ISO 22821:2021 PDF

Carbon-fibre-reinforced composites — Determination of fibre weight content by thermogravimetry (TG)

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Title (English):

ISO 22821:2021

Carbon-fibre-reinforced composites — Determination of fibre weight content by thermogravimetry (TG)

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 10
Publication date:: January 8, 2021
Edition:: ISO IS 22821 edition 1 version 1
ICS:: 83.120

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Description (English):

This document specifies a thermogravimetric method for the determination of fibre weight content by weight percent, of carbon fibre reinforced composites. This method applies to pre-products, such as, prepregs, parts and products of carbon fibre reinforced composites.

Technical details

Technical committee: ISO/TC 61/SC 13 - Composites and reinforcement fibres
SKU: ISO 22821:2021

Abstract

Overview

ISO 22821:2021 specifies a thermogravimetric (TG/TGA) method for determining fibre weight content (weight %) in carbon‑fibre‑reinforced composites (CFRP). The method applies to prepregs, parts and finished products and uses a thermogravimetric analyser to remove the polymer matrix by controlled heating in inert and oxidizing atmospheres. Compared with older combustion/acid techniques, TG offers improved safety and reduced reagent waste.

Key topics and technical requirements

Principle: measure mass loss as a function of temperature (thermogram) and its derivative (dm/dT) to distinguish resin pyrolysis from carbon fibre combustion.
Sample preparation: test specimens of about 10 mg ± 2 mg, thickness

Related standards

Other ISO standards

Overview

Key topics and technical requirements

Principle: measure mass loss as a function of temperature (thermogram) and its derivative (dm/dT) to distinguish resin pyrolysis from carbon fibre combustion.
Sample preparation: test specimens of about 10 mg ± 2 mg, thickness

ISO 22821:2021 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

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Abstract

Overview

Key topics and technical requirements

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