BS ISO 1172:1996 -Textile-glass-reinforced plastics - Prepregs, moulding compounds and laminates - Determination of the textile-glass and mineralfiller content - Calcination methods
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This International Standard specifies two calcination methods for the determination of the textile-glass and mineralfilier 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 International Standard 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 are not applicable 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 temperatute.
For these materials, ISO 1 1667, Fibre-reinforced plastics - Maulding compounds and prepregs - Determination
of resin, reinforcement-fibre and mineral-filler content - Dissolution method, may be used.
BS ISO 1172:1996 -Textile-glass-reinforced plastics - Prepregs, moulding compounds and laminates - Determination of the textile-glass and mineralfiller content - Calcination methods
