Some standard content:
National Standard of the People's Republic of China
General technical requirements for wooden furniture
Wooden furniture
General technical requirments1 Subject content and scope of application
This standard specifies the technical requirements and test methods for furniture. This standard applies to wooden furniture and wooden parts of other furniture. 2 Reference standards
GB/T3326 Main dimensions of tables, chairs and stools GB/T3327 Main dimensions of cabinets
GB/T3328 Main dimensions of beds
GB4893.1~4893.9 Determination of paint film on furniture surface GB/T10357.1~10357.6 Furniture mechanical properties test ZBY80002 Determination of peeling strength of soft covering materials on furniture surface ZBY80003 Determination of peeling strength of hard covering materials on furniture surface 3 Terminology
3.1 Warpage
Warpage refers to the overall flatness of the surface of the product (component). 3.2 Flatness
Flatness refers to the local flatness of the product (component) surface within the range of 0 to 150mm. 3.3 Adjacent edge verticality
Adjacent edge verticality refers to the degree of irregularity when the product (component) is rectangular. 3.4 Position difference
GB/T3324-1995
Replaces GB3324--82
Position difference refers to the distance between the two adjacent surfaces of the door and frame, door and door, door and drawer, drawer and frame, drawer and drawer in the product. 3.5 Appearance
Appearance refers to the coating or other surface treatment of the product. 3.6 Internal surface
Internal surface refers to the coating or other surface treatment of the inside of the glass door or other spaces (such as shelves, etc.) of the product. 3.7 Interior
Interior refers to the visible surface inside the door or drawer of the product. 3.8 Hidden places
Hidden places refer to places inside and outside the product that are not easily visible in general use. Approved by the State Bureau of Technical Supervision on August 17, 1995 and implemented on August 1, 1996
4 Technical requirements
4.1 Main dimensions and dimensional tolerances
GB/T 3324-1995
4.1.1 The main dimensions of tables, chairs and stools shall comply with the provisions of GB3326. 4.1.2 The main dimensions of cabinets shall comply with the provisions of GB3327. 4.1.3 The main dimensions of beds shall comply with the provisions of GB3328. 4.1.4 The limit deviation of the width, depth and height of the product is ±5mm, and the limit deviation of matching or combined products shall be positive or negative. 4.2 Shape and position tolerances
The shape and position tolerances are shown in Table 1.
Warping
Stability of foot
Flatness
Verticality of adjacent edges
Position difference
Sag, swing
4.3 Material requirements
Panel, front panel
Panel, front panel
Specimen name and specification
Diagonal length
≥1400
≥700
Diagonal length
Diagonal length
≥1000
Distance deviation between door and frame, door and adjacent surfaces (not the distance required by design), drawer and frame, drawer and Distance deviation between two adjacent surfaces of doors, drawers and drawers (not the distance required by design)
Embedded
Covered
Embedded
Covered
Upper, left and right seams
Middle and lower seams
Gap between the back of the door and the plane of the frame
Upper, left and right seams
Gap between the back of the drawer and the plane of the frame
Allowed value
GB/T3324—1995
4.3.1 The texture of the tree species used in the same unit of various types of furniture should be similar, and there should be no obvious difference in the tree species of the same glue assembly. Coniferous and broad-leaved wood should not be mixed.
4.3.2 The local decoration of the product surface is not limited to a single material species. 4.3.3 Soft tree species or artificial boards should be used as much as possible for the internal materials of the panel parts; similar tree species and artificial boards should be used for the same panel parts. 4.3.4 The moisture content of wood should not be higher than the annual average equilibrium moisture content of wood in the area where the product is processed. 4.3.5 Insect-infested wood must be treated with insecticide.
4.3.6 Decayed materials shall not be used on the surface. The area of slight decay of the material used in the internal or closed parts shall not exceed 15% of the part area, and the depth shall not exceed 25% of the material thickness
4.3.7 The material used on the surface and the storage area shall not have resin capsules. 4.3.8 The material used in the main stress-bearing parts of the product shall not be used if the diagonal degree exceeds 20%. Diagonal degree (%)-pulp apple length
Inclination height
4.3.9 The width of the knot shall not exceed 1/3 of the visible material width, and the diameter shall not exceed 12mm. After repair, it can be used without affecting the structural strength and appearance of the product.
4.3.10 Other minor material defects, such as cracks (except through cracks) and blunt edges, should be repaired and can be used if they do not affect the structural strength and appearance of the product.
4.3.11 The various artificial boards used should comply with the relevant standards. 4.4 Woodworking requirements
4.4.1 Components made of artificial boards should be edge-sealed. 4.4.2 Glue should be applied to the joints. The joints and parts should be firmly connected, and the gap at the joints on the surface should not be greater than 0.2mm. 4.4.3 The joints of supporting parts such as cold corners and railings should be firmly connected. The matching of the panel parts should not be loose. 4.4.4 The collage of veneer and other material veneers should be tight and flat, and no degumming, obvious glue penetration, bubbling, dents, indentations, surface scratches, pits, cracks, broken corners and cutting edges are allowed. The texture, pattern and color of the veneer should be symmetrical and similar. 4.4.5 The chamfers, fillets and round lines on the surface should be uniform and consistent. 4.4.6 The installation of various accessories should be tight, flat, straight and firm; there should be no broken or loose joints; there should be no missing parts, missing nails or nail penetration; the room closure parts and accessories should be flexible to use.
4.4.7 The roughness of the painted parts R≤3.2um (fine finish), the roughness of the internal unpainted parts R is 3.2~12.5um (fine finish), and the roughness of the hidden parts R is 12.5~~50μm (coarse finish). 4.4.8 The carved patterns should be uniform and clear, with distinct layers, and the symmetrical parts should be symmetrical; there should be no missing corners in the concave and convex parts, large digging, bridges, edges and corners, arcs, etc.; the bottom of the shovel should be flat; there should be no hammer marks or burrs on all parts. 4.4.9 The line type of the wood should be consistent, and the concave and convex levels should be symmetrical; the symmetrical parts should be symmetrical; the turning lines should be clear; there should be no broken burrs, knife marks or sand marks on the processed surface.
