This International Standard specifies two methods for the determination of the tensile stress at break of an impregnated roving:<\/p>\n
a reference method using test specimens produced with moulded epoxy tabs;<\/p>\n<\/li>\n
a short method using test specimens with no tabs or simple cardboard or composite tabs.<\/p>\n<\/li>\n<\/ul>\n
The methods are applicable to both assembled (multistrand) and direct (multifilament) rovings; nevertheless the reference method may be used for various linear densities, but the short method is described for 1 200 tex rovings only, which is the linear density that allows the fibres in the roving to spread out most easily during impregnation.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 5<\/td>\n | TitlePage – Textile glass\ufffd\u2014 Rovings\ufffd\u2014 Manufacture of test specimens and determination of tensile … <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | TableofContent – Contents Page <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | Foreword – Foreword <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | Scope – 1\ufffd\ufffd\ufffd Scope NormativeReference – 2\ufffd\ufffd\ufffd Normative references <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | Clause1 – 4\ufffd\ufffd\ufffd Principle Clause1 – 5\ufffd\ufffd\ufffd Sampling and conditioning <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | Clause1 – 6\ufffd\ufffd\ufffd Production of test specimens\ufffd\u2014 Reference method Subclause2 – 6.1\ufffd\ufffd\ufffd Apparatus UntitledSubclause3 – 6.1.1\ufffd\ufffd\ufffd Impregnation apparatus UntitledSubclause4 – 6.1.1.1\ufffd\ufffd\ufffd Reel UntitledSubclause4 – 6.1.1.2\ufffd\ufffd\ufffd Impregnation vat UntitledSubclause4 – 6.1.1.3\ufffd\ufffd\ufffd Stainless-steel die <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | UntitledSubclause4 – 6.1.1.4\ufffd\ufffd\ufffd Winding device (mechanical or manual) with former Subclause2 – 6.2\ufffd\ufffd\ufffd Preparation of test specimens Subclause3 – 6.2.1\ufffd\ufffd\ufffd Type and dimensions Subclause3 – 6.2.2\ufffd\ufffd\ufffd Number <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Subclause3 – 6.2.3\ufffd\ufffd\ufffd Impregnation procedure <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Subclause2 – 6.3\ufffd\ufffd\ufffd Moulding of tabs Subclause3 – 6.3.1\ufffd\ufffd\ufffd Fabrication of moulds UntitledSubclause4 – 6.3.1.1\ufffd\ufffd\ufffd Apparatus UntitledSubclause4 – 6.3.1.2\ufffd\ufffd\ufffd Procedure Subclause3 – 6.3.2\ufffd\ufffd\ufffd Casting the tabs UntitledSubclause4 – 6.3.2.1\ufffd\ufffd\ufffd Apparatus <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | UntitledSubclause4 – 6.3.2.2\ufffd\ufffd\ufffd Procedure <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Clause1 – 7\ufffd\ufffd\ufffd Production of test specimens\ufffd\u2014 Short method Subclause2 – 7.1\ufffd\ufffd\ufffd Apparatus UntitledSubclause3 – 7.1.1\ufffd\ufffd\ufffd Impregnation apparatus UntitledSubclause4 – 7.1.1.1\ufffd\ufffd\ufffd Tension-regulating system UntitledSubclause4 – 7.1.1.2\ufffd\ufffd\ufffd Impregnation vat UntitledSubclause4 – 7.1.1.3\ufffd\ufffd\ufffd Stainless-steel die <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | UntitledSubclause4 – 7.1.1.4\ufffd\ufffd\ufffd Winding device (mechanical or manual) with former Subclause2 – 7.2\ufffd\ufffd\ufffd Preparation of test specimens Subclause3 – 7.2.1\ufffd\ufffd\ufffd Type and dimensions Subclause3 – 7.2.2\ufffd\ufffd\ufffd Number Subclause3 – 7.2.3\ufffd\ufffd\ufffd Impregnation procedure <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Subclause2 – 7.3\ufffd\ufffd\ufffd Fitting of tabs Subclause3 – 7.3.1\ufffd\ufffd\ufffd Production of template Subclause3 – 7.3.2\ufffd\ufffd\ufffd Procedure Clause1 – 8\ufffd\ufffd\ufffd Tensile testing Subclause2 – 8.1\ufffd\ufffd\ufffd Apparatus UntitledSubclause3 – 8.1.1\ufffd\ufffd\ufffd Tensile-testing machine <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | UntitledSubclause3 – 8.1.2\ufffd\ufffd\ufffd Specimen-clamping devices <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | UntitledSubclause3 – 8.1.3\ufffd\ufffd\ufffd Extensometer <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Subclause2 – 8.2\ufffd\ufffd\ufffd Procedure UntitledSubclause3 – 8.2.1\ufffd\ufffd\ufffd Condition the test specimens for UntitledSubclause3 – 8.2.2\ufffd\ufffd\ufffd After the test, note the type of rupture as follows: Clause1 – 9\ufffd\ufffd\ufffd Expression of results Subclause2 – 9.1\ufffd\ufffd\ufffd General Subclause2 – 9.2\ufffd\ufffd\ufffd Breaking stress <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Subclause2 – 9.3\ufffd\ufffd\ufffd Modulus of elasticity in tension Clause1 – 10\ufffd\ufffd\ufffd Test report <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | AnnexInformative – Precision statement <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Bibliography – Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Textile glass. Rovings. Manufacture of test specimens and determination of tensile strength of impregnated rovings<\/b><\/p>\n |