NF EN ISO 1172, T57-102 (09/2023)

This document specifies two calcination methods for determining the textile glass and mineral filler content of glass fiber reinforced plastics: — Method A: for determining the textile glass content in the absence of mineral fillers. — Method B: for the determination of the textile glass content and the mineral filler content in the presence of the two components. This document is applicable to the following types of materials: — prepregs based on yarn, roving, tape or fabric; — molding compositions: BMC, SMC, DMC; — molding compositions and granules of thermoplastics reinforced with textile glass; — laminates reinforced with woven or non-woven textile glass based on thermosetting or thermoplastic resins. The methods are not applicable to reinforced plastics of the following types: — those containing reinforcements other than textile glass; — those containing certain materials which do not decompose completely at the test temperature (e.g. those based on silicone resin); — those containing mineral fillers which degrade at a temperature below the minimum calcination temperature. NOTE For these materials, ISO 11667 can be used.
(Automatic translation from French)