ISO INTERNATIONAL STANDARD 9958-1 First edition 1992-11-01 Draughting media for technical drawings Draughtingfilm withpolyesterbase Part 1: Requirements and marking Supports de tracage pour dessins techniques -.- Films a dessin a base depolyester Partie 1:Caracteristiques et marquage Referencenumber ISO9958-1:1992(E) ISO 9958-1:1992(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies).The work of preparing Internationat Standards is normally carried out through isO technical committees.Each memberbody 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,alsotake part in the work.Isocollaborates closely with the International Electrotechnical Commission (IEC)onall matters ofelectrotechnical standardization Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inter- national Standard requires approval by at ieast75% of the member bodies casting a vote. InternationalStandardIsO9958-1waspreparedbyTechnicalCommittee iso/TC10,Technicaldrawings,productdefinition and related documen- tation,Sub-Committee Sc 9,Mediaand equipment for drawing and re- lateddocumentation Iso 9958consists of thefollowing parts,under the general titile Draughting media for technical drawings --- Draughting film with poly- esterbase: --Part 1:Requirements and marking --- Part2:Determination ofproperties Annexes A and B of this part of Iso 9958 are for information only ISO1992 or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standarcization CasePostale56·CH-1211Geneve20·Switzerland Printed in Switzeriand ii INTERNATIONALSTANDARD ISO 9958-1:1992(E) Draughting media for technical drawings --- Draughting film with polyester base -- Part 1: Requirements and marking Scope Iso9958-2:1992,Draughting media for technical 1 drawings --- Draughting film withpolyesterbase This part of iso 9958 specifies the requirements for Part 2:Determinationofproperties. draughting film with a biaxially oriented polyethyl- ene terephthalate base (commonly known as a polyester base) used as a medium for drawn and 3 Definitions written information which it is possible to duplicate. revise and store. For the purposes of this part of iso 9958, the foltow- In addition,this part of Iso 9958 specifies the con- ing definitions apply tents of the label to be affixed on the outside of the 3.1 draughting film: A film for drawn and written draughting film package, and gives an example of the product information which may be prepared by information with either chemically or mechanically the manufacturer or retailer of the draughting film. produced drawing surfaces on one or both sides. 3.2 total thickness of the draughting film: The 2 Normative references thickness of the draughting film. measured in ac- cordancewithISO4593 The following standards contain provisions which. through reference in this text, constitute provisions 3.3 base film; raw film:Biaxially oriented film made of this part of Iso 9958.At the time of publication. of polyethylene terephthalate (a polymer of poiy- the editions indicated were valid. All standards are ester type) without any coating(s). subject to revision,and parties to agreements based onthispartofisO9958areencouragedtoinvesti- 3.4base filmthickness:The thickness of the base gate the possibility of applying the most recent edi- film,measured in accordance with iso 4593. tions of the standards indicated below.Members of IEc and Iso maintain registers of currently valid 3.5 drawing layer:A coaling on the base film International Standards. mainly composed of binder substances containing Iso 4593:--),Plastics--. Film and sheeting -- Det