VisuNet EX2 GMP RM/PC 3700 Series
Appendix
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
■
4.3
Chemical resistances of the touch screen
The foil is manufactured from a biaxially aligned polyester-based material and therefore has a
greater restistance to solvents. It is physically resistant to pencil lead with a maximum hardness
of 3HB.
The foil is resistant against the following substances (concenration 100 % - unless otherwise
specified):
Aldehyde:
Acetataldehyde
Alcohols:
Ethanol
Triacetin
Glycol
Isopropanol
56
Formaldehyde 37 - 42 %
Hexahydrophenol
Dowandol DRM/PM
Glycerin
Methanol
Diacetone alcohol