ISO 1172:2023

Textile-glass-reinforced plastics — Prepregs, moulding compounds and laminates — Determination of the textile-glass and mineral-filler content using calcination methods

This document specifies two calcination methods for the determination of the textile glass and mineral filler content of glass-reinforced plastics:

—???? Method?A: for the determination of the textile glass content when no mineral fillers are present.

—???? Method?B: for the determination of the textile-glass and mineral-filler content when both components are present.

This document is applicable to the following types of material:

—???? prepregs made from yarns, rovings, tapes or fabrics;

—???? SMC, BMC and DMC moulding compounds;

—???? textile-glass-reinforced thermoplastic moulding materials and granules;

—???? filled or unfilled textile-glass laminates made with thermosetting or thermoplastic resins.

The methods do not apply to the following types of reinforced plastic:

—???? those containing reinforcements other than textile glass;

—???? those containing materials which do not completely burn off at the test temperature (for example, those based on silicone resin);

—???? those containing mineral fillers which degrade at temperatures below the minimum calcination temperature.

Edition	2023
Published Date	2023
Published By	International Standardization Organisation
Page Count	9