ISO 7626-2

Experimental Modal Analysis – Single-Point Excitation

ISO 7626-2 describes procedures for experimental modal analysis using single-point, single-axis excitation to characterise the dynamic properties and natural frequencies of structures and machines. This test method captures frequency response functions and mode shapes essential for structural design validation, vibration control, and fault diagnosis. Aerospace, automotive, civil engineering, and machinery manufacturers use modal analysis to refine designs and understand dynamic behaviour under operational loads. Accreditation ensures rigorous application of measurement protocols and data quality standards supporting engineering confidence in structural performance predictions.

What it measures

  • Frequency response functions (FRF) over specified frequency range
  • Natural frequencies (resonances) and modal damping ratios
  • Mode shapes and structural deflection patterns
  • Coherence and measurement quality indicators
  • Dynamic stiffness and impedance characteristics
🇩🇪 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 7626-5 🇬🇧 BS EN ISO 7626-5 🇫🇷 NF EN ISO 7626-5 🇮🇹 UNI EN ISO 7626-5 🇪🇸 UNE EN ISO 7626-5 🇳🇱 NEN EN ISO 7626-5
1,817 Accredited labs
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BARLOVENTO RECURSOS NATURALES, S.L. (Unipersonal) (BARLOVENTO APPLUS+)

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ENAC LE1004 Logroño, ES
IEC 61400-11:2012/ AMD:2018 IEC 61400-12-2 IEC 61400-50-2 IEC 61400-12-1 IEC 61400-12-3 + 3 more
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BASEC Group

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UKAS 5950 Crownhill, GB
BS 4553-1:1998 BS 4553-2:1998 BS 4553-3:1998 BS 5308-1: 1986 (withdrawn) BS 5308-2: 1986 (withdrawn) + 3 more
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BAU-ZERT e.V. Materialprüfinstitut Nord

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DAkkS D-PL-17407-01-00 Großburgwedel, DE
DIN EN 1766 DIN EN 12390-1 DIN EN 12390-2 DIN EN 12390-3 DIN EN 12390-5 + 3 more
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BAUER Analysis

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UKAS 7511 Brentwood, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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BCS Automotive Interface Solutions

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DAkkS D-PL-12028-01-00 Radolfzell am Bodensee, DE
IEC 61000-4-2: 2008 ISO 11452-2: 2019 ISO 11452-3 ISO 11452-4: 2020 ISO 11452-5: 2002 + 3 more
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BCS Automotive Interface Solutions Italy

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ACCREDIA 01346 Nichelino, IT
DIN EN 60068-2-78 DIN EN 60068-2-30 ISO 16750-2: 2012 DIN EN IEC 60068-2-38 DIN EN 60068-2-14 + 2 more
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BDA Surveying

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UKAS 2791 Oadby, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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BDA Surveying

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UKAS 0365 Oadby, GB
(HSG 264, 2012)
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BEKON Lärmschutz & Akustik

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DAkkS D-PL-20433-01-00 Augsburg, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3
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BESA Property Services

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UKAS 10646 Lincoln, GB
5 of HSG 227 (2004)) (HSG 264, 2012)
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BESB GmbH Berlin Schalltechnisches Büro

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DAkkS D-PL-19685-01-00 Berlin, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3
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BFSV Verpackungsinstitut Hamburg

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DAkkS D-PL-19253-01-00 Hamburg, DE
DIN 52186 ISO 21527-1 DIN EN ISO 527-3 IEC 61924-2 DIN EN 62233 + 3 more
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BIOKIM srl

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ACCREDIA 00740 Modena, IT
ISO 18787 DIN EN ISO 6888-1 UNI 10590 DIN EN 61442 DIN EN ISO 15587-1 + 3 more
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BIOQUALITA' SRL

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ACCREDIA 00518 Guarene, IT
0,2 0,003 bis 0,006 (HLA DQ8 (HLA DQB*03:02) ISO 18787 BS EN 15662 DIN EN ISO 6888-1 + 3 more
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BIOTECNAL

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ENAC LE582 Sant Quirze del Valles, ES
UNE-EN ISO 6579-1 UNE-EN ISO 6222 UNE-EN 26777 UNE-EN ISO 7027-1 en 31-7-79 (BOE 29-08-79) + 3 more
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BIOXAL

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COFRAC 1-7423 Chalon-Sur-Saône, FR
DIN EN 17387 DIN EN 13697
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BJL ENVIRONNEMENT

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COFRAC 1-6232 Nantes, FR
NF X 43-269 NF X 43-269 - Annexe K NF X43-050 (parties utiles de NF X 43-050 ISO 16000-7
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BJL Laboratoires

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COFRAC 1-0973 Sevres, FR
NF X 43-269 NF X 43-050 ISO 22262-1 NF X 43-269 - Annexe K NF X 43-298 + 3 more
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BLASY + MADER Gesellschaft

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DAkkS D-PL-18867-01-02 Eching am Ammersee, DE
ISO 10381-8 DIN ISO 10381-1 DIN ISO 10381-2 DIN ISO 10381-3 DIN ISO 10381-4 + 3 more
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BOC

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UKAS 0011 Guildford, GB
DIN EN ISO 18119 BS EN ISO 10460:2018 BS EN ISO 11623:2015 BS EN 15888:2014 BS EN 14876:2007/Internal proceduresDiss + 2 more
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BP Europa SE Aral Forschung

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DAkkS D-PL-19572-01-01 Bochum, DE
DIN EN ISO 6246 DIN 53160-1 DIN EN ISO 22854 (LBLS) (OMIM 611105) (c.228- DIN EN 13016-1 + 3 more
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BRE GLOBAL LIMITED Incorporating LPC Testing, BRE Testing

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UKAS 0578 Garston, GB
BS EN ISO 10140-2:2021 BS EN ISO 10140-3:2021 BS EN ISO 717-2:2020 ISO 7171 BS EN ISO140-3:1995 (withdrawn) + 3 more
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BROMATOS S.n.c. di Giuseppe Franzino & C.

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ACCREDIA 00662 Palermo, IT
DIN EN ISO 7730 ISO 5667-5 ISO 17604 DIN EN ISO 6888-1 ISO 8573-4 + 3 more
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BSI á Íslandi ehf

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UKAS 0823 Reykjavik 104, IS
Nominal value TEMPERATURE See Notes 1 to 3 TORQUE Case Manager: BC4 + 1 more
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BSRIA

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UKAS 1053 Bracknell, GB
ISO 11451-1 IEC 62442-1 DIN EN 16147 DIN EN 12101-3 DIN EN 14825 + 3 more
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Industries

Aerospace and defence engineering Automotive design and validation Civil engineering and bridge design Heavy machinery and equipment development Vibration and noise control consulting

Related Standards

  • ISO 7626-1 Vibration and shock—Experimental determination of mechanical mobility—Part 1: Basic definitions and transducers
  • ISO 7626-5 Vibration and shock—Experimental determination of mechanical mobility—Part 5: Coupling of mechanical mobility measurement instrumentation
  • ISO 6954 Mechanical vibration and shock—Acceleration transducers—Specifications for laboratory standard instruments

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