4.5 Finishing requirements
4.5.1 The color of the whole product or supporting products should be similar. The color lines at the color separation should be neat. The uncoated parts should be kept clean. The inner surface should be painted or other surface treatments should be applied.
4.5.2 The coating on the front surface (including the panel) should be flat, smooth and clear, and there should be no obvious wood pores after the paint film is dry. The surface coating of other parts should feel smooth to the touch, without obvious particles, bulging edges and unevenness. Wood pores are allowed to sink after the paint film is dry. 4.5.3 The coating should not be wrinkled, sticky or leaking. There should be no obvious processing marks, scratches, fog, white ridges, white spots, bubbles, oil, sagging, shrinkage, brush hair, powder accumulation and debris. 4.6 Physical and chemical performance requirements
Physical and chemical performance requirements for paint coatings and soft and hard coverings The physical and chemical performance requirements for paint coatings shall comply with the 8 provisions of 1, 2, 3, 4, 5, 6.7, 8, etc. in Table 2. The physical and chemical properties of soft and hard covering materials shall comply with the 8 provisions of 1, 2, 3, 5, 6, 7, 8, 9, etc. in Table 2. The test levels for various types of furniture are shown in Appendix A of GB10357. 69
Test conditions
Use conditions
And requirements
Test items
Liquid resistance 10% sodium carbonate
30% acetic acid
Moisture and heat resistance
Dry heat resistance
Adhesion
Resistance to temperature difference between hot and cold
Impact resistance
Peel strength of soft cover
Peel strength of hard cover
4.7 Mechanical property requirements
GB/T 3324--1995
Test level 2 Various types of furniture specified in the standard
Not less than level 3
Not less than level 3
Not less than level 3
Not less than level 3
1000 revolutions
Not less than level 3
3 cycles
Test level 3 Various types of furniture specified in the standard
Not less than level 3
Not less than level 3
Not less than level 3
1000 revolutions
Not less than level 2
No bubbling, cracks and obvious gloss loss
Not less than level 3
Impact height 50mm, not less than level 3
3. 5X10° N/m
1. 4X103 N/m
All kinds of furniture specified in test level 4
not less than level 2
not less than level 2
not less than level 2
not less than level 2
2000 rpm
not less than level 3
The mechanical properties test items and test levels shall be determined according to the type of test piece and the intended use conditions. Special environment and conditions of use According to the environment and conditions of use of the product, the specific test conditions and requirements shall be determined by both the supplier and the buyer. 4.7.1 The strength and durability of tables shall be qualified according to the test items specified in Articles 7.1 and 7.2 of GB10357.1. 4.7.2 The stability of chairs and stools shall be qualified according to the minimum tipping force applied in Appendix A of GB10357.2 and the test items specified in Article 6.1 (or 6.2). 4.7.3 The strength and durability of chairs shall be qualified according to the test items specified in Chapter 6 of GB10357.3. 4.7.4 The stability of cabinets shall be qualified according to the test items specified in Articles 5.1, 5.2 and 5.3 of GB10357.4; the vertical loading forces for movable parts, doors and drawers, are 100N and 150N respectively. 4.7.5 The strength and durability of cabinets shall meet the test items specified in Chapters 6, 7 and 8 of GB10357.5; the allowable values of shelf deflection, clothes hanging rod deflection, clothes hanging rod support displacement, main structure and bottom frame displacement are as follows: a.
Ratio of shelf deflection to length ≤0.5%; ratio of clothes hanging rod deflection to length ≤0.4%, b.
Displacement of clothes hanging rod support ≤3mm
Displacement value of main structure and bottom frame d<15mm. d.
4.7.6 The strength and durability of single-layer beds shall meet the test items specified in Chapter 5 of GB10357.6. 5 Test method
、5.1 Visual and sensory inspection
It should be carried out under natural light or near natural light with an illumination of 300～6001x (e.g. 40W fluorescent lamp), with a viewing distance of 700～70
GB/T 3324--1995
1000mm, by three persons, and the evaluation value shall be the majority of the same conclusions. 5.2 Determination of wood moisture content
The error of the wood moisture content meter shall not exceed ±2%. The wood moisture content shall be measured at the sampling site or in the same area. The test site is to take the test piece at a position more than 100mm above the ground, and select three parts at different positions at random. On each part, measure once at three points at random, and calculate the average value of the three parts respectively. The largest average value shall be the wood moisture content measurement value of the test piece. 5.3 Determination of main dimensions
A 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter shall be used to measure the test piece placed on a flat plate (or flat ground).
5.4 Determination of shape and position tolerance
5.4.1 Determination of warpage
A warpage measuring instrument with an error of no more than 0.1mm shall be used. During the measurement, the instrument shall be placed on the diagonal line of the test piece, and the distance between the midpoint of the test piece and the reference straight line shall be measured. The maximum value shall be the warpage evaluation value. 5.4.2 Determination of the stability of the footingWww.bzxZ.net
A feeler gauge shall be used. During the measurement, the test piece shall be placed on a flat plate and the distance between a certain foot and the flat plate shall be measured. 5.4.3 Determination of flatness
A flatness measuring instrument with an error of no more than 0.03mm shall be used. During the measurement, the instrument shall be placed on the measured surface of the test piece. At the same time, select the three most serious unevenness parts, measure the distance between the reference straight line within a length of 0 to 150mm, and take the maximum value as the flatness evaluation value.
