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MODULUS OF RUPTURE TEST - GB/T 17657-1999 (4.9) (adapted)

1. TOOLS
1.1 Wood panels universal test machine accurate to 10 N
1.2 Vernier caliper accurate to 0.1 mm

2. SAMPLING
We cut three 400400 mm mother samples from 1 sheet


We then cut two Length = (20×h+50) mm (+/﹣2 mm) × Width = 75 mm final samples from each 400×400 mm mother sample and get six Length = (20×h+50) mm (+/﹣2 mm) × Width = 75 mm final samples (3 pcs with parallel to the grain and 3 pcs with perpendicular to the grain) for testing

Samples shall be free from resin wood and features such as bark, knots and resin pockets

3. TESTING PROCEDURE
3.1 The testing environment should be 20 (+/-2)℃ and 65 (+/-5)% air humidity
3.2 Place the samples on the test machine and perform the software-controlled test

 

3.3 Obtain computer-generated test report

4. ASSESSING TEST RESULTS

 
 
  
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