What is JEITA measuring standard?

About JEITA measuring standard:

Settings:
1. Volume control: Mute
2. Airplane Mode: ON
3. Turn-off Windows Automatic Update
4. Complete the initial settings of Anti-virus software

Common settings in Control Panel -> Power Options:
Power Plan:

1. Select Power Saver.
2. Go to Change plan settings
   • Dim the display: Never
   • Turn off the display: Never
   • Put the computer to sleep: Never
3. Go to Change plan settings -> Change advanced power settings -> Battery:
   • Critical battery -> On battery: 1%

1. Go to Control Panel -> Power Options -> Change Plan Settings -> Change advanced power settings -> Display Brightness -> On battery: 5%

JEITA Measuring Method B:
Display Brightness

1. Go to Control Panel -> Power Options -> Change Plan Settings -> Change advanced power settings -> Display Brightness -> On battery: 0%