Some standard content:
GB: 18101: 2000
This standard is formulated to meet the needs of fire safety in building interior decoration as soon as possible and to make my country's flame-retardant plywood have a unified product standard.
The combustion performance grades and requirements of this standard are determined in accordance with GB8624-1997 "Classification Method for Combustion Performance of Building Materials", and are equivalent to the corresponding grades and requirements of this standard in terms of technical content. Other technical requirements of this standard are determined in accordance with GB/T 9846.1~9846.12--1988 "Plywood", GB/T13009-1991 "Ordinary Plywood Made of Tropical Broadleaf Trees" and GB/T15104-1994 "Decorative Single-Board Veneer Artificial Board", and are equivalent to the relevant requirements of the above standards in terms of technical content. In the technical content of the specifications and dimensions of flame-retardant ordinary plywood, the requirements for the non-straightness of the four edges are added. The products covered by this standard are two types: flame-retardant ordinary plywood and flame-retardant decorative veneer plywood. This standard is proposed by the State Forestry Administration.
This standard is under the jurisdiction of the National Technical Committee for Standardization of Wood-Based Panels. The responsible drafting unit of this standard is the Institute of Wood Industry, Chinese Academy of Forestry. The participating drafting units are Tianjin Public Security Fire Department, Tianjin Fujin Wood Industry Co., Ltd., Shenzhen Everbright Wood Industry Co., Ltd., and Guangdong Yuzhu Forest Products Group Co., Ltd. The main drafters of this standard are Cao Zhongrong, He Cuihua, Xu Hua, Liu Yongdan, and Lin Yongjia. This standard is published for the first time.
1 Scope
National Standard of the People's Republic of China
Flammability-Resistant Plywood
Difficult-flammahilityplywoodGB 18101—2000
This standard specifies the definition, classification, requirements, test methods, inspection rules, and marking, labeling, packaging, transportation, and storage of flame-retardant plywood.
This standard applies to flame-retardant common glued poles and flame-retardant decorative veneer glued table tops. 2 Referenced standards
The provisions contained in the following standards are generally cited in this standard and constitute the provisions of this standard. When this standard is published, the versions shown are valid, and all standards will be revised. All parties using this standard should explore the possibility of using the latest versions of the following standards. GB86241997 Method for grading the combustion performance of building materials GB/T8625—1988 Test method for flame retardancy of building materials GB/T 8626--1588
Test method for flammability of building materials
GB/T 8627—1999
Test method for smoke density of burning or decomposition of building materials GB/T 9846.31988
GB/T 9846. 4—1988
GB/T 9846. 5--1988
GB/T 9846- 6—1988
GB/T 9846-7—1988
GB/T 9846. 11 : 1988
G3/T 9846. 12—1988
GB/T 13009—1991
GB/T 15104—J994
3 Definitions
PlywoodTechnical conditions for dimensions and tolerances of ordinary plywoodPlywoodGeneral technical conditions for ordinary plywoodPlywoodwww.bzxz.net
Plywood
Plywood
Technical conditions for appearance classification of ordinary plywood
Inspection rules for ordinary plywood
Marking, packaging, transportation and storage of ordinary plywood
Plywood
Determination of moisture content
Determination of acid bonding strength
Ordinary plywood made of tropical broad-leaved trees
Decorative veneer-faced artificial board
The following definitions are adopted in this standard.
3.1 Difficult-flammability plywood is a general term for difficult-flammability general plywood and difficult-flammability decorative veneer plywood whose combustion performance meets the requirements of Class B in GB8624. 3.2 Difficult-flammability general plywood is a general term for difficult-flammability general plywood whose combustion performance meets the requirements of Class B in GB8624. 3.3 Difficult Flammability Decorative Yeneered Plywood After flame retardant treatment, the combustion performance meets the requirements of Grade R of Taiwan CB8624, which is a decorative veneer plywood with grade B. 4 Classification
Flame-retardant plywood is divided into two categories according to its surface condition: flame-retardant ordinary plywood and flame-retardant decorative veneer plywood. Approved by the State Administration of Quality and Technical Supervision on May 19, 2000, 282
Implemented on August 1, 2000
5 Requirements
5.1 Size and Tolerance
GB18101—2000
5.1.1 The size, length, width and thickness tolerance of flame retardant plywood shall comply with the relevant provisions of GB/T9846.3 or 4.1 of GR/T13009-1991 or 5.2 of GB/T15104—1994. 5.1.2 The difference in length between the two diagonals of flame retardant plywood and the degree of warpage shall comply with the relevant provisions of GB/T9846.3 or 4.1 of GB/T13009—1991 or 5.2 of GB/T15104—1994. 5.1.3 The non-straightness of the edges of the flame retardant plywood shall not exceed 1mm/m . 5.2 Board structure
5.2.1 The structure of flame-retardant ordinary plywood shall comply with the provisions of Chapter 3 of GB/T9816.1. 5.2.2 The base material and decorative veneer of flame-retardant decorative veneer veneer plywood shall comply with the provisions of 5.1 of GB/T151041994. 5.3 The panel species or decorative veneer species of flame-retardant plywood shall be the species of the plywood. 5.4 Adhesive properties
The adhesive properties of the adhesive used to manufacture flame-retardant plywood shall comply with the requirements of 7.2 of CB/T9846.4-1988 for Class 1 plywood or Class 1 plywood.
