ISO INTERNATIONAL STANDARD 9175-1 First edition 1988-11-01 INTERNATIONALORGANIZATIONFOR STANDARDIZATION ORGANISATIONINTERNATIONALEDENORMALISATION MEKAYHAPOAHAAOPrAHM3ALMANOCTAHAAPTW3ALMM Tubular tips for hand-held technical pens using India ink on tracing paper Part 1: Definitions, dimensions, designation and marking Pointes tubulaires pour plumes tubulaires et instruments de dessin a main a encre de Chine, utilises surpapiercalque Partie1:Definitions,dimensions,designationetmarquage Reference number ISO 9175-1 : 1988 (E) ISO 9175-1 : 1988 (E) 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. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all mattersofelectrotechnicalstandardization. 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 least 75 % approval by the member bodies voting. International Standard ISO 9175-1 was prepared by Technical Committee iSO/TC 10, Technicaldrawings. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latestedition,unlessotherwisestated @ International Organization for Standardization, 1988 Printed in Switzerland ISO 9175-1 : 1988 (E) INTERNATIONALSTANDARD Tubular tips for hand-held technical pens using India ink on tracing paper Part 1: Definitions, dimensions, designation and marking Scope and field of application b) a freely movable wire within the tube for controlling the ink flow. This part of ISO 9175 specifies the dimensions for tubular tips for hand-held technical pens using India ink on tracing paper, irrespective of their design and manufacture, to ensure consis 3.2 tubular technical pen: Hand-held instrument utilizing tent line thickness within predetermined specifications, with or India ink and having as its distinguishing characteristics without lettering guides and templates. a) a tubular tip, It applies to commonly used draughting operations such as tracing, writing and lettering. b) a reservoir or cartridge, and c) an ink feed system, 2 References preferablyused fordrawing operations ISo 128, Technical drawings -- General principles of presen- tation. 3.3 reservoir: A fixed component consisting of a rigid or ISo 9175-2, Tubular tips for hand-held technical pens using semi-rigid structure to be filled with India ink. A reservoir is India ink on tracing paper Part 2:Performance, test intended to be refilled from a bulk supply. parameters and test conditions. 3.4 cartridge: Disposable container for the India ink supply, 3Definitions to be detached when empty and replaced by a new full con- tainer. For the purposes of this part of ISo 9175, the following defi- nitions apply. 3.5 ink feed system: Means of providing, under predeter- 3.1 tubular tip: Component of a tubular technical pen for mined ambient conditions, delivery of India ink from a supply tank to the tracing paper and having as its distinguishing characteristics a) a mark of constant line thickness, at predetermined line generation rates varying within given limits, and a) a stepped tube of specified length and diameter (see the figure), and b) protection against leakage of India ink. 1