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
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DIN EN ISO 7626-1
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BS EN ISO 7626-1
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NF EN ISO 7626-1
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UNI EN ISO 7626-1
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UNE EN ISO 7626-1
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NEN EN ISO 7626-1
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DIN EN ISO 7626-2
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BS EN ISO 7626-2
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NF EN ISO 7626-2
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UNI EN ISO 7626-2
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UNE EN ISO 7626-2
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NEN EN ISO 7626-2
1,591
Accredited labs
17
Countries
Showing 1,151–1,175 of 1,591 labs
DIN EN ISO 21528-1
NF V08-401
DIN EN ISO 21528-2
DIN EN ISO 6888-1
DIN EN ISO 6888-2
+ 3 more
DIN EN ISO 21528-1
DIN EN ISO 21528-2
DIN EN ISO 6888-1
DIN EN ISO 6888-2
DIN ISO 16649-2
+ 3 more
SINT Technology
Active
ISO 20816-1
UNI 10478-2
ASTM E837-20
UNI 10478-4
ISO 20816-8
+ 3 more
-95 kPa ≤ P < 0 kPa 0 kPa ≤ P ≤ 1 kPa 1
-95 kPa ≤ P ≤ -5 kPa - 5 kPa < P < -1 kP
(5 ± 0,2) · 10-2 mol/mol
(1000 ± 50) · 10-6 mol/mol
(15 ± 2) · 10-6 mol/mol
UNE-EN 12341
0,015 l/min ≤ Q ≤ 50 l/min
20 ⋅ 10-9 mol/mol ≤ C ≤ 500 ⋅ 10-9 mol/m
20 ⋅10-9 mol/mol ≤ C ≤ 100 ⋅ 10-9 mol/mo
100 ⋅ 10-9 mol/mol ≤ C ≤ 1000 ⋅ 10-9 mol
+ 3 more
Absolutdruck Pabs
> 0,05 bar
Negativer und
positiver Überdruck p
(ein- oder mehrgängige
+ 1 more
SKG-IKOB Certificatie
Active
DIN EN 1026
DIN EN 1629
DIN EN 12211
DIN EN ISO 13163
DIN EN 13241
+ 3 more
SKZ - Testing
Active
Bauart wie GR 1482
DIN ISO 48-4
DIN ISO 7619-2
DIN EN ISO 868
DIN EN ISO 2039-1
+ 3 more
IEC 61000-4-2: 2008
IEC 61000-4-3: 2006
DIN EN IEC 61000
IEC 61000-4-4: 2012
IEC 61000-4-5: 2005
+ 3 more
SMA Solar Technology
Active
IEC 61000-4-2: 2008
VDE 0847-4-2
IEC 61000-4-3: 2006
VDE 0847-4-3
IEC 61000-4-4: 2012
+ 3 more
DIN EN ISO 1833-13
DIN EN ISO 1833-14
DIN EN ISO 1833-16
DIN EN ISO 1833-17
DIN EN ISO 1833-18
+ 3 more
ISO 13737
NF ISO 22286
ASTM D 2137
NF F19-503
NF T60-190
+ 3 more
DIN EN 1097-7
DIN EN 1097-6
DIN EN 933-10
DIN EN 933-8
DIN EN 1427
+ 3 more
DIN EN ISO 10545-3
DIN EN 997
DIN EN ISO 10545-4
DIN EN ISO 10545-14
DIN EN ISO 10545-6
+ 3 more
SOCOTEC Asbestos
Active
(HSG 248) – 2021
SCI/ASB/003 based on HSG 248
(PCM) based on HSG 248
SCI/ASB/001 based on HSG 248
SOCOTEC UK
Active
DIN EN 13284-1
ENV/054 based on BS EN
ISO 11731
DIN EN 14791
IEC 60519-11
+ 3 more
IEC 60068-2-27
ISO 11452-4: 2020
ISO 16750-2: 2012
IEC 60068-2-78
IEC 60068-2-30
+ 3 more
Akustische Messgrößen*
Schalldruckpegel (Freifeld), (bezogen au
Freifeld-Leerlauf- oder 125 Hz
˃ 250 Hz
mit / ohne Windschirm > 8 kHz
+ 3 more
DIN EN ISO 898-2
DIN EN ISO 6506-1
DIN EN ISO 6507-1
DIN EN ISO 6508-1
DIN EN 14726
+ 3 more
SPS electronic
Active
- Gleichspannung
Messgeräte 1 mV
> 330 mV
3,3 V
Messgeräte 0,33 V
+ 3 more
Vibration measuring instruments — test m
Vibration measurements near traffic — me
Härteprüfmaschinen
Acoustics — tonality assessment (DIN 456
Noise measurement on railway vehicles —
+ 3 more
SYNLAB GHANA
Active
Alpha-Fetoprotein
Beta Human Chorionic Gonadotrophin
(BHCG), quantitative
CA 125
CEA
+ 3 more
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