Isa5[1].1 Instrumentation Symbols and Identification
STANDARD
ISA-5.1-1984 (R1992)
Formerly ANSI/ISA-5.1-1984 (R1992)
Instrumentation Symbols and Identification
NOTICE OF COPYRIGHT
This is a copyrighted document and may not be copied or distributed in any form or manner without the permission of ISA. This copy of the document was made for the sole use of the person to whom ISA provided it and is subject to the restrictions stated in ISA’s license to that person. It may not be provided to any other person in print, electronic, or any other form. Violations of ISA’s copyright will be prosecuted to the fullest extent of the law and may result in substantial civil and criminal penalties.
Reaffirmed 13 July 1992
TM
ISA–The Instrumentation, Systems, and Automation Society
ISA-5.1-1984 (R1992), Instrumentation Symbols and Identification ISBN 0-87664-844-8 Copyright ã 1984 by the Instrument Society of America. All rights reserved. Printed in the United States of America. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), without the prior written permission of the publisher. ISA 67 Alexander Drive P.O. Box 12277 Research Triangle Park, North Carolina 27709
Preface
This preface is included for information and is not a part of ISA-5.1-1984 (R1992). This standard has been prepared as part of the service of ISA toward a goal of uniformity in the field of instrumentation. To be of real value, this document should not be static, but should be subject to periodic review. Toward this end, the Society welcomes all comments and criticisms, and asks that they be addressed to the Secretary, Standards and Practices Board, ISA, 67 Alexander Drive, P.O. Box 12277, Research Triangle Park, NC 27709, Telephone (919) 5498411, e-mail: standards@isa.org. The ISA Standards and Practices Department is aware of the growing need for attention to the metric system of units in general, and the International
ISA-5.1-1984 (R1992)
Formerly ANSI/ISA-5.1-1984 (R1992)
Instrumentation Symbols and Identification
NOTICE OF COPYRIGHT
This is a copyrighted document and may not be copied or distributed in any form or manner without the permission of ISA. This copy of the document was made for the sole use of the person to whom ISA provided it and is subject to the restrictions stated in ISA’s license to that person. It may not be provided to any other person in print, electronic, or any other form. Violations of ISA’s copyright will be prosecuted to the fullest extent of the law and may result in substantial civil and criminal penalties.
Reaffirmed 13 July 1992
TM
ISA–The Instrumentation, Systems, and Automation Society
ISA-5.1-1984 (R1992), Instrumentation Symbols and Identification ISBN 0-87664-844-8 Copyright ã 1984 by the Instrument Society of America. All rights reserved. Printed in the United States of America. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), without the prior written permission of the publisher. ISA 67 Alexander Drive P.O. Box 12277 Research Triangle Park, North Carolina 27709
Preface
This preface is included for information and is not a part of ISA-5.1-1984 (R1992). This standard has been prepared as part of the service of ISA toward a goal of uniformity in the field of instrumentation. To be of real value, this document should not be static, but should be subject to periodic review. Toward this end, the Society welcomes all comments and criticisms, and asks that they be addressed to the Secretary, Standards and Practices Board, ISA, 67 Alexander Drive, P.O. Box 12277, Research Triangle Park, NC 27709, Telephone (919) 5498411, e-mail: standards@isa.org. The ISA Standards and Practices Department is aware of the growing need for attention to the metric system of units in general, and the International