5.4.4 Determination of verticality of adjacent sides
A 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter should be used. When measuring, use the steel tape measure (or steel ruler) to measure the two diagonals of the rectangular specimen, and the difference is the verticality evaluation value of the adjacent sides. 5.4.5 Determination of position difference
A position difference measuring instrument with an error of no more than 0.1mm should be used. When measuring, the part with the largest distance between the two adjacent surfaces of the door and the frame (or the door and the door, the door and the drawer, the drawer and the frame, the drawer and the drawer) should be selected. One of the adjacent surfaces is selected as the measurement reference surface, and the base surface of the instrument is placed on the measurement base surface. The measuring surface of the instrument is measured on the other adjacent surface (and one or more parts are measured along the adjacent surface). When all the measured values are positive (or negative), the maximum absolute value is the position difference measurement value; when the measured values are positive or negative, the sum of the maximum absolute values is the position difference measurement value, and the maximum measured value is the position difference evaluation value. When the design requires a certain distance between the two adjacent surfaces of the door (or drawer) and the frame, the distance value should be deducted from each measured value.
5.4.6 Split measurement
A feeler gauge should be used for measurement.
When measuring the split of the drawer, the drawer should be close to either side. Measure the maximum split on the other side; when measuring the door split, measure the largest part of the split, and the maximum value measured is the split evaluation value. 5.4.7 Determination of the degree of droop and swing
A 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter and a steel ruler with a length greater than 700mm and a straightness of no more than 0.2mm shall be used. During the measurement, the steel ruler shall be placed on the horizontal plane and side adjacent to the test piece measurement position, and the free droop of the horizontal side of the drawer surface and the left and right swing of the side of the drawer surface shall be measured when the test piece is extended to two-thirds of the total length. The maximum value measured is the evaluation value of the droop and swing.
5.5 Physical and chemical performance test
5.5.1 Physical and chemical performance test of paint film
The physical and chemical performance test of paint film shall comply with the provisions of GB4893. 5.5.2 Physical and chemical performance test of soft and hard covering The determination of the peeling strength of soft and hard covering materials shall comply with the provisions of ZBY80002 and ZBY80003 respectively. 71
5.6 Mechanical properties test
5.6.1 Strength and durability test of tables
GB/T 3324 -- 1995
The strength and durability test of tables shall comply with the provisions of GB10357.1. 5.6.2 Stability test of chairs and stools
The stability test of chairs and stools shall comply with the provisions of GB10357.2. 5.6.3 Strength and durability test of chairs and stools
The strength and durability test of chairs and stools shall comply with the provisions of GB10357.3. 5.6.4 Stability test of cabinets
The stability test of cabinets shall comply with the provisions of GB10357.4. 5.6.5 Strength and durability of cabinets
The strength and durability test of cabinets shall comply with the provisions of GB10357.5. 5.6.6 Strength and durability test of single-layer bed
Strength and durability test of single-layer bed shall comply with the provisions of GB10357.6. 6 Marking, packaging, transportation and storage
6.1 Finished products shall be marked with the manufacturer's name (trademark), factory address and qualified mark when leaving the factory. 6.2 Finished products shall be padded or packaged during transportation to prevent damage or rain. 6.3 Finished products shall be kept dry and ventilated during storage to prevent pollution and sunlight; padded materials shall be added when stacking to prevent crushing. Additional remarks:
This standard was proposed by China Light Industry General Association.
This standard is under the jurisdiction of the National Furniture Standardization Center. This standard was drafted by Shanghai Furniture Research Institute and Shanghai Furniture Company. The main drafters of this standard are Wang Agen, Cai Ningsheng, Li Enshan and Wang Jinwei. 724X103 N/m
All kinds of furniture specified in test level 4
not less than level 2
not less than level 2
not less than level 2
not less than level 2
2000 rpm
not less than level 3
The mechanical properties test items and test levels shall be determined according to the type of test piece and the intended use conditions. Special environment and conditions of use According to the environment and conditions of use of the product, the specific test conditions and requirements shall be determined by both the supplier and the buyer. 4.7.1 The strength and durability of tables shall be qualified according to the test items specified in Articles 7.1 and 7.2 of GB10357.1. 4.7.2 The stability of chairs and stools shall be qualified according to the minimum tipping force applied in Appendix A of GB10357.2 and the test items specified in Article 6.1 (or 6.2). 4.7.3 The strength and durability of chairs shall be qualified according to the test items specified in Chapter 6 of GB10357.3. 4.7.4 The stability of cabinets shall be qualified according to the test items specified in Articles 5.1, 5.2 and 5.3 of GB10357.4; the vertical loading forces for movable parts, doors and drawers, are 100N and 150N respectively. 4.7.5 The strength and durability of cabinets shall meet the test items specified in Chapters 6, 7 and 8 of GB10357.5; the allowable values of shelf deflection, clothes hanging rod deflection, clothes hanging rod support displacement, main structure and bottom frame displacement are as follows: a.
Ratio of shelf deflection to length ≤0.5%; ratio of clothes hanging rod deflection to length ≤0.4%, b.
Displacement of clothes hanging rod support ≤3mm
Displacement value of main structure and bottom frame d<15mm. d.
4.7.6 The strength and durability of single-layer beds shall meet the test items specified in Chapter 5 of GB10357.6. 5 Test method
、5.1 Visual and sensory inspection
It should be carried out under natural light or near natural light with an illumination of 300～6001x (e.g. 40W fluorescent lamp), with a viewing distance of 700～70
GB/T 3324--1995
1000mm, by three persons, and the evaluation value shall be the majority of the same conclusions. 5.2 Determination of wood moisture content
The error of the wood moisture content meter shall not exceed ±2%. The wood moisture content shall be measured at the sampling site or in the same area. The test site is to take the test piece at a position more than 100mm above the ground, and select three parts at different positions at random. On each part, measure once at three points at random, and calculate the average value of the three parts respectively. The largest average value shall be the wood moisture content measurement value of the test piece. 5.3 Determination of main dimensions
A 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter shall be used to measure the test piece placed on a flat plate (or flat ground).
