| POSC Specifications Version 2.2 | CGM*PIP Volume 1 - PIP/I/3 and PIP/II/3 |
| ISO/IEC 8632:1992 | Computer Graphics Metafile - Metafile for the Storage and Transfer of Picture Description Information. |
| NBS SP 424 | A Contribution to Computer Typesetting Techniques: Tables of Coordinates for Hershey's Repertory of Occidental Type Fonts and Graphic Symbols, NBS Special Publication 424, April 1976. |
| ANSI X3.134/2 | 8-bit American National Standards Code for Information Interchange
(8-bit ASCII). |
| Graphical Register | ISO Register of Graphical Items, maintained by the ISO/IEC Registration Authority. |
CGM*PIP is based on the CGM specification of the above-referenced document. In particular the referenced CGM revision is 1992. As an ISO standard, CGM:1992 cancels and replaces CGM:1987. The Version 1 metafile definition of ISO/IEC 8632:1992 (henceforth referred to as CGM:1992) is nearly identical to the metafile definition of CGM:1987, except that a substantial number of defect corrections and clarifications have been applied to the latter. Version 2 and Version 3 metafiles are defined only in CGM:1992.
It should be noted that the referenced document includes the full published document, plus all ISO-approved defect corrections of record at any given time. Implementors should keep current with these corrections and interpretations (contact ISO Document Sales, ISO, Geneva).
The referenced NBS (now NIST) publication defines the metrics and shape data for the "Hershey Fonts". Copies may be obtained from: National Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161. The glyph metric data and character code assignments of this PIP specification shall supersede those of the referenced publication in the case of conflict.
Copies of 8-bit ASCII may be obtained from: American National Standards Institute, Inc., 1430 Broadway, New York, NY 10018.
Copies of the ISO Register of Graphical Items may be obtained from: Registration Authority, Rm A266, Technology Building, National Institute of Standards and Technology, Gaithersburg, MD 20899.
In the event of a conflict between the text of this specification and the Normative References cited herein, the Normative References shall take precedence, unless otherwise indicated in this section.