5.5 Appearance quality grade
5.5 .1 The appearance grade of flame-retardant ordinary plywood is divided into four grades: special grade, first grade, second grade and third grade. The allowable defects of each grade shall comply with the corresponding provisions of Chapter 4 of GB/T9846.5-1988 or 4.5.4 of GB3/T13(K0g--1991. 5.5.2 The appearance quality of flame-retardant decorative veneer plywood is divided into one grade: superior grade, first grade and qualified grade. The appearance quality requirements of each grade of decorative surface shall comply with the provisions of 5.3 of GB13/T15104-1994. 5.5.3 The splicing requirements of each grade of surface board of flame-retardant ordinary plywood shall comply with the provisions of Chapter 5 of GB/T9846.5-1988. 5.5.4 The repair of flame-retardant ordinary plywood shall comply with the provisions of Chapter 6 of GB/T9846.5-1988. 5.5.5 The analysis of flame retardant on the surface board of flame-retardant plywood shall comply with the provisions of Table 1. 1 Requirements and grades for flame retardant plywood surface panels Flame retardant general plywood Flame retardant decorative veneer veneer plywood 5.6 Physical and mechanical properties Special grade, first grade First grade Third grade Superior grade First grade Qualified product 5.6.1 The physical and mechanical properties of various grades of flame retardant general plywood at the time of export shall comply with the provisions of Table 2. Table 2 Physical and mechanical properties of flame retardant general plywood Index Value Item Moisture content Strength of adhesive sheet Not allowed Not allowed Estimated performance indexes 5.6.2 The physical and mechanical properties of various grades of flame retardant decorative veneer veneer plywood shall comply with the provisions of Table 3. 283
Moisture content
No collapse and separation test
Surface joint strength
5.7 Combustion performance
GB 18101—2000
Table 3 Physical and mechanical properties of flame-retardant decorative veneer plywood Values of various properties
The peeling length of each side of the test piece veneer glue layer and each glue layer of the plywood shall not exceed 25mm20.50
The combustion performance of flame-retardant plywood shall meet the requirements of Class B flame-retardant materials specified in Chapter 3 of GB8624—1997: 8) Meet the indicators specified in GB/T8626-1988, and no burning droplets are allowed to ignite the filter paper; b) The average residual length of each group of test pieces is ≥15cm (the residual length of any test piece is >0cm), and the peak value of the smoke temperature in each test is ≤200℃;
c) The smoke density level (SDR) is ≤75.
6 Test method
6:1 Determination of size
6.1.1 The thickness, length, width, diagonal and warpage of flame retardant plywood shall be measured in accordance with the provisions of Appendix A of GB/T9846.3-1988.
6.1.2 Determination of edge sterility
Use a metal ruler or steel tape measure to touch the two corners of the board, and use a scale with a reading accuracy of 0.5mm to measure the maximum deviation between the edge of the board and the ruler, accurate to 0.5mm. If the edge of the board is convex, it is represented by "+", and if it is concave, it is represented by "-". All four sides of the board should be measured.
6.2 Appearance quality inspection
6.2.1 Generally, the appearance quality grade of flame-retardant plywood is determined by self-testing the material defects and processing defects of the flame-retardant plywood. 6.2.2 The appearance quality inspection conditions of flame-retardant decorative veneer veneer plywood shall be carried out in accordance with 6.2.1 of GB/T15104:1994. 6.3 Determination of physical and mechanical properties
6.3.1 Determination of moisture content
The moisture content of flame-retardant plywood shall be determined in accordance with GB/T9846.11. 6.3.2 Determination of bonding strength
The bonding strength of flame-retardant plywood shall be determined in accordance with GB/T9846.12. The condition of the test piece shall meet the requirements of Class I plywood or Class II plywood.