5.4 Determination of shape and position tolerance
5.4.1 Determination of warpage
A warpage measuring instrument with an error of no more than 0.1mm shall be used. During the measurement, the instrument shall be placed on the diagonal line of the test piece, and the distance between the midpoint of the test piece and the reference straight line shall be measured. The maximum value shall be the warpage evaluation value. 5.4.2 Determination of the stability of the footing
A feeler gauge shall be used. During the measurement, the test piece shall be placed on a flat plate and the distance between a certain foot and the flat plate shall be measured. 5.4.3 Determination of flatness
A flatness measuring instrument with an error of no more than 0.03mm shall be used. During the measurement, the instrument shall be placed on the measured surface of the test piece. At the same time, select the three most serious unevenness parts, measure the distance between the reference straight line within a length of 0 to 150mm, and take the maximum value as the flatness evaluation value.
5.4.4 Determination of verticality of adjacent sides
A 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter should be used. When measuring, use the steel tape measure (or steel ruler) to measure the two diagonals of the rectangular specimen, and the difference is the verticality evaluation value of the adjacent sides. 5.4.5 Determination of position difference
A position difference measuring instrument with an error of no more than 0.1mm should be used. When measuring, the part with the largest distance between the two adjacent surfaces of the door and the frame (or the door and the door, the door and the drawer, the drawer and the frame, the drawer and the drawer) should be selected. One of the adjacent surfaces is selected as the measurement reference surface, and the base surface of the instrument is placed on the measurement base surface. The measuring surface of the instrument is measured on the other adjacent surface (and one or more parts are measured along the adjacent surface). When all the measured values are positive (or negative), the maximum absolute value is the position difference measurement value; when the measured values are positive or negative, the sum of the maximum absolute values is the position difference measurement value, and the maximum measured value is the position difference evaluation value. When the design requires a certain distance between the two adjacent surfaces of the door (or drawer) and the frame, the distance value should be deducted from each measured value.
5.4.6 Split measurement
A feeler gauge should be used for measurement.
When measuring the split of the drawer, the drawer should be close to either side. Measure the maximum split on the other side; when measuring the door split, measure the largest part of the split, and the maximum value measured is the split evaluation value. 5.4.7 Determination of the degree of droop and swing
A 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter and a steel ruler with a length of more than 700mm and a straightness of no more than 0.2mm should be used. During the measurement, the steel ruler is placed on the horizontal plane and side adjacent to the test piece's measurement position. The free droop of the horizontal side of the drawer surface and the left and right swing of the side of the drawer surface are measured when the test piece is extended to two-thirds of the total length. The maximum value measured is the evaluation value of the droop and swing.
5.5 Physical and chemical performance test
5.5.1 Physical and chemical performance test of paint film
The physical and chemical performance test of paint film shall comply with the provisions of GB4893. 5.5.2 Physical and chemical performance test of soft and hard covering The determination of the peel strength of soft and hard covering materials shall comply with the provisions of ZBY80002 and ZBY80003 respectively. 71
5.6 Mechanical properties test
5.6.1 Strength and durability test of tables
GB/T 3324 -- 1995
The strength and durability test of tables shall comply with the provisions of GB10357.1. 5.6.2 Stability test of chairs and stools
The stability test of chairs and stools shall comply with the provisions of GB10357.2. 5.6.3 Strength and durability test of chairs and stools
The strength and durability test of chairs and stools shall comply with the provisions of GB10357.3. 5.6.4 Stability test of cabinets
The stability test of cabinets shall comply with the provisions of GB10357.4. 5.6.5 Strength and durability of cabinets
The strength and durability test of cabinets shall comply with the provisions of GB10357.5. 5.6.6 Strength and durability test of single-layer bed
Strength and durability test of single-layer bed shall comply with the provisions of GB10357.6. 6 Marking, packaging, transportation and storage
6.1 Finished products shall be marked with the manufacturer's name (trademark), factory address and qualified mark when leaving the factory. 6.2 Finished products shall be padded or packaged during transportation to prevent damage or rain. 6.3 Finished products shall be kept dry and ventilated during storage to prevent pollution and sunlight; padded materials shall be added when stacking to prevent crushing. Additional remarks:
This standard was proposed by China Light Industry General Association.
This standard is under the jurisdiction of the National Furniture Standardization Center. This standard was drafted by Shanghai Furniture Research Institute and Shanghai Furniture Company. The main drafters of this standard are Wang Agen, Cai Ningsheng, Li Enshan and Wang Jinwei. 724X103 N/m
All kinds of furniture specified in test level 4
not less than level 2
not less than level 2
not less than level 2
not less than level 2
2000 rpm
not less than level 3
The mechanical properties test items and test levels shall be determined according to the type of test piece and the intended use conditions. Special environment and conditions of use According to the environment and conditions of use of the product, the specific test conditions and requirements shall be determined by both the supplier and the buyer. 4.7.1 The strength and durability of tables shall be qualified according to the test items specified in Articles 7.1 and 7.2 of GB10357.1. 4.7.2 The stability of chairs and stools shall be qualified according to the minimum tipping force applied in Appendix A of GB10357.2 and the test items specified in Article 6.1 (or 6.2). 4.7.3 The strength and durability of chairs shall be qualified according to the test items specified in Chapter 6 of GB10357.3. 4.7.4 The stability of cabinets shall be qualified according to the test items specified in Articles 5.1, 5.2 and 5.3 of GB10357.4; the vertical loading forces for movable parts, doors and drawers, are 100N and 150N respectively. 4.7.5 The strength and durability of cabinets shall meet the test items specified in Chapters 6, 7 and 8 of GB10357.5; the allowable values of shelf deflection, clothes hanging rod deflection, clothes hanging rod support displacement, main structure and bottom frame displacement are as follows: a.
