ISO INTERNATIONAL STANDARD 9957-3 Firstedition 1997-11-01 Fluid draughting media Part 3: Water-based coloured draughting inks Requirements and test conditions Fluides adessins- Partie 3: Encres aqueuses colorées a dessin - Prescriptions et conditions d'essai This material is reproduced from IsO documents underInternational Organization for Standardization (Iso) Copyright, License number IHS/lCC/1996.Notforresale.NopartoftheseISodocumentsmaybe alowed in the copyright law of the country of use, or with the prior written consent of IsO (Case postale 56, 1211 Geneva 20, Switzerland, Fax +41 22 7341079),iHSortheISOLicensor'smembers. OS Reference number ISO 9957-3:1997(E) nternational Organization for Standardizatior Noreproductionor networking pemitedwithout licensefrom IHS Not for Resale ISO 9957-3:1997(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO memberbodies).The workof preparingInternationalStandardsisnormallycarriedout throughISOtechnica 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 Standard requires approval by at least 75 % of the member bodies casting a vote. definition and related documentation, Subcommittee Sc 9, Media and equipment for drawing and related documentation. IsO 9957 consists of the following parts, under the general titie Fluid draughting media: Part 1: Water-based India ink-Requirements and test conditions Part 2: Water-based non-India ink - Requirements and test conditions Part3:Water-based coloured draughting inks Annex A forms an integral part of this part of ISO 9957. @1SO1997 All rights reserved. Unless otherwise specified, no partof this publication may be reproduced or utilized in anyform orby any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Case Postale 56 : CH-1211 Geneve 20 · Switzerland Internet central@iso.ch X.400 C=ch; a=40Onet; p=iso; 0=isocs; s=central Printed in Switzerland = Not for Resale INTERNATIONAL STANDARD @ISO ISO 9957-3:1997(E) Fluid draughting media - Part 3: Water-based coloured draughting inks Requirements and test conditions 1 Scope This part of IsO 9957 specifies the requirements and test conditions for water-based coloured draughting inks intended for use in tubular technical pens. The pen and ink combinations are intended primarily to provide for coloured lines and filled areas on natural tracing paper conforming to IsO 9961 and other draughting media. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of IsO 9957.Atthetimeofpublication,theeditionsindicatedwerevalid.Allstandardsaresubjecttorevision,andpartiesto agreements based on this part of IsO 9957 are encouraged to investigate the possibility of appiying the most recent editions of the standards listed below. Members of IEC and ISO maintain registers of currently valid International Standards. IsO 105-B02:1994, Textiles -- Tests for colour fastness -- Part: Colour fastness to artificial light: Xenon arc fading lamptest. Iso 105-Jo3:1995, Textiles Test for colour fastness — Part J03: Calculation of colour differences. ISO 128-20:1996, Technical drawings -- General principles of presentation Part 20: Basic conventions for lines. ISO 554:1976, Standard atmospheres for conditioning and/or testing -- Specifications. dimensions, designation and marking. IsO 9175-2:1988, Tubular tips for hand-held technical pens using India ink on tracing paper- Part 2: Performance, test parameters and test conditions. IsO9177-2:1989,Mechanical pencils-Part2:Blackleads—Classification and dimensions. ISO g957-1:1992, Fluid