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
19 Countries

Showing 251–275 of 1,817 labs

DAkkS D-K-11075-08-00 Berlin, DE
Conformity assessment — requirements for Railway composite brake blocks — require 0,2 kN 0,4 kN 100 kN + 3 more
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DAkkS D-PL-11075-16-00 Berlin, DE
DIN EN ISO 945-1 ASTM E562 ASTM E1875 DIN EN 60068-2-64 DIN EN 60068-2-78 + 3 more
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DAkkS D-K-15013-01-00 Bergisch Gladbach, DE
Beschleunigung stoßförmig (sin 2 Impuls) > 1500 m/s Schwingungsaufnehmer
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DAkkS D-ML-13381-01-01 Berlin, DE
NRBC-Normoblasten Anteil unreifer Retikulozyten Erythrozyten DELTA-He Leukozyten + 3 more
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DAkkS D-ML-13381-01-00 Berlin, DE
Blutungszeit PFA ADP Blutungszeit PFA EPI PFA-P2Y Erythrozyten Hämatokrit + 3 more
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DAkkS D-ML-13381-02-00 Berlin, DE
Leukozyten Enteroaggregative E. coli Legionellen Staphylokokkus aureus Salmonellen + 3 more
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Bureau Cicero

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RvA I225 Houten, NL
# EN 116-97 NEN 4400-2 # ISO 13736 NEN 4400-1 #ISO 6618 + 1 more
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COFRAC 1-5812 Moulins, FR
DIN ISO 17289 DIN EN ISO 10523 DIN EN 27888 NF X 31-615 (Uniquement
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DAkkS D-PL-12024-03-02 Türkheim, DE
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
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DAkkS D-PL-12024-06-02 Nürnberg, DE
EN IEC 61000-4 DIN EN IEC 61000 VDE 0847-4 DIN EN 55016-2 DIN EN IEC 61000-6 + 3 more
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RvA L663 Eindhoven, NL
IEC 18045 IEC 15408-1
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DAkkS D-PL-18304-01-00 Bielefeld, DE
DIN EN ISO 898-1 DIN EN ISO 898-2 ISO 898-1 ISO 898-2 DIN EN ISO 6892-2 + 3 more
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UKAS 2361 Newtownabbey, GB
(HSG 248) – 2021 (PCM) based on HSG 248 SOP 5, based on HSG 248 SOP 4, based on HSG 248
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DAkkS D-K-20476-01-01 Dortmund, DE
/ Messgeräte Radiometrie 100 µW/cm² stärkemessgeräte UV-A 365nm Linearität der + 3 more
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DAkkS D-K-20113-01-00 Wuppertal, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) verwendete Abkürzungen:
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ACCREDIA 01402 Civitella in Valdichiana, IT
ETSI EN 301 489-1: V2.2.3 EN 61000-3-2 and EN 61000-3-3 IEC 61000-6-1 IEC 61000-4-4: 2012 1.4 Electrostatic Discharge EN 61000-4 + 3 more
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UKAS 0156 Congresbury, GB
(HSG 264, 2012) HSG 227 (2004)) Safety Executive guides HSG 264 (2012) and App 3 of HSG 227 (HSG 248) – 2021 + 3 more
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CAL

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DAkkS D-PL-14532-01-02 Darmstadt, 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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COFRAC 1-0793 Perpignan, FR
DIN EN ISO 17294-2 DIN EN ISO 14403-2 DIN EN ISO 13395 VDE 414-9-11 DIN EN ISO 10304-1 + 3 more
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ENAC LE1870 Rinconada, ES
ISO 2808 ISO 48-4 UNE-EN ISO 2808 ISO 2409 UNE-EN ISO 2360 + 3 more
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CARTESY

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DAkkS D-K-22378-01-01 Mühldorf a. Inn, DE
Tensile testing of metallic materials (I Vickers hardness test (ISO 6507) Kraft Railway vehicles — specific test require Railway — traction effort and braking fo + 3 more
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CATAS SpA

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ACCREDIA 00024 San Giovanni al Natisone, IT
ISO 9308-1 ISO 7899-2 DIN EN ISO 11205 DIN EN ISO 10304-1 ISO 14189 + 3 more
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ENAC LC10.234 Bollullos de la Mitación, ES
EURAMET cg-18 EURAMET cg-17 CEM Edición
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UKAS 0334 Glossop, GB
Circular tests for numerically Length measuring ANGLE
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COFRAC 1-0736 St Paul Lez Durance Cedex, FR
ASTM E181 – 17 ASTM E 1297
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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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