6.3.3 Immersion peeling test
The immersion peeling test of flame-retardant decorative veneer veneer plywood shall be carried out in accordance with 6.3.3 of GB/T15104-1994. 6.3.4 Determination of surface bonding strength
The surface bonding strength of flame-retardant decorative veneer veneer plywood shall be determined in accordance with GB/T15104-1994. —1994. 6.3.4. 6.3.5 The test results and calculated values shall be consistent with the significant digits of the corresponding technical requirements. 6.4 Combustion performance test
The combustion performance test of flame retardant plywood shall be carried out in accordance with GH/T8625, GB/T8626 and GB/T8627. Inspection rules
7.1 Inspection classification and inspection items
The inspection of flame retardant plywood products is divided into type inspection and factory inspection. 281
7.1.1 Type inspection
GB 18101—2000
Type inspection of flame-retardant plywood products includes appearance quality grade, specification size, physical and mechanical properties and combustion performance test. For flame-retardant decorative veneer veneer plywood, its type inspection should also include physical and mechanical properties test of base material plywood. Type inspection should be carried out in any of the following situations: a) During normal production, it should be inspected once every six months; b) When there are major changes in raw and auxiliary materials and production processes that may affect product performance; c) When resuming production after a long period of suspension;
d) National When the national quality supervision agency proposes a type inspection requirement. 7.1.2 Factory inspection
When the flame retardant plywood products are delivered from the factory, the following inspections shall be carried out: a) Appearance quality grade:
b) Specifications and dimensions:
c) Physical and mechanical properties.
7.2 Sampling plan and judgment rules
7.2.1 The sampling plan and judgment rules for the inspection of specifications, dimensions, appearance quality grade and physical and mechanical properties of flame retardant ordinary plywood shall be carried out in accordance with the relevant provisions of 5.15.5.1, 5.6.1 and GB/T 9846.6. 7.2.2 The sampling plan and judgment rules for the inspection of specifications, dimensions, appearance quality grade and physical and mechanical properties of flame retardant decorative veneer veneer plywood shall be carried out in accordance with the relevant provisions of 5.1, 5.5.2, 5.6.2 and 7 and 2 of GB/T15104-1994. 7.2.3 The samples for the combustion performance test of flame-retardant plywood shall be randomly selected from the products delivered in batches (at least 50 sheets), and the judgment rules shall be carried out in accordance with the provisions of 5.7. If the initial inspection fails, double sampling is allowed for re-inspection. If all the re-inspections are qualified, the item is judged to be qualified, otherwise it is judged to be unqualified.
7. 3 Comprehensive judgment
If the inspection results of combustion performance, appearance quality grade, specification and size, and physical and mechanical properties are all qualified, the batch of products is judged to be qualified, otherwise it is judged to be unqualified. On the premise that the combustion performance inspection is qualified, the unqualified products can be downgraded or downgraded. 7.4 Inspection report
The inspection report shall at least include the following contents: a) The standard on which the inspection is based;
b) All details of the inspected products,
c) Inspection results and inspection conclusions;
d) Inspection date, inspector and inspection unit. 8 Marking, labeling, packaging, transportation and storage 8.1 The marking, labeling, packaging, transportation and storage of flame retardant plywood shall comply with the provisions of GB/T9846.7. The factory address shall also be indicated on the outer packaging.
8.2 The back panel of each flame retardant plywood shall be marked with the "GB8624-1997B," mark.4 Inspection report
The inspection report shall at least include the following contents: a) The standard on which the inspection is based;
b) All details of the inspected product;
c) Inspection results and conclusions;
d) Inspection date, inspector and inspection unit. 8 Marking, labeling, packaging, transportation and storage 8.1 The marking, labeling, packaging, transportation and storage of flame retardant plywood shall comply with the provisions of GB/T9846.7. The factory address shall also be indicated on the outer packaging.
8.2 There shall be a "GB8624-1997B," mark on the back of each flame retardant plywood.2354 Inspection report
The inspection report shall at least include the following contents: a) The standard on which the inspection is based;
b) All details of the inspected product;
c) Inspection results and conclusions;
d) Inspection date, inspector and inspection unit. 8 Marking, labeling, packaging, transportation and storage 8.1 The marking, labeling, packaging, transportation and storage of flame retardant plywood shall comply with the provisions of GB/T9846.7. The factory address shall also be indicated on the outer packaging.
8.2 There shall be a "GB8624-1997B," mark on the back of each flame retardant plywood.235
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