2.5.1.1 Handheld terminal chemical resistance
Test 1 (Less strict)
The units under test (UUT) are placed in a closable plastic box (120 x 85 x 65 mm).
A ball of absorbent cotton appositely tinctured with solvent will be placed above the UUT; to avoid
early evaporation, a generic solid body will be put over the ball or, in a more simply way, the closable
plastic box will be closed.
After a 10 minutes wait, the eventual body and the ball of absorbent cotton will be removed; the
solvent that remains on the UUT will not be wiped o and the box will be closed immediately
afterwards for 24 hours.
Thetestwillbeperformedatenvironmentaltemperature(about20◦C).
Test 2 (Very strict)
The units under test (UUT) are fully and thoroughly wet by solvent, then will be closed into a closable
box (120 x 85 x 65 mm) for 24 h.
Approximately 5 ml solvent will be sprayed over the UUT. The box will be closed and the UUT will
remain in the closed box for at least 24 hours.
Thetestwillbeperformedatenvironmentaltemperature(about20◦C).
Touchscreen test procedure
The Touchscreen is placed into a closable plastic box (120 x 85 x 65 mm) and a ball of absorbent
cotton appositely tinctured with solvent will be placed above it, then the box will be closed for 1 h.
Thetestwillbeperformedatenvironmentaltemperature(about20◦C).
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