ISO INTERNATIONAL STANDARD 8206 First edition 1991-07-01 Acceptance tests for oxygen cutting machines --- Reproducible accuracy Operational characteristics Controle de reception des machines d'oxycoupage -- Precision de reproduction -- Caracteristiques de fonctionnement Reference number ISO 8206:1991(E) Copyright International Organization for Standardization Not for Resale ISO 8206:1991(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 normaliy 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 Electrotechnica! Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are bodies casting a vote. International Standard Iso 8206 was prepared by Technical Committee ISO/TC 44, Welding and allied processes. Annex A of this International Standard is for information only. C ISO 1991 or by, any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case Postale 56 ●CH-1211 Genéve 20 Switzerland Printed in Switzerland No reproduction or networking permitted without license from IHS Not for Resale INTERNATIONAL STANDARD ISO 8206:1991(E) Acceptance tests for oxygen cutting machines -- Reproducible accuracy --- Operational characteristics Scope 4 Principles of acceptance tests 1 This International Standard applies to stationary cross-carriage oxygen cutting machines for shape cutting and/or parallel trimming 4.1 Operating instructions it also applies to machines for cutting by other ther- The operating instructions for the oxygen cutting mal processes. machine shall be complied with. Before commencing the acceptance tests the con- 2 Purpose of acceptance tests trols, electronics, motors and gear mechanisms shall be operated at no-load to bring them to a The purpose of acceptance tests is the final in- temperature corresponding to working conditions spection of the completed oxygen cutting machine and the manufacturer's instructions. on the premises of the user. Acceptance tests are used solely to demonstrate the reproducible accu- racy and operational characteristics of the oxygen cutting machine, eliminating influences caused by the process. This International Standard is intended 4.2 Measuring instruments to be a basis for technical provisions of delivery. The tests are to be carried out with calibrated measuring instruments in accordance with the 3 Preconditions for acceptance tests measuring instructions given in this International Standard. 3.1 Setting up the oxygen cutting machine The limit of error of the measuring instruments shall Oxygen cutting machines are machine tools. At the not be more than 20 % of the permissible variation. place of installation, therefore, the same require- The errors in the measuring instruments and the ments as regards sensitivity to external influences tolerances for the measuring devices, e.g. set pins, shall be established as in the case of other machine steel wire and prism biocks are to be taken into ac- tools. count. Installation of the oxygen cutting machine outdoors, laying out the machine foundations in the vicinity of vibrating plant, and effects from electric 4.3 Measurements electromagnetic fields are to be avoided. Displace- ment or subsidence of the machine foundations The measuring instruments, measuring devices and shall be excluded. Exceptions shall be stipulated in oxygen cutting machine, with the exception of the agreement with the manufacturer parts referre