What is the maximum sound level is safe for human ear
You mean the sound pressure level direct at the kids ear, because the level in decibel is dependent on the distanca from the sound source. Go as far as possible from the noise. Nearly "Safe" is a level of 60 dB SPL, but it makes nervous. Learn about decreasing of the Sound pressure. Scroll down to related links and look at "Sound pressure and the inverse distance law 1/r".
The Occupational Safety and Health Administration (OSHA) has established a maximum permissible exposure level of 50 parts per million (ppm) over eight hours.
It represents the maximum daily amount of a nutrient that appears to be safe for the majority of healthy people. (beyond this level there is a health risk)
Safe in Sound was created in 2005.
Less than 5 milliamps @ 110 volt.
.03g/L or 30 ppm or 1 lb for 3800 gallons (14400 liters)
The maximum PH that would be allowed for water for swimming is about 7.8. A person should not swim in water that has a higher PH level than this to prevent chemical burns.
The maximum number of persons and weight the boat should carry. (BE-13)
The maximum safe femur load, according to SAE is the allowable injury assessment value. The maximum femur load is 2250 lbs.
How go you get sound on safe mode with networking on windows xp
The noise of a firearms discharge often exceeds the safe decibel level for human ears.
450mg