Appendix
5
4
7
5
0
7
2
0
1
9
-0
9
31
4
Appendix
4.1
Chemical Resistance of Keyboard Foil
The keyboard foil is manufactured from a biaxially aligned polyester-based material and
therefore has a greater restistance to solvents. The foil is stronger and more durable than other
standard foils used on keyboards and front panels, such as polycarbonate and PVC.
The keyboard foil is resistant against the following substances: (Test method: DIN42115):
•
Alcohols
•
Dilute acids
•
Dilute alkalis
•
Esters
•
Hydrocarbons
•
Household cleaning
4.2
Anti Microbial Resistance of Keyboard Foil
The foil passed the anti microbial effectiveness tested with (Test method: AATCC Test Method
100):
•
Staphyloccus aureus (MRSA)
•
Escherichia coli 0157
•
Listeria monocytogenes
•
Pseudomonas aeruginosa
•
Salmonella enteritidis
•
Bacillus cereus
•
Streptococcus faecalis
•
Klebsiella pneumoniae
•
Aspergillus niger
•
Penicillium purpurogenum
•
Phoma violacea
•
Saccharmyyces cerevisiae
