7246 (ISO International Standard Pipes and fittings of acrylonitrile/styrene/acrylester (ASA) --- General specification for moulding and extrusion materials Tubes et raccords en acrylonitrile/styrene/ester acrylique (ASA) -- Spécifications génerales de la matiere pour.le moulage et I'extrusion First edition 1984-11-15 UDC 621.643.29 : 621.643.4 : 678.745.32-139 Ref. No. 1SO 7246-1984 (E) 1984 Descriptors : piping, pipe fittings, plastic tubes, designation, characteristics. 7246-1 pyright International Organization for Standardization Price based on 3 pages without license from IHS Not for Resale Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern mental and non-governmental, in liaison with Iso, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. They are approved in accordance with isO procedures requiring at Plastics pipes, fittings and valves for the transport of fluids. International Organization for Standardization, 1984 Printed in Switzerland working permitted without license from IHS Not for Resale ISO 7246-1984 (E) INTERNATIONAL STANDARD Pipes and fittings of acrylonitrile/styrene/acrylester (ASA) General specification for moulding and extrusion materials Introduction References 0 In Technical Committee ISO/TC 138, the work on standardiz- ISo -178, Plastics - Determination of flexural properties of ation of plastics pipes and fittings for the transport of fluids is rigid plastics. split 'up with respect to the field of application for which the pipes and fittings are intended. Inherent in this is the risk of lack iso 179, Plastics - Determination of Charpy impact strength of coordination between the standards proposed by the dif-. of rigid materials. ferent sub-committees: The system of designation used closely follows that of TC 61, Plastics. Iso 180, Plastics - Determination of Izod impact strength of rigid materials. overall viewofcharacteristicstobeconsideredwhenwritingor Iso 291, Plastics - Standard atmospheres for conditioning revising. standards. Some of these characteristics may be more and testing. important to certain applications than to others. Similarly, there may be applications for which stricter re- IsO 306,Plastics Determination of the Vicat softening quirements are necessary. This has led to the principle of the temperature of thermoplastics. present document in which a list of characteristics and the rel- evant test methods for acrylonitrile/styrene/acrylester (ASA) ISO 1133, Plastics -- Determination of the melt flow rate of materials suitable for the manufacture of pipes and fittings are thermoplastics. given and in which the requirements for those characteristics may differ according to the proposed application of the pipes Iso 2557/2, Plastics - Amorphous thermoplastic. moulding and fittings. materials - Preparation of test specimens with a defined level Part 2 : Test specimens in the form of rec- of shrinkage - tangular plates (lnjection moulding). Scope and field of application 1 ISO 2580/1, Plastics -- Acrylonitrile-butadiene-styrene (ABS) This International Standard establishes a general specification moulding and extrusion materials - Part 1 : Designation. for acrylonitrile/styrene (or substituted styrene)/acrylester for pipes and fittings. ISO 2580/2, Plastics - Acrylonitrile-butadiene-styrene (ABS) The values given shall not be used for design purposes. moulding and extrusion materials --- Part 2 : Determination of properties. This International Standard do