ISO 10112-1991 PDF

Full title and description

ISO 10112:1991 — Damping materials — Graphical presentation of the complex modulus. This international standard gives preferred parameters, symbols and definitions for presenting the complex (storage/loss) modulus of damping materials; the described modulus may be the shear modulus, Young’s modulus, bulk modulus, longitudinal wave propagation modulus or Lamé modulus. Annex A is informational.

Abstract

Specifies a recommended graphical presentation (parameters, symbols and definitions) for the complex modulus of damping materials so that results are consistently reported and interpreted across laboratories and publications. The document is concise (informative annex only) and intended to standardize plot conventions and terminology.

General information

• Status: Published — international standard (confirmed in periodic review, most recently confirmed in 2023).
• Publication date: 1991 (edition 1, published September/October 1991).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 17.160 (Vibrations, shock and vibration measurements).
• Edition / version: Edition 1 (1991).
• Number of pages: 9 pages (short technical document).

Scope

Provides guidance on the graphical presentation of the complex modulus for damping materials: which parameters and symbols to use, how to label plots and axes, and which modulus definitions are covered (shear, Young’s, bulk, longitudinal, Lamé). The standard is intended to harmonize presentation and terminology used in test reports and publications dealing with viscoelastic/damping properties.

Key topics and requirements

• Preferred parameters and symbols for complex modulus representation (storage and loss components, magnitude, loss factor/tanδ).
• Applicability to multiple modulus definitions: shear, Young’s, bulk, longitudinal wave-propagation and Lamé moduli.
• Recommended conventions for axis labeling, units and plot formats to aid comparability.
• Informative annex (Annex A) offering examples or explanatory material.

Typical use and users

Used by materials scientists and engineers, vibration and acoustics specialists, test laboratories performing dynamic mechanical analysis or damping measurements, manufacturers of damping/viscoelastic materials and components, and authors preparing technical reports or papers where standardised plots improve comparability. The standard was developed under ISO/TC 108 (mechanical vibration, shock and condition monitoring).

Related standards

Standards covering dynamic mechanical testing, DMA methods and vibration measurement are commonly referenced alongside ISO 10112. Relevant documents include the ISO 6721 series (Plastics — Determination of dynamic mechanical properties) and various ASTM DMA standards (e.g., ASTM D4065), which define measurement methods and test procedures that produce the modulus data plotted according to ISO 10112 conventions.

Keywords

damping materials, complex modulus, storage modulus, loss modulus, loss factor, tan delta, graphical presentation, modulus symbols, dynamic mechanical analysis, DMA, ISO 10112:1991.

FAQ

Q: What is this standard?

A: ISO 10112:1991 is an ISO international standard that sets out preferred parameters, symbols and definitions for the graphical presentation of the complex modulus of damping materials.

Q: What does it cover?

A: It covers how to present complex-modulus data (storage/loss components, magnitude, loss factor/tanδ) on plots, including recommended symbols, axis labels and units; it applies to several modulus definitions (shear, Young’s, bulk, longitudinal, Lamé) and includes an informational annex.

Q: Who typically uses it?

A: Materials engineers, vibration/acoustics specialists, testing laboratories, manufacturers of damping materials and researchers preparing reports or publications that include complex-modulus plots.

Q: Is it current or superseded?

A: ISO 10112:1991 remains a published ISO international standard and was confirmed in the periodic review process (most recently confirmed in 2023), so it is considered current in its confirmed form.

Q: Is it part of a series?

A: ISO 10112 is a focused document on graphical presentation and is commonly used alongside measurement-method standards (for example the ISO 6721 series for dynamic mechanical properties); it is not itself a multi‑part series but complements related test-method standards.

Q: What are the key keywords?

A: Complex modulus, storage modulus, loss modulus, loss factor, tan delta, damping materials, graphical presentation, modulus symbols.