GB/T 23471-2018 in English
VALIDLaminated impregnated paper strawboard composite flooring
- Issued on:2018-06-07
- Implemented on:2019-01-01
- File Format:PDF
- Delivery:Within 1 day
$125.00
《GB/T 23471-2018浸渍纸层压秸秆复合地板》由TC416（全国林业生物质材料标准化技术委员会）归口，主管部门为国家林业和草原局。
Introduction
In-depth analysis of the National Standard of the People's Republic of China GB/T 23471—2018 Impregnated Paper Laminated Straw Composite Flooring
I. Background of Standard Formulation and Analysis of Technical Evolution
GB/T 23471—2018 "Impermeable Paper Laminated Straw Composite Flooring" is an important national standard for green and environmentally friendly flooring materials, aiming to regulate the production, testing and application of such products. Compared with the old version of the standard (GB/T23471—2009), the new version of the standard has been comprehensively optimized in terms of terminology, technical indicators and test methods.
II. Comparative analysis of standard frameworks
| Old version of the standard (GB/T23471—2009) | New version of the standard (GB/T 23471—2018) |
|---|---|
| Basic terms are defined, but the production process is not specified in detail. | The terms of wheat (rice) straw particleboard and impregnated paper laminated straw composite flooring are redefined, and the description of the production process is refined. |
| Appearance quality requirements are specified, but specific test methods for physical and chemical properties are not involved. | Key physical and chemical indicators such as static bending strength and internal bonding strength are added, and the detection process of formaldehyde emission is optimized. |
| The deviation range of the specification size is not clear. | The requirements for floor width, thickness deviation and right angle are refined, and the maximum allowable value of assembly gap is increased. |
III. Interpretation of core physical and chemical properties
Static bending strength:It is an important indicator to measure the bending resistance of the floor. The new version of the standard requires that the average value of the superior product reaches 32.0 MPa (nominal thickness 6-12mm), which is significantly improved compared with the old version.
Internal bonding strength:Reflects the internal bonding effect of the material. The new version of the standard stipulates that the minimum value of the superior product is 1.00 MPa to ensure the stability of the product in normal use.
Water absorption thickness expansion rate:Control within ≤12.0%, effectively preventing the deformation of the floor caused by moisture.
IV. Implementation Suggestions
- Manufacturers: It is recommended to establish a complete quality control system to ensure that each batch of products meets the standard requirements. Focus on monitoring the static bending strength and formaldehyde emission indicators.
- Testing agencies: They need to be equipped with advanced physical and chemical performance testing equipment, such as universal testing machines (Universal Testing Machine) and formaldehyde detectors (Formaldehyde Analyzer) to ensure the accuracy of the test results.
- User selection: Pay attention to the product's environmental certification mark and wear resistance level, and give priority to products that have achieved level 5 surface crack resistance and ≥9000 commercial grade wear resistance.
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