Overview
ISO 8100-34:2021 - Lifts for the transport of persons and goods - Part 34: Measurement of lift ride quality - specifies requirements and a standardized methodology for measuring and reporting lift ride quality during lift motion. The standard defines how to quantify vibration, sound and motion-related performance parameters (for example acceleration, jerk, velocity, peak-to-peak vibration, A95, V95) that influence passenger perception. It does not prescribe acceptable or unacceptable ride-quality limits; rather it delivers uniform measurement, processing and reporting procedures so results are comparable and traceable.
Key topics and technical requirements
- Scope and definitions: Clear terminology for acceleration, vibration, jerk, velocity, A95 (95th-percentile acceleration/vibration) and V95 (95th-percentile velocity).
- Measuring instrumentation: Requirements for vibration, acceleration and sound measurement systems, including characteristics, coupling of transducers to the car floor, and calibration traceable to national standards.
- Signal processing: Prescribed boundaries (start/end points), processing of vibration data, and algorithms suitable for digital implementation to derive metrics such as maximum acceleration/jerk, A95, V95 and peak-to-peak levels.
- Evaluation of ride quality: Methods to quantify acceleration/deceleration, jerk, horizontal and vertical vibration (x, y, z axes), velocity and sound during specified motion intervals.
- Procedure and reporting: Required measurement procedures, transducer locations, preparation, personnel considerations, measurement process and standardized expression of results for reproducibility.
- Normative annexes: Annex A (calculation of peak-to-peak vibration) and Annex B (calculation of constant and non-constant acceleration regions).
Applications and who uses it
ISO 8100-34 is intended for:
- Lift manufacturers and designers to develop product specifications and validate ride quality during commissioning.
- Test laboratories and measurement engineers performing objective ride-quality assessments and producing comparable reports.
- Specifiers, consultants and building owners defining contract requirements and acceptance procedures (without using the standard to set pass/fail thresholds).
- Maintenance and retrofit teams monitoring ride performance changes over time.
Practical benefits include consistent ride-quality measurement, improved correlation with human perception, and traceability through specified calibration and reporting methods.
Related standards
Keywords: ISO 8100-34, lift ride quality, measurement of lift ride quality, lift vibration, A95, V95, jerk, acceleration, peak-to-peak, sound measurement, transducer location, calibration, lift performance parameters.