ISO INTERNATIONAL STANDARD 22609 First edition 2004-12-01 Clothing for protection against infectious agents Medical face masks Test method for resistance against penetration by synthetic blood (fixed volume, horizontally projected) Vetements de protection contre les agents infectieux Masques faciaux médicaux Methode d'essai de la résistance a la pénétration par un sang synthetique (volume fixe, projection horizontale) Reference number ISO 22609:2004(E) @ ISO 2004 Copyright International Organization for Standardization Not for Resale ISO 22609:2004(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below @ISO2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland yemainagazainandardizato @ISO2004-All rights reserved mittedwithoutlicense from IHS Not for Resale ISO 22609:2004(E) Contents Page Foreword Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Apparatus and materials . 5.1 Equipment. 5.2 Reagents .. 6 Specimens 1 Procedure... 7.1 Preparation and cleaning of test apparatus .... 7.2 Test procedure.... 7.3 Alternative test set-up using a targeting plate.... 8 Report... Annex A (informative) Parts list for test apparatus.. 11 Annex B (normative) Preparation of synthetic blood .. 12 Annex C (informative) Derivation of equations for stream velocity and time of delivery.. 13 Bibliography 17 Copyrght International Organizaion for standardizaon'ghts reserved ili se from IHS Not for Resale ISO 22609:2004(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 technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeer InternationalElectrotechnicalCommission(iEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. 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. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 22609 was prepared by Technical Committee ISO/TC 94, Personal safety - Protective clothing and equipment, Subcommittee SC 13, Protective clothing. It is based on AsTM F1862-00a[4]. ional OrganizationforStandardization ISO 2004 - All rights reserved ISO 22609:2004(E) Introduction Workers, primarily those in the health care profession, involved in treating and caring for individuals injured or sick, can be exposed to biological liquids capable of transmitting disease. These diseases, which may be caused by