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The National Timber Standardization Technical Committee has three sub technical committees: Basic Standards, Log, and Sawn Timber. Release date: April 28, 2023 The National Timber Standardization Technical Committee was established in August 1984 with the approval of the National Standardization Commission, consisting of three sub technical committees: Basic Standards, Log, and Sawn Timber. Mainly responsible for organizing the formulation, revision, …

GB/T17657-2013 Test Method for Physical and Chemical Properties of Wood-based Panels and Decorative Wood-based Panels: Determination of Bond Strength 17 Determination of bonding strength 17.1 Principle To determine the bonding quality of single-panel artificial boards by causing shear failure of the adhesive layer of the specimen under tensile load 17.2 Instruments and equipment 17.2.1 Universal mechanical test, select an appropriate …

GB/T17657-2013 Test Method for Physical and Chemical Properties of Wood-based Panels and Decorative Wood-based Panels: Determination of Moisture Resistance – Boiling Water Boiling Test Determination of moisture resistance – boiling water boiling test 13.1 Principle Determine the internal bonding strength of the specimen after boiling in water. Artificial board universal testing machine. png 13.2 Instruments and equipment 13.2.1 Universal mechanical …

GB/T17657-2013 Test Method for Physical and Chemical Properties of Wood-based Panels and Decorative Wood-based Panels: Determination of Internal Bonding (Bonding) Strength after 2-hour Boiling in Water Determination of internal bonding strength after boiling in 12 2h water 12.1 Principle Determine the internal bonding strength of the specimen after boiling in water 12.2 Instruments and equipment 12.2.1 Universal mechanical testing machine …

GB/T17657-2013 Test Method for Physical and Chemical Properties of Artificial Board and Decorative Artificial Board: Determination of Internal Bonding (Bonding) Strength. 11 Determination of internal bonding strength 11.1 Principle The internal bonding strength is a measurement of the tensile strength of the specimen surface to withstand uniformly distributed tensile force until failure. The internal bonding strength is the ratio of …

GB/T17657-2013 Test Method for Physical and Chemical Properties of Wood-based Panels and Decorative Wood-based Panels: Determination of Static Bending Strength and Elastic Modulus (Three Point Bending) Determination of static bending strength and elastic modulus (three-point bending) 7.1 Principle The static bending strength and elastic modulus of three-point bending are measured by applying a load to the middle of the specimen …

Detect the bending moment and flexural modulus ratio of artificial decorative panel panels under maximum load. Three point bending test steps for artificial decorative panels: Make the test piece according to the test requirements: Size and length of the test piece: (thickness of the test piece) × 20+50）mm； Width b=(50 ± 1) mm. For hollow structural plates with tube holes …

GB/T17657-2013 Test Method for Physical and Chemical Properties of Wood-based Panels and Decorative Wood-based Panels: Determination of Peel Resistance 20 Determination of peel resistance 20.1 Principle Determine the force required to peel off the surface layer. This method is applicable to PVC film veneer artificial board. 20.2 Instruments Universal mechanical testing machine, with a load range of 0 N-500 N. …

GB/T17657-2013 Test Methods for Physical and Chemical Properties of Wood based Panels and Decorative Wood based Panels: Determination of shear strength of Adhesive Layer 18 Determination of shear strength of adhesive layer 18.1 Principle Gradually apply compressive load to the specimen to cause shear failure of the adhesive layer, in order to determine the bonding quality. 18.2 Instruments and equipment …

GB/T17657-2013 Test Method for Physical and Chemical Properties of Wood-based Panels and Decorative Wood-based Panels: Determination of Impregnation Peeling Performance 19 Determination of immersion stripping performance 19.1 Principle Determine whether the adhesive layer of the test piece has peeled off and the degree of peeling after immersion and drying. This method is applicable to single-board artificial boards. 19.2 Instruments 19.2.1 …