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
1,591 Accredited labs
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ITS Testing Services (UK)

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UKAS 1158 Chester, GB
UK 3725 based on ASTM D2163 and BS EN 15984:2011-07 IP 411, ISO 6251 ASTM D6667 mod ISO 8973 modified + 3 more
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IWS Institut für Werkstoffkunde und Schweißtechnik

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DAkkS D-PL-11283-01-01 Seevetal, DE
ISO 6508-1 Charpy impact test (ISO 148-1) Tensile testing of metallic materials (I BS EN ISO 9015-2 BS EN ISO 9016:2022 + 3 more
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IBL

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DAkkS D-PL-12001-02-04 Ottobrunn, DE
DIN EN ISO 6506-1 ASTM E 10 DIN EN ISO 6507-1 ASTM E 384 DIN EN ISO 6508-1 + 3 more
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Industrieanlagen- Betriebsgesellschaft mit beschränkter Haftung Kalibrierlabor

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DAkkS D-K-12001-01-01 Ottobrunn, DE
- Gleichstromwiderstand / Messgeräte Quellen >100 Ω > 10 kΩ + 3 more
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Industrieanlagen- Betriebsgesellschaft mit beschränkter Haftung Prüflabor für Qualifikationstests des Raumfahrt-Testzentrums

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DAkkS D-PL-12001-01-00 Ottobrunn, DE
DIN EN 10228-2 IEC 61000-6-2: 2005 IEC 61000-6-1 IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 + 3 more
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InfraServ GmbH & Co. Wiesbaden KG Abteilung Immissionsschutz

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DIN EN ISO 9614-3 DIN EN ISO 11200 DIN EN ISO 11202 DIN EN ISO 11203 DIN EN ISO 11205 + 3 more
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Infraserv GmbH & Co. Höchst KG Segment Site Services, Abteilungen Gewässerschutz, Immissionsschutz, Umwelt- und Prozessanalytik und Gefahrstoffe/Messstelle

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DAkkS D-PL-14332-01-01 Frankfurt am Main, DE
DIN 38402-A 11 DIN 38402-A 12 DIN 38402-A 13 DIN ISO 5667-5 (A 14) DIN EN ISO 5667-6 (A 15) + 3 more
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Ingenieurbüro g o e b e l

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DIN 56912 DIN EN 12198-1 DIN EN 12198-2 DIN EN 12198-3 DIN EN 60825-1 + 3 more
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Ingenieurgesellschaft Holzberg und Riehemann

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ISO 17987-6 ISO 17987-7 ISO 16845
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Inspectas Compliance

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UKAS 8401 Drighlington, GB
Appendix 5 of HSG 227 (2004))
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Institut Français Textile Habillement – IFTH – Rhône Alpes

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COFRAC 1-0101 Ecully Cedex, FR
DIN EN ISO 14419 DIN EN ISO 14045 DIN EN ISO 3071 DIN EN ISO 13934-1 NF EN 14325 (2004) – norme annulée + 3 more
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IGOS

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DAkkS D-PL-11282-01-00 Solingen, DE
ASTM B 117 ASTM B 368 ASTM G 85 DIN 8237 DIN 50014 + 3 more
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Institut für Hygiene und Umwelt

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DAkkS D-PL-14095-03-02 Hamburg, DE
DIN 38402-A 12 DIN ISO 5667-5 (A 14) DIN EN ISO 5667-6 (A 15) DIN EN ISO 19458 (K 19) DIN 19643-1 + 3 more
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Institut für Klinische Transfusionsmedizin und Immungenetik Ulm gemeinnützige

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DAkkS D-ML-17347-01-00 Ulm, DE
Basophile Granulozyten Eosinophile Granulozyten Erythrozyten Lymphozyten Leukozyten + 3 more
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Institut für Lackprüfung Andreas Keiner

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DAkkS D-PL-19060-01-01 Wettenberg, DE
ISO 2178 ISO 4892-2: 2013-03 UNE-EN ISO 11998 BS EN ISO 16474-3:2021 ISO 6270-1 + 3 more
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Institut für Mikrobiologie der Bundeswehr Zentralbereich Diagnostik

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Bacillus anthracis Antikörper Direkter Coombstest polyvalent Brucella spp. IgG, IgM Antikörper Francisella tularensis-Antikörper polyvalent, IgG, IgM + 3 more
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CalTeC

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DAkkS D-K-18657-01-01 Emmerthal, DE
Kurzschlussstrom 0,5 mA 0,1 V Füllfaktor Solarzellen* 25 % 0,01 mW THD U 0,1 % + 3 more
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Institute for International Product Safety

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DAkkS D-PL-19125-01-00 Bonn, DE
DIN EN IEC 60255-1 VDE 0435-300 DIN EN 60255-151 VDE 0435-3151 IEC 60255-151 + 3 more
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Intek

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ACCREDIA 00855 Rezzato, IT
DIN EN 60068-2-30 IEC 62080 IEC 61000-6-1 IEC 61000-6-2: 2005 DIN EN 61010-1 + 3 more
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Intercable Automotive Solutions Srl Brunico

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ACCREDIA 02096 Brunico, IT
DIN EN 60068-2-30 IEC 60512-3-1 BS ISO 9227:2022 DIN EN 60068-2-78 DIN EN 13018 + 3 more
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Intertek Caleb Brett GERMANY

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DAkkS D-PL-11307-01-00 Hamburg, DE
DIN EN ISO 12185 ASTM D 4052 DIN EN ISO 3405 ASTM D 86 DIN EN 13016-1 + 3 more
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Intertek Consumer Goods

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DAkkS D-PL-14184-01-02 Fürth, DE
IEC 62321-2 DIN EN 61340-4-4 DIN EN 12472 DIN EN 16711-1 DIN EN 1264-5 + 3 more
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Intertek Deutschland

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DAkkS D-PL-12085-01-01 Kaufbeuren, DE
IEC 61000-3-2: 2014 IEC 61000-3-3 IEC 61000-3-11: 2017 IEC 61000-3-12: 2011 IEC 61000-4-2: 2008 + 3 more
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Intertek Polychemlab

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RvA L377 Geleen, NL
DIN EN ISO 10675-1 DIN EN ISO 19458 DIN EN ISO 179-1 NEN 6953 DIN EN ISO 10675-2 + 3 more
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Intertek Testing & Certification

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UKAS 0029 Brentwood, GB
IEC 60079-7 IEC 60730-2-2: 2005 DIN EN 60730-1: 2017 DIN EN IEC 60730-2-22 IEC 60079-0 + 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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