GB/T 17657—2013 physical and chemical properties testing method for manmade board and overcoating manmade board

Physical properties testing, following is change of content.

4.7 static bending strength and elastic modulus testing(three –point bending)------8

4.8 static bending strength and elastic modulus testing (four-point bending)------11

4.9 static bending strength testing after soaking in water at temperature of 70℃ and 100 ℃ --------------------------------------------------------------------------------------------------------14

4.10 static bending strength testing after water soaking , freezing, drying.---------16

4.11 strength testing for internal bonding-------------------------------------------------17

4.12 strength testsing for internal bonding after boiling water for 2h.----------------19

4.15 strength testing of surface bonding--- method No.1-------------------------------22

4.16 strength testing of surface bonding--- method No.--------------------------------25

4.17 strength testing of bonding ------------------------------------------------------------27

4.18 shearing strength testing for bond line ----------------------------------------------29

4.19 peeling property testing for soaking--------------------------------------------------31

4.20 peeling resistance testing -------------------------------------------------------------32

4.21 grip force testing ------------------------------------------------------------------------33

4.22 impacting toughness property testing-----------------------------------------------36

4.23 impacting toughness property testing at lower temperature--------------------36

4.24 tensile strength testing-----------------------------------------------------------------37

4.25 parallel to grain compression strength testing-------------------------------------38

Manmade plate is adopt wood or plant fibre as raw material, machining to variety of materials, bringing adhesive and other additive, glue toghther to plates or molding products. It is consist adhesive –bonded panel, chipboard, fibreboard, and other coating plate and other production.

[GB/T18259—2009, definition 2.1.1] Decorated wood-based panels, It adopts wood-based panels as basic material, with coating or decorated pannel.