appearance of the remote control
is abnormal. Character markings
shall be clearly visible.
soaked in 20% salt water.
4.10
Edible oil test
Check the surface hardness
according to 6.1 (surface
hardness) and check whether the
appearance of the remote
controller is abnormal and
whether the character mark is
clear by visual inspection.
Drop edible oil (peanut oil, soybean oil or
rapeseed oil) on three different parts of the
surface of the remote controller (including
characters and graphic symbols) with a
dropper, drop 0.1mL on each part, with an area
of about 1 C ㎡, and dry it with a soft cloth
after 1 hour.
4.11
Sticker test
requirements
The sticker shall be free from
falling off and warping, and there
shall be no residue when it is torn
off
Check the label test results after vibration,
drop, high temperature and humidity.
4.12
OPP bag test
requirements
1. Printing ink shall not fall off
2. OPP bags should not be too tight
or too loose
3. OPP bags shall not be cracked
or damaged.
1. Ambient temperature 30 ± 5 ℃, #
EF74 eraser test: load: 500gf/cm ²/speed: 30
times/min, eraser wiping area: 30mm, 15 times
2. In actual assembly, the OPP bag should not
be too tight. When the corner of the OPP bag
is pinched lightly, the remote controller can
slide down from the bag by its own gravity.
3. Repeatedly disassemble and assemble the
bag for 5 times, and the OPP bag shall not be
cracked or damaged.
4.13
Pressing
strength
Check each key and check whether
the remote control function of the
remote controller is normal
according to the relevant
provisions in the height of the
key and the load force when
pressing the key.
Use a dynamometer to measure and press for
3min with a force of 30 N vertically applied
in the center of the operation plane of the
remote control key. \n
4.14 Stuck key test The key is not stuck Any point where a finger presses a key
4.15 Static load of
keys
No mechanical, electrical,
material and functional failures
Press vertically in the center of the key with
a force of 30 N for 3 minutes. \n
4.16
Working life of
keys
No mechanical, electrical,
material and functional failures
Press the keys at the speed of 60 times/minute
with the force of 300g: A: direction key,
enter key 500,000 times; Home, return,
directory key, volume key 300,000 times