SCREW HOLDING STRENGTH - GB/T17657-1999-4.10 & GB/T 4897.3-2003 (particle board)

1. TOOLS
1.1 Wood panels universal test machine accurate to 10 N

2. SAMPLING
We cut three 400x400 mm mother samples from 1 sheet

We then cut two 150x50 mm (+/-1 mm) final samples from each 400x400 mm mother sample and obrain six final samples for testing

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

3. ENVIRONMENTAL CONDITIONS
Temperature: 20 (+/- 2) ℃
Humidity: 65 (+/-5) %

4. TESTING PROCEDURE

4.1 Fix the screws onto the samples

4.2 Place the samples on the universal test machine

5. ASSESSING TEST RESULTS
Passing requirement per the sales contract