Brochure | Contact Us | How to Order | Client Referrals   
Home About Us Products Quality Control Certifications Case Studies
        
  
  
Quality Control
  
Overview
  
Quality Standards
  
Inspection Procedures
  
Lab Testing
  
Guarantees
  
  
  
  
Brochure
  
PDF download

You should install Adobe Acrobat Reader to view PDF file.
 
Home > Quality Control > Lab Testing > WPC Flooring
  
  
  
  

DENSITY - GB/T 24508-2009 and GB/T17657-1999 (4.2) (adapted)

1. TOOLS
1.1 Vernier caliper accurate to 0.1 mm
1.2 Micrometer accurate to 0.01 mm
1.3 Balance accurate to 0.01 g

2. SAMPLING
3*50x50 mm

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

4. TESTING PROCEDURE
4.1 Weigh the samples (W0)
4.2 Acclimatize the samples for 24 hours
4.3 Weigh the samples (W1). If the difference in weight between W0 and W1 does not exceed 0.1%, then proceed with 4.4. Otherwise, acclimatize for successive 24 hours until the difference in weight in the last two readings does not exceed 0.1%
4.4 Weigh the samples (WN)

4.5 Calculate the samples’ volume V0 = length*width*thickness



4.6 The samples’ length and width shall be measured half way between corners
4.7 Record samples’ density (WN/V0)*1000

5. ASSESSING TEST RESULTS
Passing requirement: ≥0.85 g/cm3



 
  
  Copyright © 2013 China Link. All rights reserved.