Scope
ISO 7626-5
Experimental Modal Analysis Using Impact Excitation
This test method characterises the dynamic properties of structures through experimental modal analysis using impact hammer excitation. The method measures natural frequencies, damping ratios, and mode shapes by striking the structure and recording the resulting vibration response. It is widely used in aerospace, automotive, civil engineering, and mechanical equipment development to validate structural designs and identify potential vibration issues. Accreditation ensures proper instrumentation calibration, correct measurement methodology, and reliable data interpretation for safety-critical applications.
What it measures
- Natural frequencies (modal frequencies)
- Damping ratios (modal damping)
- Mode shapes (displacement patterns)
- Frequency response functions (FRF)
- Coherence and data quality metrics
🇩🇪
DIN EN ISO 7626-1
🇬🇧
BS EN ISO 7626-1
🇫🇷
NF EN ISO 7626-1
🇮🇹
UNI EN ISO 7626-1
🇪🇸
UNE EN ISO 7626-1
🇳🇱
NEN EN ISO 7626-1
🇩🇪
DIN EN ISO 7626-2
🇬🇧
BS EN ISO 7626-2
🇫🇷
NF EN ISO 7626-2
🇮🇹
UNI EN ISO 7626-2
🇪🇸
UNE EN ISO 7626-2
🇳🇱
NEN EN ISO 7626-2
1,817
Accredited labs
19
Countries
Showing 326–350 of 386 labs
AM01 based on BS EN ISO 4833-1:
AM03 based on BS EN ISO 11290-
AM05 based on BS ISO 21528-2:
AM08 based on BS EN ISO 15213-2:2023 by
AM12 based on BS EN
+ 3 more
Spratt & Hamer
Active
BS EN ISO 140-4:1998
ISO 13829
BS EN ISO 717-2:2020
ISO 1407
BS EN ISO 9972:2015
+ 1 more
Springfields Fuels
Active
LMM2149, ASTM E112-13 by
ISO 6507-1
LMM2207, ASTM E112-13 by
LMM1862, ASTM E112-13 for
to BS EN ISO 6507-1:2018
+ 3 more
Starna Scientific
Active
Sealed liquid cells containing
prepared from NIST SRM 935a
Toluene/Hexane
Neutral density glass filters
Neutral density glass filter
+ 3 more
Stroma Built Environment
Active
DIN EN 12094-8
BS EN ISO 717-2:2020
DIN EN 950
BS EN ISO 10077-2:2017
ISO 16000-3
+ 3 more
Surrey County Council
Active
DIN EN 933-11
DIN EN 1097-6
DIN EN 1097-1
DIN EN 1097-2
DIN EN 933-3
+ 3 more
T-SQUARED Validair
Active
ISO 14644-3
DIN EN 12469
BS 7989:2001
BS EN ISO 14644-1:2015
DIN EN 14175-3
+ 1 more
TUV SUD Limited
Active
DIN EN 60068-2-64
IEC 60068-2-6
IEC 60068-2-64
IEC 60068-2-59:1990
DIN EN 50155
+ 3 more
Testo Industrial Services
Active
RELATIVE HUMIDITY
HUMIDITY continued
loggers
Gas Pressure Gauge
Saturated salt capsules
+ 2 more
Tetra Tech Consulting
Active
(HSG 248) – 2021
RPSCA1 based on HSG 248
(PCM) based on HSG 248
RPSCA2 based on HSG 248
BS 7592:2008, BS 8554:2015
+ 2 more
DC CURRENT
DC Resistance
Measurement
DC VOLTAGE
CAPACITANCE
+ 3 more
(HSG 248) – 2021
03 based on HSG 248)
QOP01 based on HSG 248
(PCM) based on HSG 248
The Original Gauge Company
Active
LENGTH
Screw ring gauges (parallel)
LENGTH cont.
As for Involute Spline Gauges
See Note 2
+ 3 more
The Testing Lab
Active
DIN EN 933-11
BS EN ISO 17892-1:2014+A1:2022
BS EN ISO 17892-10:2018
BS EN ISO 17892-11:2019
BS EN ISO 17892-2:2014
+ 3 more
No matching labs found.