ISO 8100-34:2021 pdf download – Lifts for the transport of persons and goods — Part 34: Measurement of lift ride quality. 3.2 vibration variation with time of the magnitude of acceleration, when the magnitude is alternately greater and smaller than a reference level Note 1 to entry: It is expressed in metres per second squared (m/s ). Note 2 to entry: The deprecated unit Gal (Galileo) is sometimes used: 1 Gal = 0,01 m/s . 3.3 A95 value of acceleration (3.1) or vibration (3.2), within defined boundaries or limits, which 95 % of found values are equal to or less...