Ratio of shelf deflection to length ≤0.5%; ratio of clothes hanging rod deflection to length ≤0.4%, b.
Displacement of clothes hanging rod support ≤3mm
Displacement value of main structure and bottom frame d<15mm. d.
4.7.6 The strength and durability of single-layer beds shall meet the test items specified in Chapter 5 of GB10357.6. 5 Test method
、5.1 Visual and sensory inspection
It should be carried out under natural light or near natural light with an illumination of 300～6001x (e.g. 40W fluorescent lamp), with a viewing distance of 700～70
GB/T 3324--1995
1000mm, by three persons, and the evaluation value shall be the majority of the same conclusions. 5.2 Determination of wood moisture content
The error of the wood moisture content meter shall not exceed ±2%. The wood moisture content shall be measured at the sampling site or in the same area. The test site is to take the test piece at a position more than 100mm above the ground, and select three parts at different positions at random. On each part, measure once at three points at random, and calculate the average value of the three parts respectively. The largest average value shall be the wood moisture content measurement value of the test piece. 5.3 Determination of main dimensions
A 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter shall be used to measure the test piece placed on a flat plate (or flat ground).
5.4 Determination of shape and position tolerance
5.4.1 Determination of warpage
A warpage measuring instrument with an error of no more than 0.1mm shall be used. During the measurement, the instrument shall be placed on the diagonal line of the test piece, and the distance between the midpoint of the test piece and the reference straight line shall be measured. The maximum value shall be the warpage evaluation value. 5.4.2 Determination of the stability of the footing
A feeler gauge shall be used. During the measurement, the test piece shall be placed on a flat plate and the distance between a certain foot and the flat plate shall be measured. 5.4.3 Determination of flatness
A flatness measuring instrument with an error of no more than 0.03mm shall be used. During the measurement, the instrument shall be placed on the measured surface of the test piece. At the same time, select the three most serious unevenness parts, measure the distance between the reference straight line within a length of 0 to 150mm, and take the maximum value as the flatness evaluation value.
5.4.4 Determination of verticality of adjacent sides
A 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter should be used. When measuring, use the steel tape measure (or steel ruler) to measure the two diagonals of the rectangular specimen, and the difference is the verticality evaluation value of the adjacent sides. 5.4.5 Determination of position difference
A position difference measuring instrument with an error of no more than 0.1mm should be used. When measuring, the part with the largest distance between the two adjacent surfaces of the door and the frame (or the door and the door, the door and the drawer, the drawer and the frame, the drawer and the drawer) should be selected. One of the adjacent surfaces is selected as the measurement reference surface, and the base surface of the instrument is placed on the measurement base surface. The measuring surface of the instrument is measured on the other adjacent surface (and one or more parts are measured along the adjacent surface). When all the measured values are positive (or negative), the maximum absolute value is the position difference measurement value; when the measured values are positive or negative, the sum of the maximum absolute values is the position difference measurement value, and the maximum measured value is the position difference evaluation value. When the design requires a certain distance between the two adjacent surfaces of the door (or drawer) and the frame, the distance value should be deducted from each measured value.
5.4.6 Split measurement
A feeler gauge should be used for measurement.
When measuring the split of the drawer, the drawer should be close to either side. Measure the maximum split on the other side; when measuring the door split, measure the largest part of the split, and the maximum value measured is the split evaluation value. 5.4.7 Determination of the degree of droop and swing
A 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter and a steel ruler with a length of more than 700mm and a straightness of no more than 0.2mm should be used. During the measurement, the steel ruler is placed on the horizontal plane and side adjacent to the test piece's measurement position. The free droop of the horizontal side of the drawer surface and the left and right swing of the side of the drawer surface are measured when the test piece is extended to two-thirds of the total length. The maximum value measured is the evaluation value of the droop and swing.
5.5 Physical and chemical performance test
5.5.1 Physical and chemical performance test of paint film
The physical and chemical performance test of paint film shall comply with the provisions of GB4893. 5.5.2 Physical and chemical performance test of soft and hard covering The determination of the peel strength of soft and hard covering materials shall comply with the provisions of ZBY80002 and ZBY80003 respectively. 71
5.6 Mechanical properties test
5.6.1 Strength and durability test of tables
GB/T 3324 -- 1995
The strength and durability test of tables shall comply with the provisions of GB10357.1. 5.6.2 Stability test of chairs and stools
The stability test of chairs and stools shall comply with the provisions of GB10357.2. 5.6.3 Strength and durability test of chairs and stools
The strength and durability test of chairs and stools shall comply with the provisions of GB10357.3. 5.6.4 Stability test of cabinets
The stability test of cabinets shall comply with the provisions of GB10357.4. 5.6.5 Strength and durability of cabinets
The strength and durability test of cabinets shall comply with the provisions of GB10357.5. 5.6.6 Strength and durability test of single-layer bed
Strength and durability test of single-layer bed shall comply with the provisions of GB10357.6. 6 Marking, packaging, transportation and storage
6.1 Finished products shall be marked with the manufacturer's name (trademark), factory address and qualified mark when leaving the factory. 6.2 Finished products shall be padded or packaged during transportation to prevent damage or rain. 6.3 Finished products shall be kept dry and ventilated during storage to prevent pollution and sunlight; padded materials shall be added when stacking to prevent crushing. Additional remarks:
This standard was proposed by China Light Industry General Association.
This standard is under the jurisdiction of the National Furniture Standardization Center. This standard was drafted by Shanghai Furniture Research Institute and Shanghai Furniture Company. The main drafters of this standard are Wang Agen, Cai Ningsheng, Li Enshan and Wang Jinwei. 72
The displacement of the clothes hanging rod support is ≤3mm
The displacement value of the main structure and the bottom frame is d<15mm. d.
