrinkles;
6)Spray leakage:7)Blistering:
8)Mottle
1Scorch:2)Blistering;
3)Pinhole;4)Cracks
5)Mottle;6)Scratches,
1)Overlap;2)Misalignment:
3)Scarring;4) Miscellaneous residues;
5) Porosity, 6) Undercut
There should be no rust on the surface of metal parts
The product should have no broken parts
The non-intersection surface of the artificial board parts should be finished or edge-sealed. 0 items
There should be no bubbling or cracking in the rain-proofing, edge-sealing, and post-forming edge-sealing. There should be no degumming or corner plugging. The combination of parts should be firm and there should be no broken trousers rails and bending strips. The structure of supporting parts should be firm. Various opening and closing parts, including doors, drawers, pull-out baskets, and rotating baskets The shoulder closure of spare parts should be flexible. Various accessories and connectors should be installed without missing parts, nails or nails. The front edge of the base cabinet should be properly flashed to prevent water from leaking onto the panel. The back end of the countertop should be equipped with a rear water baffle. The edge of the artificial stone bottle mouth should be polished. 1) Veneer or edge sealing, post-forming edge wrapping. (1) Uneven and loose: (2) Glue seepage and glue marks on the surface: (3) Cracks and indentations; 2) There are marks, scratches or sand on the surface of the processing
3) The chamfer, fillet and feel lines on the surface are not smooth and even
4) The matching of the mounting parts is loose
5) The trimming and chamfering of the front edge of the base cabinet are not straight and smooth:
6) The connection between the water board and the countertop is not firm and tight.
Note; 6. This requirement is only valid for the express provisions of the contract, and it is sufficient
C level 2 items
7. Finishing includes painting, simulated decoration (decorative board, steel plate, plastic film veneer, etc.) methods. Project classification
Basic classification
Inspection items
Woodworking and finishing requirements
Medium strength and durability
Base cabinet body
Strength and durability
Independent cabinet
Strength and durability
Ultimate strength of wall cabinet
Stability of independent cabinet
Structural safety requirements
Product mark
QB/T 2531--2001
Table 2 (Continued 3)
Technical requirements
The veneer surface should not have discoloration or fading
The veneer surface should not have pitting, pitting, cracks or scratches. The coating should not be wrinkled, sticky or have paint leakage. 1) The coating should not be clean;
2) The coating should be smooth and clear:
See Table 6
See Table?
See the table
Loading load
3) There are obvious wood holes after the paint film is completely dry
sinking t
4) The coating has obvious particles and bulging edges;
5) The coating has obvious processing marks,
scratches, fog, white edges, white spots,
bubbles, oil white, sagging, shrinkage holes
hair, accumulated powder and debris:
The first shelf
The second shelf
The third and the shelves after the release
The specimen has no collar trend
Safety distance
Movable table binding
Grade A 0 item
After the overload loading test
, there is no damage to the shelves and supports
≥25mm||t t||≥100mm
Under normal use, the drawer or pull-out basket should not tilt. When the rolling door is sliding straight, it should not slide down by itself at a height of 50mm above the closed position.
