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GB/T 17657-2013 English PDF (GBT17657-2013)

GB/T 17657-2013 English PDF (GBT17657-2013)

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GB/T 17657-2013: Test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels

This Standard specifies the methods for testing the physical and chemical properties of wood-based panels and surface decorated wood-based panels. This Standard is applicable to wood-based panels and surface decorated wood-based panels, and their products.
GB/T 17657-2013
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 79.060.01
B 70
Replacing GB/T 17657-1999
Test Methods of Evaluating the Properties of
Wood-based Panels and Surface Decorated
Wood-based Panels
ISSUED ON. NOVEMBER 12, 2013
IMPLEMENTED ON. APRIL 11, 2014
Jointly Issued by. General Administration of Quality Supervision,
Inspection and Quarantine of the PEOPLE Republic
of China;
Standardization Administration of the PEOPLE
Republic of China.
Table of Contents
Foreword ... 4
1 Scope ... 9
2 Normative References ... 9
3 Terms and Definitions ... 10
4 Test Methods ... 10
4.1 Measurement of Dimensions of Specimens??...??10
4.2 Density Measurement??...??12
4.3 Determination of Moisture Content??...??13
4.4 Determination of Thickness Swelling Rate of Water Absorption - Method 1??...??15 4.5 Determination of Thickness Swelling Rate of Water Absorption - Method 2??...??16 4.6 Determination of 24h Water Absorption??...??19
4.7 Determination of Static Bending Strength and Elastic Modulus (Three-Point Bending)??...??20
4.8 Determination of Static Bending Strength and Elastic Modulus (Four-Point Bending)??...??25
4.9 Determination of Static Bending Strength after Water Immersion at 70??C and 100??C??...??28
4.10 Determination of Static Bending Strength after Boiling (Immersion) - Freezing - Drying Process...??31
4.11 Determination of Internal Bonding (Bond) Strength??...??33
4.12 Determination of Internal Bonding (Bond) Strength after Boiling for 2 h??...??36 4.13 Determination of Humidity Resistance - Water Boiling Test??...??37
4.14 Determination of Humidity Resistance - Cyclic Test??...??38
4.15 Determination of Surface Bonding Strength - Method 1??...??41
4.16 Determination of Surface Bonding Strength - Method 2??...??45
4.17 Determination of Bonding Strength??...??48
4.18 Determination of Glue-line Shear Strength??...??52
4.19 Determination of Stripping Property??...??55
4.20 Determination of Resistance to Stripping Force??...??56
4.21 Determination of Screw Holding Capability??...??57
4.22 Determination of Impact Toughness Property??...??60
4.23 Determination of Low Temperature Impact Toughness Property??...??62 4.24 Determination of Tensile Strength??...??63
4.25 Determination of Compressive Strength Parallel to Grain??...??64
4.26 Determination of Accelerated Aging Property...??65
4.27 Determination of Sand Content??...??70
4.28 Determination of Surface Absorption Property??...??72
4.29 Determination of High Temperature Resistance Property??...??74
4.30 Determination of Color Fastness to Light??...??74
4.31 Determination of Color Stabilization Property??...??76
4.32 Determination of Color Difference??...??78
4.33 Determination of Dimensional Stability - Method 1??...??80
4.34 Determination of Dimensional Stability - Method 2??...??84
4.35 Determination of Surface Resistance to Water Vapor??...??87
4.36 Determination of Surface Resistance to Crazing??...??89
4.37 Determination of Surface Resistance to Alteration of Hot and Cold - Method 1 ??...??90
4.38 Determination of Surface Resistance to Alteration of Hot and Cold - Method 2 ??...??90
4.39 Determination of Surface Resistance to Scratching??...??92
4.40 Determination of Surface Resistance to Stain ?€? Method 1??...??94
4.41 Determination of Surface Resistance to Stain - Method 2??...??98
4.42 Determination of Surface Resistance to Abrasion - Method 1??...??101 4.43 Determination of Surface Resistance to Abrasion - Method 2??...??104 4.44 Determination of Surface Resistance to Abrasion - Method 3??...??105 4.45 Determination of Surface Resistance to Cigarette Burn??...??106
4.46 Determination of Surface Resistance to Dry Heat - Method 1??...??108 4.47 Determination of Surface Resistance to Dry Heat - Method 2??...??110 4.48 Determination of Surface Resistance to Heat and Humidity - Method 1??113 4.49 Determination of Surface Resistance to Heat and Humidity - Method 2??114 4.50 Determination of Surface Resistance to Boiling Water??...??117
4.51 Determination of Impact-Resistance Performance??...??119
4.52 Crack-resistance Performance Measurement (HPL Panel with Thickness t ???2mm)??...??123
4.53 Formability Determination??...??126
4.54 Electrostatic Prevention Performance Determination??...??129
4.55 Determination of Flame Retarding Property??...??131
4.56 Determination of Adhesive Force of Film??...??131
4.57 Determination of Hardness of Film??...??135
4.58 Determination of Formaldehyde Content - Perforator Method??...??138 4.59 Determination of Formaldehyde Emission - Desiccator Method??...??150 4.60 Determination of Formaldehyde Emission - 1m3 Climate Box Method??..??157 4.61 Determination of Formaldehyde Emission - Gas Analysis Method??...??162 Appendix A (Informative) Reference International Standards and Foreign
Advanced Standards of Test Methods ... 168
Appendix B (Normative) Figures of Wood Damage Rate of Plywood Specimens ... 172
Appendix C (Normative) Abnormal Damage Figure of Plywood Specimens ... 174 Appendix D (Informative) Xenon Arc Lamp Device ... 175
Foreword
This Standard was drafted according to the rules given in GB/T 1.1-2009. This Standard is a revision to GB/T 17657-1999 "Test Methods of Evaluating the Properties of Wood-based Panels and Surface Decorated Wood-based Panels". Compared with GB/T 17657-1999, the main technical differences of this Standard are as follows.
1) 17 test methods were added. ?€?Determination of Thickness Swelling Rate of Water Absorption - Method 2?€?, ?€?Determination of Static Bending Strength and Elastic Modulus (Four-Point Bending)?€?, ?€?Static Bending Strength Determination after Water Immersion at 70??C and 100??C?€?, ?€?Determination of Humidity
Resistance - Water Boiling Test?€?, ?€?Determination of Resistance to Stripping Force?€?, ?€?Determination of Surface Resistance to Abrasion - Method 2?€?,
?€?Determination of Surface Resistance to Abrasion - Method 3?€?, ?€?Determination of Accelerated Aging Property?€?, ?€?Determination of Color Fastness to Light?€?, ?€?Determination of Color Difference?€?, ?€?Determination of Surface Resistance to Dr...

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