4.7.6 The strength and durability of the single-layer bed shall meet the test items specified in Chapter 5 of GB10357.6. 5 Test methods
, 5.1 Visual and sensory inspection
It should be carried out under natural light or near natural light with an illumination range of 300~6001x (such as 40W fluorescent lamp), with a viewing distance of 700~70
GB/T 3324--1995
1000mm, and inspected by three people together, and the majority of the same conclusions shall be the evaluation value. 5.2 Determination of wood moisture content
The error of the wood moisture content meter shall not exceed ±2%. The wood moisture content shall be measured at the sampling site or in the same area. Test location: Take the position of the test piece above 100mm from the ground, select three parts in different positions, measure once at three points on each part, and find the average value of the three parts. The largest average value is the wood moisture content of the test piece. 5.3 Main dimension measurement
A 3m steel tape measure (or steel ruler) with an error of no more than 0.6mm per meter should be used to measure the test piece placed on a flat plate (or flat ground).
5.4 Shape and position tolerance measurement
5.4.1 Warpage measurement
A warpage measurement instrument with an error of no more than 0.1mm should be used. When measuring, place the instrument on the diagonal of the test piece, measure the distance between the midpoint of the test piece and the reference straight line, and take one of the maximum values as the warpage evaluation value. 5.4.2 The footing stability test
should be carried out with a feeler gauge. During the test, the specimen is placed on a flat plate and the distance between a foot and the flat plate is measured. 5.4.3 Flatness test
should be carried out with a flatness tester with an error of no more than 0.03mm. During the test, the tester is placed on the tested surface of the specimen. At the same time, the three most serious unevenness parts are selected, and the distance between the reference straight line within a length of 0 to 150mm is measured. The maximum value is the flatness evaluation value.
5.4.4 The verticality test of the adjacent side
should be carried out with a 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter. During the test, the two diagonals of the rectangular specimen are measured with a steel tape measure (or steel ruler), and the difference is the verticality evaluation value of the adjacent side. 5.4.5 Position difference test
should be carried out with a position difference tester with an error of no more than 0.1mm. When measuring, the part with the largest distance between the two adjacent surfaces of the door and the frame (or the door and the door, the door and the drawer, the drawer and the frame, the drawer and the drawer) should be selected. Among the adjacent surfaces, any one surface is selected as the measurement reference surface. The base surface of the instrument is placed on the measurement base surface, and the measuring surface of the instrument is measured on the other adjacent surface (and one or more parts are measured along the adjacent surface). When all the measured values are positive (or negative), the maximum absolute value is used as the position difference measurement value; when the measured values are positive or negative, the sum of the maximum absolute values is used as the position difference measurement value, and the maximum measurement value is used as the position difference evaluation value. When the design requires a certain distance value between the two adjacent surfaces of the door (or drawer crown) and the frame, the distance value should be deducted from each measured value.
5.4.6 Split measurement
Measurement should be carried out with a feeler gauge.
When measuring the split of the drawer crown, the drawer should be close to any side. Measure the maximum gap on the other side; when measuring the gap of the door, the maximum gap should be measured, and the maximum value measured is the gap assessment value. 5.4.7 Determination of the degree of droop and swing
A 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter and a steel ruler with a length greater than 700mm and a straightness of no more than 0.2mm should be used. When measuring, the steel ruler is placed on the horizontal plane and side adjacent to the measurement part of the specimen, and the free droop of the horizontal side of the drawer surface and the left and right swing of the side of the drawer surface are measured when the specimen is extended to two-thirds of the total length. The maximum value measured is the assessment value of the droop and swing.
5.5 Physical and chemical performance test
5.5.1 Paint film physical and chemical performance test
The paint film physical and chemical performance test shall comply with the provisions of GB4893. 5.5.2 Physical and chemical properties test of soft and hard covering The determination of peel strength of soft and hard covering materials shall comply with the provisions of ZBY80002 and ZBY80003 respectively. 71
5.6 Mechanical properties test
5.6.1 Strength and durability test of tables
GB/T 3324 -- 1995
The strength and durability test of tables shall comply with the provisions of GB10357.1. 5.6.2 Stability test of chairs and stools
The stability test of chairs and stools shall comply with the provisions of GB10357.2. 5.6.3 Strength and durability test of chairs and stools
The strength and durability test of chairs and stools shall comply with the provisions of GB10357.3. 5.6.4 Stability test of cabinets
The stability test of cabinets shall comply with the provisions of GB10357.4. 5.6.5 Strength and durability of cabinets
The strength and durability test of cabinets shall comply with the provisions of GB10357.5. 5.6.6 Strength and durability test of single-layer beds
The strength and durability test of single-layer beds shall comply with the provisions of GB10357.6. 6 Marking, packaging, transportation, storage
6.1 The finished products shall have the manufacturer's name (trademark), factory address and qualified mark when leaving the factory. 6.2 The finished products shall be padded or packaged during transportation to prevent damage or rain. 6.3 The finished products shall be kept dry and ventilated during storage to prevent pollution and sunlight; padded materials shall be added when stacking to prevent pressure damage. Additional remarks:
This standard is proposed by China Light Industry General Association.
This standard is under the jurisdiction of the National Furniture Standardization Center. This standard was drafted by Shanghai Furniture Research Institute and Shanghai Furniture Company. The main drafters of this standard are Wang Agen, Cai Ningsheng, Li Enshan and Wang Jinwei. 72
The displacement of the clothes hanging rod support is ≤3mm
The displacement value of the main structure and the bottom frame is d<15mm. d.