Item Category
Basic classification General
When the door or drawer is locked, a pulling force of 200N is applied to the panel and the door or drawer should not be opened
The parts of the cabinet and its components that come into contact with the human body or the whole object should be sanded or blunted, and there should be no burrs, cutting edges or corners. The products shipped out of the factory should have the standardized Chinese factory name and address, see 8.1 Product name, quality grade, see 8.1
Product standard number, inspection certificate, see 6.1 Product quality assurance, see B.2
Note, serial number 24, 36, 37, 38, 50, 54. The defects mentioned are counted as one defect regardless of whether they are the same or not. If a defect is obvious enough to affect the quality of the product, the tester has the right to veto this major item. 8. This requirement is not required when the independent cabinet is connected to the base cabinet or the countertop. Table 3 Physical and chemical performance requirements of the base cabinet countertop
Test items
Resistance to commercial temperature
Attached water vapor
Test conditions
(120±3)C.2h
Water vapor, (60±5)min
Technical requirements
No cracks on the test piece surface
No protrusions or cracks on the test piece surface
No obvious discoloration on the test piece surface
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Project classification
Basic [Classification General
Test item from
Dry heat resistance
Hot and cold difference
Scratch resistance
Pollution performance
Acid and alkali resistance
Impact resistance
No stain and residual 2
QB/T 2531—2001
Table 3 (continued)
Reduced test conditions
(180±1)C, 20min
(80±2)℃, (120±10)min
(~20±2)C, (120±30)min
1.SN. Scratch for one week
A small amount of test solution, 24h
30% acetic acid solution, 24h
30% sodium carbonate solution, 24h
Paint film impactor, 200mm||t t||Class-type stain test
Technical requirements
No cracks, bubbles, or wrinkles on the test piece surface
No obvious discoloration on the test piece surface
No continuous scratches on the test piece surface
No pollution or corrosion on the surface
Slight pollution marks on the surface
Corrosion marks on the flat part of the wheat flour
No peeling or delamination between the adhesive layer or veneer layer and the substrate
Note: 1. The test solution includes soy sauce, coffee, red wine, tea, and edible oil specified in GBT4893.1. 2. Only the peeling requirements are made for the Xinjiang-veneered countertops. Table 4 Physical and chemical performance requirements for other parts of the cabinet
Test items
Acid and alkali resistance
Pollution resistance
Test conditions
30% acetic acid solution, 24h
10% sodium carbonate solution, 24h
Technical requirements
Project classification
Basic classificationGeneral
Item classification
Basic classificationGeneral
No pollution or corrosion marks on the surface
A small amount of light pollution on the surface
A small amount of test (Note 1 in Test 3), 24h
C-level local corrosion marks on the surface
Table 5 Physical and chemical performance requirements for metal parts
Test Test items
Salt spray test
Built-in
Special accessories
Acid spray test
Salt spray test
Test conditions
PH=7.0±0.1
pH=3.0±0.1
pH=7.0±0.1
Rust spots,
Number of defects
Technical requirements
≥7 level
≥9 level
≥6 level
≥9 level
≥6 level
Project classification
Basic classification General
Test items
Acid spray test
QB/T 253t -2001
Table 5 (continued)
Test piece
pH=3,0±0.1
Technical requirements
Allowable number of rust spots and
spot defects
After the salt resistance and acid mist resistance tests, the metal parts should not have obvious loss of gloss or discoloration on the surface.Table 6 Requirements for table strength and durability
Test items
Static load
Vertical impact
Continuous vertical
Static load
Durability
Test piece
Force 1000N, 10 times
Impact height 140mm, 2 times
Load 1.5kg/dm, 7 days
Force 150N
Technical requirements
According to Chapter 8 of GB/T10357.1--1989
Evaluation test qualified
No damage on the tabletop,
According to GB/T10357.1
30,000 times||tt ||—Chapter 8 of 1989
20,000 times of assessment test passed
15,000 times
Countertop clearance <0.4%
Countertop without damage
Test items for strength and durability requirements of base cabinet, cabinet body and independent cabinetbZxz.net
Shelf
Shelf support strength
Bottom strength
Sliding door durability
Sliding door strength
Sliding door slams open
Durability of sliding door and rolling door opened and closed sideways
Sliding door and lifting door opened and closed sideways slams shut
Strength of flap door
Durability of flap door opened and closed vertically
Strong slam of vertically opened and closed replacement door
Durability of drawers, pull-out baskets and slides
Structural strength of drawers and pull-out baskets
Drawers, pull-out bars and slides Road strength
Strength test of main structure and base frame
Test conditions
Load 1.5kg/dm2, 7 days
Shelf: 1.5kg/dm2,
Item classification
Basic classification General
Item classification
Basic classification
I General
Technical requirements
According to GB/T 10357.5
-1989 Chapter 9
Impact energy t, 08 N·m,10 times Assessment test qualified 750N, 10 times
Mass disk 3kg, 40,000 times
Mass 20kg:10 times
Pre-measurement 1.5kg, 10 times
20,000 times
Mass 3.0kg, 10 times
Force 200N, 10 models
【10,000 times
10,000 times
0.33kg/dm2,40,000 times
Force 60N, 10 times
Force 350N, 10 times
Force 300N.10 times
Note 1. The deflection of the shelf is the ratio of the middle position of the shelf to its length. 5.2 Installation requirements
Dip plate<0.35%
Support position≤3.0mm
According to Chapter 9 of GB/T10357.5-1989
Evaluation test qualified
According to Chapter 9 of GB/T10357.5-1989, the displacement value d<10.0mm
5.2.1 The connection and fit between corner cabinets, end panels and corresponding kitchen cabinets and walls should be firm, tight and smooth, and there should be no broken or loose joints.
