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 > Vinyl Flooring
  
  
  
  

DETERMINATION OF MASS PER UNIT AREA - EN 430:1994 (adapted)

1. TOOLS
1.1 Balance accurate to 10 mg
1.2 Caliper accurate to 0.1 mm

2. SAMPLING
5 samples taken at equal distances from the original board. The distance between the outer edge of the board and the nearest edge of the samples shall be minimum 100 mm

(Full boards may also be tested, provided the test report specifies this point)

3. ENVIRONMENTAL CONDITIONS
The samples shall be preconditioned for at least 24 h at (23+/-2) °C and (50+/-5)% relative humidity

The test shall be performed in the same environmental conditions

4. TESTING PROCEDURE
4.1 Measure each sample and record the dimensions to the nearest 0.1 mm



4.2 Weigh each sample and record the mass to the nearest 10 mg.

4.3 Calculate the mass per unit area of each sample in grams per square meter using the following equation: M/A; where M is the mass of the sample in grams; and A is the area of the sample in square meters

4.4 Calculate the mean value for mass per unit area for the 5 samples
4.5 For results up to and equal to 1,000 g/m2, express these to the nearest 5 g/m2. For results over 1,000 g/m2, express these to the nearest 10 g/m2
 

5. ASSESSING TEST RESULTS

Per the contract



 
  
  Copyright © 2013 China Link. All rights reserved.