Description: ten times the logarithm to the base 10 of the ratio of the square of the sound pressure to the square of the reference sound pressure; Name: acoustic pressure level
Description: Ten times the logarithm to the base 10 of the ratio of the square of the sound pressure, p, to the square of a reference value, p0, expressed in decibels; Name: Sound pressure level
Description: Usual name or brand name of the material in general language; Name: Material description of the travel wheel