5.2.2 When installing base cabinets and wall cabinets, the fit between each cabinet body, cabinet body and countertop, cabinet body and base should be tight and smooth, and the joints should be firm and should not be loose.
5.2.3 When installing base cabinets and wall cabinets, the avoidance requirements of various pipelines and meters should be met. B
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QB/T2531—2001
5.2.4 The installation of drainage pipes, sinks and kitchen furniture should be free of seepage and condensation. 5.2.5 The cabinet opening for placing equipment should reserve the required pipeline position and installation gap, and should be provided with notches and process holes that meet the needs of equipment placement.
5.2.6 The joints of split countertops should be ≤0.2mm, and the installation position difference should be ≤2.0mm. 6 Test methods
6.1 The determination of the main dimensions in Table 2 shall be carried out in accordance with 5.3 of GBT3324-1995. The determination of No. 60 (safety distance) and 62 (rolling door sliding distance) in Table 2 are the same as 5.3 of this standard. The determination of the deviation of the overall dimensions and the shape and position tolerance of the kitchen cabinet in Table 2 shall be carried out in accordance with 5.4 of this standard. The determination of installation position difference and joints in 5.2.6 of the installation requirements (if necessary) are the same as 5.4.5 and 5.4.6 of the standard.
6.2 Determination of wood moisture content
Table 2 No. 25 The determination of wood moisture content shall be carried out in accordance with 5.2 of GB/T3324-1995. Note: In arbitration inspection or in case of disputes, the determination of wood moisture content shall be carried out in accordance with GB/T1931. 6.3 Appearance inspection
Material requirements (Table 2 No. 20~24), metal parts appearance requirements (Table 2 No. 36~39), woodworking and finishing requirements (Table 2 No. 40~54), structural safety requirements Table 2 No. 61, 64, etc. are appearance inspection items, which shall be inspected by three persons under natural light or light similar to natural light with an illumination of 300x~6001x (e.g. 40W fluorescent lamp), and the majority of the same conclusions shall be the inspection result. In case of dispute or mutual agreement, a magnifying glass may be used for inspection. 6.4 The test method for harmful substances limit of No. 26 to 30 in Table 2 shall be carried out in accordance with Chapter 5 of GB18584-2001. 6.5 The flame retardancy test method of table 2 No. 31 countertop is shown in Appendix A (Standard Appendix). 6.6 Physical and chemical performance test method
6.6.1 The physical and chemical performance test method of the display cabinet is carried out directly on the countertop or front panel, or on a sample made of the same material and process as the countertop or front panel; the test results are graded and evaluated according to the result expression or evaluation in the corresponding test method.
