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RESISTANCE TO STAINING - GB/T 24508-2009 and GB/T17657-1999 (4.37) (adapted)

1. TOOLS
1.1 Covers about ∮40 mm
1.2 Dripping-bottle, 30 or 60 ml
1.3 Absorbent cotton
1.4 Water or solvent (alcohol, acetone)
1.5 Testing substance (nail polish, red ink, vinegar, lipstick, soy sauce, red wine, etc.)

2. SAMPLING
1*300xwidth mm

3. TESTING PROCEDURE
3.1 Clean the sample surface with absorbent cotton impregnated in alcohol


3.2 Smear minimum 2 drops per testing substance


3.3 Cover the testing substances for 24 hours
3.4 Swab the surface with water or solvent and dry with absorbent cotton


3.5 Observe the surface from 40 mm away

4. ASSESSING TEST RESULTS
Passing requirement: no clear change

 



 
  
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