4.7.6 The strength and durability of the single-layer bed shall meet the test items specified in Chapter 5 of GB10357.6. 5 Test methods
, 5.1 Visual and sensory inspection
It should be carried out under natural light or near natural light with an illumination range of 300~6001x (such as 40W fluorescent lamp), with a viewing distance of 700~70
GB/T 3324--1995
1000mm, and inspected by three people together, and the majority of the same conclusions shall be the evaluation value. 5.2 Determination of wood moisture content
The error of the wood moisture content meter shall not exceed ±2%. The wood moisture content shall be measured at the sampling site or in the same area. Test location: Take the position of the test piece above 100mm from the ground, select three parts in different positions, measure once at three points on each part, and find the average value of the three parts. The largest average value is the wood moisture content of the test piece. 5.3 Main dimension measurement
A 3m steel tape measure (or steel ruler) with an error of no more than 0.6mm per meter should be used to measure the test piece placed on a flat plate (or flat ground).
5.4 Shape and position tolerance measurement
5.4.1 Warpage measurement
A warpage measurement instrument with an error of no more than 0.1mm should be used. When measuring, place the instrument on the diagonal of the test piece, measure the distance between the midpoint of the test piece and the reference straight line, and take one of the maximum values as the warpage evaluation value. 5.4.2 The footing stability test
should be carried out with a feeler gauge. During the test, the specimen is placed on a flat plate and the distance between a foot and the flat plate is measured. 5.4.3 Flatness test
should be carried out with a flatness tester with an error of no more than 0.03mm. During the test, the tester is placed on the tested surface of the specimen. At the same time, the three most serious unevenness parts are selected, and the distance between the reference straight line within a length of 0 to 150mm is measured. The maximum value is the flatness evaluation value.
5.4.4 The verticality test of the adjacent side
should be carried out with a 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter. During the test, the two diagonals of the rectangular specimen are measured with a steel tape measure (or steel ruler), and the difference is the verticality evaluation value of the adjacent side. 5.4.5 Position difference test
should be carried out with a position difference tester with an error of no more than 0.1mm. When measuring, the part with the largest distance between the two adjacent surfaces of the door and the frame (or the door and the door, the door and the drawer, the drawer and the frame, the drawer and the drawer) should be selected. Among the adjacent surfaces, any one surface is selected as the measurement reference surface. The base surface of the instrument is placed on the measurement base surface, and the measuring surface of the instrument is measured on the other adjacent surface (and one or more parts are measured along the adjacent surface). When all the measured values are positive (or negative), the maximum absolute value is used as the position difference measurement value; when the measured values are positive or negative, the sum of the maximum absolute values is used as the position difference measurement value, and the maximum measurement value is used as the position difference evaluation value. When the design requires a certain distance value between the two adjacent surfaces of the door (or drawer crown) and the frame, the distance value should be deducted from each measured value.
5.4.6 Split measurement
Measurement should be carried out with a feeler gauge.
When measuring the split of the drawer crown, the drawer should be close to any side. Measure the maximum gap on the other side; when measuring the gap of the door, the maximum gap should be measured, and the maximum value measured is the gap assessment value. 5.4.7 Determination of the degree of droop and swing
A 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter and a steel ruler with a length greater than 700mm and a straightness of no more than 0.2mm should be used. When measuring, the steel ruler is placed on the horizontal plane and side adjacent to the measurement part of the specimen, and the free droop of the horizontal side of the drawer surface and the left and right swing of the side of the drawer surface are measured when the specimen is extended to two-thirds of the total length. The maximum value measured is the assessment value of the droop and swing.
5.5 Physical and chemical performance test
5.5.1 Paint film physical and chemical performance test
The paint film physical and chemical performance test shall comply with the provisions of GB4893. 5.5.2 Physical and chemical properties test of soft and hard covering The determination of peel strength of soft and hard covering materials shall comply with the provisions of ZBY80002 and ZBY80003 respectively. 71
5.6 Mechanical properties test
5.6.1 Strength and durability test of tables
GB/T 3324 -- 1995
The strength and durability test of tables shall comply with the provisions of GB10357.1. 5.6.2 Stability test of chairs and stools
The stability test of chairs and stools shall comply with the provisions of GB10357.2. 5.6.3 Strength and durability test of chairs and stools
The strength and durability test of chairs and stools shall comply with the provisions of GB10357.3. 5.6.4 Stability test of cabinets
The stability test of cabinets shall comply with the provisions of GB10357.4. 5.6.5 Strength and durability of cabinets
The strength and durability test of cabinets shall comply with the provisions of GB10357.5. 5.6.6 Strength and durability test of single-layer beds
The strength and durability test of single-layer beds shall comply with the provisions of GB10357.6. 6 Marking, packaging, transportation, storage
6.1 The finished products shall have the manufacturer's name (trademark), factory address and qualified mark when leaving the factory. 6.2 The finished products shall be padded or packaged during transportation to prevent damage or rain. 6.3 The finished products shall be kept dry and ventilated during storage to prevent pollution and sunlight; padded materials shall be added when stacking to prevent pressure damage. Additional remarks:
This standard is proposed by China Light Industry General Association.
This standard is under the jurisdiction of the National Furniture Standardization Center. This standard was drafted by Shanghai Furniture Research Institute and Shanghai Furniture Company. The main drafters of this standard are Wang Agen, Cai Ningsheng, Li Enshan and Wang Jinwei. 721mm position difference measuring instrument. When measuring, the largest distance between the two adjacent surfaces of the door and the frame (or door and door, door and drawer, drawer and frame, drawer and drawer) should be selected. One of the adjacent surfaces is selected as the measurement reference surface. The base surface of the instrument is placed on the measurement base surface. The measuring surface of the instrument is measured on the other adjacent surface (and one or more parts are measured along the adjacent surface). When all the measured values are positive (or negative), the maximum absolute value is the position difference measurement value; when the measured values are positive or negative, the sum of the maximum absolute values is the position difference measurement value, and the maximum measurement value is the position difference evaluation value. When the design requires a certain distance value between the two adjacent surfaces of the door (or drawer crown) and the frame, the distance value should be deducted from each measured value.
5.4.6 Split measurement
A feeler gauge should be used for measurement.