6.6.2 The acidity and alkalinity of kitchen cabinets (Table 3 No. 7, Table 4 No. 1) shall be carried out in accordance with GB4893.1, and the flat heat resistance (Table 3 No. 3) shall be carried out in accordance with GB/F4893.3: the impact resistance (Table 3 No. 8) shall be carried out in accordance with GB/T4893.9: other test items (Table 3 No. 1, 2, 4, 5, 6, 9, Table 4 No. 2) shall be carried out in accordance with GB/T17657-1999, among which the resistance to cold and hot temperature difference (Table 3 No. 4) shall be carried out in accordance with 4.31 of the standard, and the anti-pollution performance (Table 3 No. 6, Table 4 No. 2) shall be carried out in accordance with 4.37 of the standard.
6.6.3 The physical and chemical performance test method of metal parts of Table 2 No. 35 shall be carried out in accordance with QB/T3826 and QE/T3827, and the evaluation of the test results shall be carried out in accordance with line 5.6 of QB/T3832-1999. 6.8.4 Test method for the performance of drainage management in kitchen cabinets The drainage pipe (No. 32 in Table 2) is subjected to a cold and hot temperature difference test. After the drainage pipe is placed in a constant temperature and constant display box with a temperature of 80℃ and a relative humidity of 95% for 2 hours, it is immediately placed in a low-temperature refrigerator with a temperature of (0±2) for 2 hours as one test cycle. The time from one box to another box shall not exceed 2 meters. The test is carried out for three consecutive cycles. After the test, the sample is stored at room temperature for 24 hours, and then hot water at (90±2)℃ is injected into the drainage pipe to check for cracks and water leakage in the pipe.
6.7 Test methods for mechanical properties of products
6.7.1 Test methods for mechanical properties of table tops (No. 55 in Table 2) 6.7.1.1 For the static load test, continuous vertical static load test and vertical impact test methods of table tops, first assemble the table tops into a unit product or a whole according to the product structure (table top, cabinet, base) and combination form, and then conduct the test according to 7.1.1.1, 7.1.1.3 and 7.1.3 of GB/T10357.1-1989 according to the test conditions in Table 6. 6.7.1.2 Durability test of table tops A force of 150N is applied vertically to the center of the cutting table through the loading pad specified in GB/T10357.1. Each force application should complete the force application process from zero to 150N and then return to zero in no less than 1s. 6.7.2 Test method for strength and durability of base cabinets and independent cabinets Table 2 No. 56, 57 The strength and durability of base cabinets and independent cabinets shall be tested according to the test conditions in Table 7 and GB/T10357.5.
6.7.3 Stability test of independent cabinets
Table 2 No. 59 The stability test of independent cabinets shall be carried out in accordance with 5.1 of GB10357.41989. 6.7.4 Test method for ultimate strength of wall cabinets
First place the wall cabinet on a flat and hard test surface, and then test according to the test conditions in Table 2 No. 58. The overload load shall be evenly distributed on the bottom plate or shelf. 6.7.5 Locking test of cabinet doors or drawers
Test at the center of the handle or handle of the door or drawer panel with a force of 200N (Table 2 No. 63). 6.8 The installation requirements of instant furniture are not included in the scope of type inspection. Only when the user has a dispute over the installation requirements, on-site inspection shall be carried out according to this installation requirement.
7 Inspection rules
7.1 Inspection classification
Product inspection is divided into type inspection and factory inspection. Type inspection evaluates the product grade, and factory inspection determines whether the product grade meets the validity period of type inspection.
7.2 Inspection item classification
Inspection items are divided into basic items, graded items and general items. According to the provisions of Table 2, the samples are inspected for basic items, graded items and general items. The basic items and general items determine whether the inspection results are qualified, and the inspection results of graded items are respectively evaluated for the level of individual items.
7.3 Type inspection
Type inspection is a comprehensive assessment of product quality. Except for installation requirements and contract requirements, all items listed in Table 2 are type inspection items.
