ISO 11667-1997 PDF

Full title and description

ISO 11667:1997 — Fibre-reinforced plastics — Moulding compounds and prepregs — Determination of resin, reinforced‑fibre and mineral‑filler content — Dissolution methods. This International Standard specifies chemical dissolution procedures to determine the proportions (by mass) of resin, reinforcing fibre and mineral filler in moulding compounds and prepregs, providing a repeatable laboratory method for material characterisation and quality control.

Abstract

ISO 11667:1997 defines one‑point laboratory dissolution methods for separating and quantifying the resin matrix, reinforced fibres and mineral fillers in composite moulding compounds and prepregs. The standard describes sample preparation, choice of solvents, dissolution procedure, filtration and drying, calculation of mass fractions and reporting requirements to ensure comparable results between laboratories and suppliers. The methods are applicable to typical thermosetting and thermoplastic resin systems used with glass, carbon and other reinforcement types in moulding compounds and prepregs.

General information

• Status: Published (confirmed).
• Publication date: December 1997.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 83.120 (Plastics and rubbers; fibre-reinforced plastics).
• Edition / version: Edition 1 (1997).
• Number of pages: 12 pages.

Scope

This standard gives procedures for the chemical dissolution of the resin component of composite moulding compounds and prepregs so that the remaining reinforced fibres and mineral fillers can be separated and weighed. It is intended for laboratory use to determine mass fractions of constituent components for quality control, material specification verification, product development and failure investigation. The methods assume representative sampling and are not intended for in‑field rapid testing.

Key topics and requirements

• Selection and preparation of representative samples from moulding compounds and prepregs.
• Choice of appropriate solvent(s) and conditions for dissolving the resin without attacking fibres or fillers.
• Dissolution procedures, filtration/decanting techniques, washing and drying of residue.
• Calculation of mass percentages of resin, fibre and mineral filler and presentation of results.
• Requirements for repeatability, reporting of test conditions and any observed deviations or uncertainties.

Typical use and users

Used primarily by materials laboratories, composite manufacturers, quality managers, R&D teams and failure‑analysis engineers to verify raw materials, incoming inspection, production control and to support product development. Laboratories performing regulatory or customer‑specified material characterisation will use these methods as part of their test suites.

Related standards

Related documents typically include other ISO standards and technical reports on composite testing and characterisation (for example standards on fibre content by ignition, mechanical testing of fibre‑reinforced plastics, and sample preparation methods), national standards that reference or adapt ISO test methods, and supplier specifications for prepregs and moulding compounds.

Keywords

fibre‑reinforced plastics, moulding compounds, prepregs, resin content, fibre content, mineral filler, dissolution method, chemical analysis, composite materials, material characterisation

FAQ

Q: What is this standard?

A: ISO 11667:1997 is an International Standard that specifies chemical dissolution methods to determine resin, reinforced‑fibre and mineral‑filler content in moulding compounds and prepregs.

Q: What does it cover?

A: It covers sample preparation, solvent selection, dissolution and separation procedures, filtration and drying of residues, calculations for mass fractions and reporting requirements for laboratory determination of constituent proportions.

Q: Who typically uses it?

A: Composite materials laboratories, manufacturers of moulding compounds and prepregs, quality assurance and R&D personnel, and engineers conducting material verification or failure analysis.

Q: Is it current or superseded?

A: The edition was published in December 1997. The standard record indicates it has been reviewed and its status as the 1997 edition remains published/confirmed. Consult the publisher for the very latest status before purchase or formal citation.

Q: Is it part of a series?

A: It sits within ISO technical work on fibre‑reinforced plastics and composites (work under ISO/TC 61 and its subcommittees) and is typically used alongside other ISO standards on composite testing and material characterisation.

Q: What are the key keywords?

A: Resin content, fibre content, filler content, dissolution, moulding compound, prepreg, composite analysis, laboratory method.