ISO INTERNATIONAL STANDARD 4606 Second edition 1995-05-15 Textile glass - Woven fabric Determination of tensile breaking force and elongation at break by the strip method Verre textile -- Tissus --- Détermination de la force de rupture en traction et de I'allongement a la rupture par la méthode de la bande ISO Reference number ISO 4606:1995(E) No reproduction or networking permitted without license from IHS Not for Resale IS0 4606:1995(E) Foreword IsO (the International Organization for Standardization) is a worldwide of preparing International Standards is normally carried out through IsO which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International a vote. International Standard ISO 4606 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13, Composites and reinforce- mentfibres. This second edition cancels and replaces the first edition (IsO 4606:1979), of which it constitutes a technical revision. Annex A of this International Standard is for information only. CISO 1995 microfilm, without permission in writing from the publisher. International Organization for Standardization Case Postale 56 · CH-1211 Geneve 20 · Switzerland Printed in Switzerland Copyright International Organization for Standadization No reproduction or networking permitted without license from IHS Not for Resale INTERNATIONAL STANDARDISO ISO4606:1995(E) Textile glass Woven fabric -- Determination of tensile breaking force and elongation at break by the strip method 1 Scope fromniptonipofthejawsof theclampshoidingthe specimen, with the clamps in their starting position. This International Standard specifies a method for the determination of the tensile breaking force and elon- 3.2 breaking force: The maximum force applied to gation at break of frayed strips of woven textile glass a test specimen in stretching it to rupture. fabrics conditioned in a standard test atmosphere. 3.3 elongation; extension: The increase in length The method is applicable to unimpregnated textile of a specimen under tension, usually expressed as a glass fabrics and to textile glass fabrics that have percentage of the initial length. beenimpregnatedwithsizingorstiffeningmaterials, butnottofabricscoatedwithrubberorplastics(see 4Principle annexAforinformativereferences). 2 Normative references suitable mechanical apparatus which indicates the breakingforceandtheelongationat break.The The following standards contain provisions which, breaking force and the elongation at break may be through reference in this text, constitute provisions determinedeitherbytakingreadingsdirectlyfromthe of this International Standard. At the time of publi- indicating instruments on the apparatus or from an cation, the editions indicated were valid. All standards autographic force/extension curve. are subject to revision, and parties to agreements Provision is made for two different types of test basedonthisInternational Standardareencouraged to investigate the possibility of applying the most re- specimen: cent editions of the standards indicated below. Members of IEC and ISO maintain registers of cur- - Type I is intended for use with stiff fabrics (e.g. rentlyvalid International Standards. scrim fabrics made with coarse yarns, i.e. yarns with a linear density greater than or equal to ISO 139:1973, Textiles - Standard atmospheres for 300 tex, or fabrics in which the yarns are bonded conditioning and testing. to each other by a finish or stiffening). ISO 291:1977, Plastics - Standard atmospheres for Type Il is intended for more pliable fabrics, due to conditio