7.3.1 Type inspection should generally be carried out when one of the following situations occurs. a) Preliminary identification of new products or old products for conversion: b) After formal production, if there are major changes in structure, materials, and processes that may affect product performance: ) During formal production, regular inspections should be carried out after a certain amount of production, and the periodic inspection is generally one year:
d) When the product is resumed after a long period of suspension: e) When the factory inspection results are significantly different from the last type inspection: f) When the national quality supervision agency proposes a requirement for type inspection. 7.3.2 Sampling and batching rules
Random sampling within an inspection cycle, the number of samples of products in pieces is 4, 2 are sealed, and 2 are sent for inspection: the number of samples of products in sets is 2 sets, 1 set is sealed, and 1 set is sent for inspection (if there are multiple identical single pieces in a set of products, 2 of the identical single pieces are sent, and the rest are also sealed). 10
-TTKAONTKAca-8 The installation requirements of instant furniture are not included in the scope of type inspection. Only when the user has a dispute over the installation requirements, on-site inspection shall be carried out according to these installation requirements.
7 Inspection rules
7.1 Inspection classification
Product inspection is divided into type inspection and factory inspection. Type inspection evaluates the product grade, and factory inspection determines the product grade within the validity period of type inspection.
7.2 Inspection item classification
Inspection items are divided into basic items, graded items and general items. According to Table 2, samples are inspected for basic items, graded items and general items. Basic items and general items determine whether the inspection results are qualified, and the inspection results of graded items are respectively evaluated for the level of individual items.
7.3 Type inspection
Type inspection is a comprehensive assessment of product quality. Except for installation requirements and contract requirements, all items listed in Table 2 are type inspection items.
7.3.1 Type inspection should generally be carried out when one of the following situations occurs. a) Preliminary identification of new products or old products for conversion: b) After formal production, if there are major changes in structure, materials, and processes that may affect product performance: ) During formal production, regular inspections should be carried out after a certain amount of production, and the periodic inspection is generally one year:
d) When the product is resumed after a long period of suspension: e) When the factory inspection results are significantly different from the last type inspection: f) When the national quality supervision agency proposes a requirement for type inspection. 7.3.2 Sampling and batching rules
Random sampling within an inspection cycle, the number of samples of products in pieces is 4, 2 are sealed, and 2 are sent for inspection: the number of samples of products in sets is 2 sets, 1 set is sealed, and 1 set is sent for inspection (if there are multiple identical single pieces in a set of products, 2 of the identical single pieces are sent, and the rest are also sealed). 10
-TTKAONTKAca-8 The installation requirements of instant furniture are not included in the scope of type inspection. Only when the user has a dispute over the installation requirements, on-site inspection shall be carried out according to these installation requirements.
7 Inspection rules
7.1 Inspection classification
Product inspection is divided into type inspection and factory inspection. Type inspection evaluates the product grade, and factory inspection determines the product grade within the validity period of type inspection.
7.2 Inspection item classification
Inspection items are divided into basic items, graded items and general items. According to Table 2, samples are inspected for basic items, graded items and general items. Basic items and general items determine whether the inspection results are qualified, and the inspection results of graded items are respectively evaluated for the level of individual items.
7.3 Type inspection
Type inspection is a comprehensive assessment of product quality. Except for installation requirements and contract requirements, all items listed in Table 2 are type inspection items.
7.3.1 Type inspection should generally be carried out when one of the following situations occurs. a) Preliminary identification of new products or old products for conversion: b) After formal production, if there are major changes in structure, materials, and processes that may affect product performance: ) During formal production, regular inspections should be carried out after a certain amount of production, and the periodic inspection is generally one year:
d) When the product is resumed after a long period of suspension: e) When the factory inspection results are significantly different from the last type inspection: f) When the national quality supervision agency proposes a requirement for type inspection. 7.3.2 Sampling and batching rules
Random sampling within an inspection cycle, the number of samples of products in pieces is 4, 2 are sealed, and 2 are sent for inspection: the number of samples of products in sets is 2 sets, 1 set is sealed, and 1 set is sent for inspection (if there are multiple identical single pieces in a set of products, 2 of the identical single pieces are sent, and the rest are also sealed). 10
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