— 3 — ANSI/ISA-88.00.03-2003
Preface
This preface, as well as all footnotes and annexes, is included for information purposes and is not part of
ANSI/ISA–88.00.03–2003.
This document has been prepared as part of the service of ISAThe Instrumentation, Systems, and
Automation Societytoward 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; Fax (919) 549-8288; 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, recommended practices, and technical
reports to the greatest extent possible. Standard for Use of the International System of Units (SI): The
Modern Metric System, published by the American Society for Testing & Materials as IEEE/ASTM SI 10-
97, and future revisions, will be the reference guide for definitions, symbols, abbreviations, and
conversion factors.
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interests in the development of ISA standards, recommended practices, and technical reports.
Participation in the ISA standards-making process by an individual in no way constitutes endorsement by
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