This document specifies a method for the determination of the mass per unit area. It also specifies five methods (Method A to Method E) for the determination of the fibre mass per unit area of moulding compounds and prepregs. The five methods are as follows:<\/p>\n
Method A: Extraction by Soxhlet;<\/p>\n<\/li>\n
Method B: Extraction by immersion in solvent in a beaker;<\/p>\n<\/li>\n
Method C: Decomposition by loss ignition;<\/p>\n<\/li>\n
Method D: Extraction by wet combustion;<\/p>\n<\/li>\n
Method E: Method by calculation.<\/p>\n<\/li>\n<\/ul>\n
This document is applicable to the following types of materials:<\/p>\n
moulding compound and preimpregnated unidirectional sheet, tape, fabric and mats;<\/p>\n<\/li>\n
prepregs in which any type of reinforcement (aramid, carbon, glass, etc.) and any type of matrix (thermosetting or thermoplastic) has been used.<\/p>\n<\/li>\n<\/ul>\n
Typically, reinforcement fibres are coated with sizing or finishes. These normally dissolve with the resin and are, therefore, included in the resin content.<\/p>\n
This document is not applicable to the following types of prepregs:<\/p>\n
those containing reinforcements which are soluble (or partly soluble) in the solvents used to dissolve the resin.<\/p>\n<\/li>\n<\/ul>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 4 Principle 4.1 Determination of mass per unit area 4.2 Determination of fibre mass per unit area 4.2.1 Method A: Extraction in Soxhlet-type apparatus 4.2.2 Method B: Extraction by immersion in solvent in a beaker 4.2.3 Method C: Decomposition by loss on ignition 4.2.4 Method D: Extraction by wet combustion 4.2.5 Method E: Method by calculation <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 5 Apparatus and reagents 5.1 General 5.2 For Method A 5.3 For Method B <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 5.4 For Method C 5.5 For Method D 6 Conditioning and testing 6.1 Conditioning 6.1.1 Materials for which no conditioning is required <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 6.1.2 Conditioning of material stored at ambient temperature 6.1.3 Conditioning of material stored at below ambient temperature 6.2 Testing 6.2.1 Test atmosphere 6.2.2 Time interval between conditioning and testing 7 Test specimens 7.1 Shape and dimensions <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 7.2 Number 7.3 Preparation <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 8 Procedure 8.1 Determination of mass per unit area 8.1.1 Materials made without using a solvent 8.1.2 Materials made using a solvent <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 8.2 Determination of fibre mass per unit area 8.2.1 Method A: Extraction in Soxhlet-type apparatus 8.2.2 Method B: Extraction by immersion in solvent 8.2.3 Method C: Decomposition by loss on ignition <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 8.2.4 Method D: Extraction by wet combustion <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 8.2.5 Method E: Method by calculation 9 Expression of results 9.1 Mass per unit area 9.1.1 Materials made without using a solvent 9.1.2 Materials made using a solvent <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 9.2 Fibre mass per unit area 9.2.1 Method A: Extraction in Soxhlet-type apparatus 9.2.2 Method B: Extraction by immersion in solvent 9.2.3 Method C: Extraction by decomposition by loss on ignition <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 9.2.4 Method D: Extraction by wet combustion 9.2.5 Method E: Method by calculation 10 Precision 10.1 Mass per unit area 10.2 Fibre mass per unit area <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 11 Test report <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Fibre-reinforced plastics. Moulding compounds and prepregs. Determination of mass per unit area and fibre mass per unit area<\/b><\/p>\n |