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 976–1,000 of 1,817 labs

Landesanstalt für Umwelt Baden-Württemberg

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DAkkS D-PL-14419-01-00 Karlsruhe, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3 DIN EN 14662-3 DIN EN 14211 + 3 more
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Landeslabor Schleswig-Holstein Lebensmittel-, Veterinär- und Umweltuntersuchungsamt

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DAkkS D-PL-18547-02-03 Neumünster, DE
DIN EN 16174 DIN CEN ISO/TS 16179 DIN EN 15933 DIN ISO 15178 DIN EN 15936 + 3 more
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Landesuntersuchungsanstalt für das Gesundheits- und Veterinärwesen Sachsen

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DAkkS D-ML-18515-01-00 Dresden, DE
GPT GOT GGT Salmonellen Shigellen + 3 more
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Leadec BV &

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DAkkS D-K-21171-01-01 Chemnitz, DE
Gleichspannung 33 mV Messgeräte 0,33 V 330 V Gleichstromstärke 33 µA Messgeräte 0,33 mA + 3 more
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Leftfield Environmental

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UKAS 6998 Port Talbot, GB
(HSG 264, 2012)
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Leftfield Environmental

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UKAS 4707 Port Talbot, GB
(HSG 248) – 2021 LSOP6 based on HSG 248 (PCM) based on HSG 248
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Lehren- und Meßgerätewerk Schmalkalden GmbH LMW-Kalibrierservice

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DAkkS D-K-21443-01-00 Schmalkalden, DE
(ein- und mehrgängige zylindrische Außen- und symmetrischem und unsymmetrischem Profil) Außengewinde + 3 more
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Leibniz-Institut für Werkstofforientierte Technologien - IWT Amtliche Materialprüfungsanstalt der Freien Hansestadt Bremen

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DAkkS D-PL-11240-01-01 Bremen, DE
DIN EN 60601-2-4 IEC 60512-4-1 DIN EN 124-2 IEC 60512-4-3 DIN EN 60601-2-44 + 3 more
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Leonardo UK

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UKAS 0461 Crewe Toll, GB
IEC 60068-2-2 IEC 60068-2-61 IEC 60068-2-1 MIL-STD-810B, 501 MIL-STD-810C, 501.1 + 3 more
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Les Préleveurs Indépendants

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COFRAC 1-5749 Aspach-Le-Bas, FR
DIN ISO 17289 ISO 5667-9 (hors échant. DIN EN ISO 7027-2 NF X 31-615 (Uniquement DIN EN ISO 10523 + 3 more
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Life Environmental Services

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UKAS 0610 Bishop's Stortford, GB
(HSG 248) – 2021 QSOP 01 based on HSG 248 (PCM) based on HSG 248 QSOP 03 based on HSG 248
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Life Environmental Services

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UKAS 0340 Bishop's Stortford, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004)
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Limbach Nord GmbH MVZ Labor Limbach Lehrte

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DAkkS D-ML-21457-02-00 Lehrte, DE
Aluminium Blei Eisen, Kupfer Ampicillin Cefepim + 3 more
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Linde GmbH Linde Gas Deutschland

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DAkkS D-K-21622-01-00 Unterschleißheim, DE
anteile Kohlenstoffmonoxid Kohlenstoffdioxid Methan Ethan + 3 more
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Linsch Consultants

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UKAS 2432 Newport, GB
(HSG 248) – 2021 staining based on HSG 248
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Liverpool University Hospitals NHS Foundation Trust

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UKAS 9656 70 Pembroke Place, GB
accordance with (EN ISO 14644- BS EN ISO 14644-1:2015
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Logical Compliance

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UKAS 29622 Chelmsford, GB
(HSG 264, 2012)
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London Borough of Enfield

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UKAS 1119 Enfield, GB
staining based on HSG 248 (HSG 248) – 2021 (PCM) based on HSG 248
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London Laboratories

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UKAS 9681 Hextable, GB
(HSG 248) – 2021 ASB04 based on HSG 248 (PCM) based on HSG 248
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Lucideon

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UKAS 0013 Stone, GB
DIN EN 772-13 DIN EN 1052-2 DIN EN 772-20 DIN EN 772-14 DIN EN 1052-4 + 3 more
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Lucion Services

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UKAS 2569 Gateshead, GB
staining based on HSG 248 (HSG 248) – 2021 (PCM) based on HSG 248 3492, ISO14966 and HSG 248 DIN EN 14629 + 3 more
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Ludwig Schneider Messtechnik

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DAkkS D-K-15223-01-00 Wertheim, DE
Taupunkttemperatur Fixpunktzellen *) thermometer (SPRT) *) meter, direkt anzeigende thermometer und + 3 more
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Ludwig-Maximilians-Universität München Max von Pettenkofer-Institut Lehrstuhl für Medizinische Mikrobiologie und Krankenhaushygiene

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DAkkS D-ML-14413-03-01 München, DE
Cryptococcus neoformans Cardiolipin AK Escherichia coli K1-AG Haemophilus influenzae Metromec Software AG + 3 more
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Ludwig-Maximilians-Universität München Max-von-Pettenkofer-Institut, Lehrstuhl Virologie

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DAkkS D-ML-14413-01-01 München, DE
Gesamt IgG Albumin Treponema pallidum (Lues) Thrombozytäre Antikörper Treponema pallidum (Lues + 3 more
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M E Broadstone Limited

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UKAS 0227 Poole, GB
Plain ring gauges (taper) Plain gap gauges (parallel) Plain plug gauges (taper) LENGTH ANGLE + 3 more
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Industries

Aerospace and aviation Automotive and rail vehicles Civil engineering and structures Mechanical equipment manufacturing Wind energy systems

Related Standards

  • ISO 7626-1 Vibration and shock — experimental modal analysis — Part 1: fundamentals and overview
  • ISO 7626-2 Vibration and shock — experimental modal analysis — Part 2: instrumentation for impact excitation
  • ISO 9614-1 Acoustics — determination of sound power levels of noise sources using sound intensity — Part 1: measurement at discrete points

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