When measuring the split of the drawer crown, the drawer should be close to any side. Measure the maximum gap on the other side; when measuring the gap of the door, the maximum gap should be measured, and the maximum value measured is the gap assessment value. 5.4.7 Determination of the degree of droop and swing
A 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter and a steel ruler with a length greater than 700mm and a straightness of no more than 0.2mm should be used. When measuring, the steel ruler is placed on the horizontal plane and side adjacent to the measurement part of the specimen, and the free droop of the horizontal side of the drawer surface and the left and right swing of the side of the drawer surface are measured when the specimen is extended to two-thirds of the total length. The maximum value measured is the assessment value of the droop and swing.
5.5 Physical and chemical performance test
5.5.1 Paint film physical and chemical performance test
The paint film physical and chemical performance test shall comply with the provisions of GB4893. 5.5.2 Physical and chemical properties test of soft and hard covering The determination of peel strength of soft and hard covering materials shall comply with the provisions of ZBY80002 and ZBY80003 respectively. 71
5.6 Mechanical properties test
5.6.1 Strength and durability test of tables
GB/T 3324 -- 1995
The strength and durability test of tables shall comply with the provisions of GB10357.1. 5.6.2 Stability test of chairs and stools
The stability test of chairs and stools shall comply with the provisions of GB10357.2. 5.6.3 Strength and durability test of chairs and stools
The strength and durability test of chairs and stools shall comply with the provisions of GB10357.3. 5.6.4 Stability test of cabinets
The stability test of cabinets shall comply with the provisions of GB10357.4. 5.6.5 Strength and durability of cabinets
The strength and durability test of cabinets shall comply with the provisions of GB10357.5. 5.6.6 Strength and durability test of single-layer beds
The strength and durability test of single-layer beds shall comply with the provisions of GB10357.6. 6 Marking, packaging, transportation, storage
6.1 The finished products shall have the manufacturer's name (trademark), factory address and qualified mark when leaving the factory. 6.2 The finished products shall be padded or packaged during transportation to prevent damage or rain. 6.3 The finished products shall be kept dry and ventilated during storage to prevent pollution and sunlight; padded materials shall be added when stacking to prevent pressure damage. Additional remarks:
This standard is proposed by China Light Industry General Association.
This standard is under the jurisdiction of the National Furniture Standardization Center. This standard was drafted by Shanghai Furniture Research Institute and Shanghai Furniture Company. The main drafters of this standard are Wang Agen, Cai Ningsheng, Li Enshan and Wang Jinwei. 721mm position difference measuring instrument. When measuring, the largest distance between the two adjacent surfaces of the door and the frame (or door and door, door and drawer, drawer and frame, drawer and drawer) should be selected. One of the adjacent surfaces is selected as the measurement reference surface. The base surface of the instrument is placed on the measurement base surface. The measuring surface of the instrument is measured on the other adjacent surface (and one or more parts are measured along the adjacent surface). When all the measured values are positive (or negative), the maximum absolute value is the position difference measurement value; when the measured values are positive or negative, the sum of the maximum absolute values is the position difference measurement value, and the maximum measurement value is the position difference evaluation value. When the design requires a certain distance value between the two adjacent surfaces of the door (or drawer crown) and the frame, the distance value should be deducted from each measured value.
5.4.6 Split measurement
A feeler gauge should be used for measurement.
When measuring the split of the drawer crown, the drawer should be close to any side. Measure the maximum gap on the other side; when measuring the gap of the door, the maximum gap should be measured, and the maximum value measured is the gap assessment value. 5.4.7 Determination of the degree of droop and swing
A 3m steel tape measure (or steel ruler) with an error of no more than ±0.6mm per meter and a steel ruler with a length greater than 700mm and a straightness of no more than 0.2mm should be used. When measuring, the steel ruler is placed on the horizontal plane and side adjacent to the measurement part of the specimen, and the free droop of the horizontal side of the drawer surface and the left and right swing of the side of the drawer surface are measured when the specimen is extended to two-thirds of the total length. The maximum value measured is the assessment value of the droop and swing.
5.5 Physical and chemical performance test
5.5.1 Paint film physical and chemical performance test
The paint film physical and chemical performance test shall comply with the provisions of GB4893. 5.5.2 Physical and chemical properties test of soft and hard covering The determination of peel strength of soft and hard covering materials shall comply with the provisions of ZBY80002 and ZBY80003 respectively. 71
5.6 Mechanical properties test
5.6.1 Strength and durability test of tables
GB/T 3324 -- 1995
The strength and durability test of tables shall comply with the provisions of GB10357.1. 5.6.2 Stability test of chairs and stools
The stability test of chairs and stools shall comply with the provisions of GB10357.2. 5.6.3 Strength and durability test of chairs and stools
The strength and durability test of chairs and stools shall comply with the provisions of GB10357.3. 5.6.4 Stability test of cabinets
The stability test of cabinets shall comply with the provisions of GB10357.4. 5.6.5 Strength and durability of cabinets
The strength and durability test of cabinets shall comply with the provisions of GB10357.5. 5.6.6 Strength and durability test of single-layer beds
The strength and durability test of single-layer beds shall comply with the provisions of GB10357.6. 6 Marking, packaging, transportation, storage
6.1 The finished products shall have the manufacturer's name (trademark), factory address and qualified mark when leaving the factory. 6.2 The finished products shall be padded or packaged during transportation to prevent damage or rain. 6.3 The finished products shall be kept dry and ventilated during storage to prevent pollution and sunlight; padded materials shall be added when stacking to prevent pressure damage. Additional remarks:
This standard is proposed by China Light Industry General Association.
This standard is under the jurisdiction of the National Furniture Standardization Center. This standard was drafted by Shanghai Furniture Research Institute and Shanghai Furniture Company. The main drafters of this standard are Wang Agen, Cai Ningsheng, Li Enshan and Wang Jinwei. 72
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