STC: Sound Transmission Classification - Measurement of Airborne noise
• Talking, music, television
• Single number result over a frequency range from 100 to 3150 Hz
• 50 in a laboratory setting is considered passing by Standard Setting Organizations
IIC: Impact Insulation Classification - Measurement of Vibration Noise
• Footfall, washing machine
• Single number result over a frequency range from 100 to 3150 HZ
• 50 in a lab setting is considered passing Standard for Multi-family