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ABILITY TO RESIST BENDING DAMAGE - GB/T 24508-2009 and GB/T 17657-1999 (4.9.4)

1. TOOLS
1.1 Panel Universal Testing Machine accurate to 1N

1.2 Vernier caliper accurate to 0.05 mm

2. SAMPLING
3*(14xthickness of sample +50 mm) xwidth of product mm. If the product width is >180 mm, the sample width should be 180 mm

3. ENVIRONMENTAL CONDITIONS
Condition the samples in a 20(+/-2) ℃ and 65(+/-5)% relative humidity environment until they are stable

4. TESTING PROCEDURE
4.1 Measure the samples’ width and thickness accurate to 0.01 mm





4.2 Adjust the machine’s span to be 14xthickness of sample

4.3 Input the above data, proceed with testing and record the results


5. ASSESSING TEST RESULTS
Passing requirement:
Uncoated flooring: commercial ≥2,500 N; residential≥1,800N
Coated or surface treated flooring: commercial≥2,200N; residential ≥1,500N

 



 
  
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