Scope
EN 12299
Measurement and Evaluation of Railway Ride Comfort
EN 12299 establishes standardised methods for measuring and evaluating passenger ride comfort in railway vehicles through vibration analysis. The standard defines vibration indices including Nmv (main index), NVA (vertical), and NVD (lateral) to objectively quantify passenger comfort levels during train operation. This test is essential for railway manufacturers and operators to ensure compliance with comfort standards, validate new vehicle designs, and support passenger satisfaction assessments. Accreditation guarantees correct instrumentation setup, accurate measurement procedures, and proper calculation of comfort indices according to European rail requirements.
What it measures
- Main ride comfort index (Nmv)
- Vertical vibration discomfort (NVA)
- Lateral vibration discomfort (NVD)
- Frequency-weighted acceleration
- Overall comfort rating
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DIN EN ISO 2631-1
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BS EN ISO 2631-1
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NF EN ISO 2631-1
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UNI EN ISO 2631-1
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UNE EN ISO 2631-1
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NEN EN ISO 2631-1
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DIN EN 14363
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BS EN 14363
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NF EN 14363
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UNI EN 14363
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UNE EN 14363
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NEN EN 14363
1,399
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DIN EN ISO 9934-1
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DIN EN 50178: 1998
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Poulten Selfe and Lee
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TEMPERATURE
Viscosity constant ‘C’
Reference viscometers:
ASTM D4052 (Digital density
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IEC 61400-12 Ed.1 *
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Gleichspannung 10 mV
Quellen > 120 mV
Vorverstärker > 1,2 V
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Parallelendmaße * 0,5 mm
DIN EN ISO 3650:1999
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EN 12966: 2014 Section 4.5.4
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ÖNORM EN ISO 17637
BS EN ISO 15614-1:2017
ASTM A 370
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