ANSI-ISA-5.2-1976(R1992) Binary Logic Diagrams for Process Operations
|
ID： |
4844BB22F041454588644DF7A9C04DEE |
|
文件大小(MB)： |
0.4 |
|
页数： |
28 |
|
文件格式： |
|
|
日期： |
2009-5-22 |
|
购买： |
文本摘录（文本识别可能有误，但文件阅览显示及打印正常，pdf文件可进行文字搜索定位）：
Binary Logic Diagrams for,Process Operations,Reaffirmed 13 July 1992,ANSI/ISA–5.2–1976 (R1992),Formerly ANSI/ISA–S5.2–1976 (R1992),AMERICAN NATIONAL STANDARD,ISA The Instrumentation,Systems, and,Automation Society,–,TM,Copyright ?1976 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,ANSI/ISA-5.2-1976 (R1992),Binary Logic Diagrams for Process Operations,ISBN 0-87664-331-4,ANSI/ISA-5.2-1976 (R 1992) 3,Preface,This preface is included for informational purposes and is not part of ANSI/ISA-5.2-1976,(R1992).,This Standard has been prepared as a 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) 549-,8411, 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 System of Units (SI) in particular, in the,preparation of instrumentation standards. The Department is further aware of the benefits to,USA users of ISA Standards of incorporating suitable references to the SI (and the metric,system) in their business and professional dealings with other countries. Toward this end this,Department will endeavor to introduce SI-acceptable metric units in all new and revised,standards to the greatest extent possible. The Metric Practice Guide, which has been published,by the American Society for Testing and Materials as ANSI designation Z210.1 (ASTM E380-76,IEEE Std. 286-1975), and further revisions, will be the reference guide for definitions, symbols,abbreviation, and conversion factors.,It is the Policy of ISA to encourage and welcome the participation of all concerned individuals and,interests in the development of ISA Standards. Participation in the ISA Standards making,process by an individual in no way constitutes endorsement by the employer of that individual of,ISA or any of the Standards which ISA develops.,The system described in this Standard is intended to meet the needs of people who are,concerned with the operation of process systems. The guide for the Standard was American,National Standards Institute (ANSI) Standard Y32.14.1973, Graphic Symbols for Logic,Diagrams, which the committee attempted to follow so far as practical for the intended users of,the ISA Standard.,The Committee also referred to National Electric Manufacturers Association Standards ICS 1-,102, Graphic Symbols for Logic Diagrams, whose symbols bear resemblance to those of the,ANSI Standard, and ICS 1-103, Static Switching Control Devices, which may eventually be,supplanted by ICS 1-102. Reference was also made to National Fluid Power Association,Recommended Standard T.3.7.68.2, Graphic Symbols for Fluidic Devices and Circuits. In,addition, numerous other industrial standards were reviewed.,The following people served on the 1976 SP5.2 Committee:,NAME COMPANY,George Platt, Chairman Bechtel Power Company,Edward J. Blahut Procon Incorporated, Pacific Operations,Sanford Chalfin Fluor Corporation,Louis Costea Hunt-Wesson Foods, Incorporated,Russell C. Greer Bailey Meter Company,Roy Lazar Carnation Company,4 ANSI/ISA-5.2-1976 (R 1992),Frank Mehle (deceased) Procon Incorporated, Pacific Operation,Gary L. Pierce Shell Oil Company,Chuck Simms Fisher Controls Company,John Vance United Process Control Systems,Robert Woo Los Angeles Department of Water & Power,The following people served on the 1981 (reaffirmation) SP5.2 Committee:,NAME COMPANY,Russell C. Greer, Chairman Bailey Controls Company,Edward J. Blahut Blahut Engineering, Inc.,Sanford Chalfin Fluor Corporation (retired),Louis Costea Hunt-Wesson Foods, Inc.,Roy Lazar Carnation Company,Gary L. Pierce Shell Oil Company,George Platt Bechtel Power Corporation,Charles Simms Fisher Controls Company,John Vance Comsysco,Robert Woo Los Angeles Department of Water & Power,The 1976 edition of this Standard was approved by the ISA Standards and Practices Board in,November, 1975.,NAME COMPANY,W. B. Miller, Chairman Moore Pr……
……