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CSA ISO/IEC 8824 : 0



A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.


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Withdrawn date




1 Scope
2 Normative references
3 Definitions
4 Abbreviations
5 Notation used in this International Standard
   5.1 Productions
   5.2 The alternative collections
   5.3 Example of a production
   5.4 Layout
   5.5 Recursion
   5.6 References to a collection of sequences
   5.7 References to an item
   5.8 Tags
6 Use of the ASN.1 notation
7 The ASN.1 character set
8 ASN.1 items
   8.1 General rules
   8.2 Type references
   8.3 Identifiers
   8.4 Value references
   8.5 Module reference
   8.6 Comment
   8.7 Empty item
   8.8 Number item
   8.9 Binary string item
   8.10 Hexadecimal string item
   8.11 Character string item
   8.12 Assignment item
   8.13 Single character items
   8.14 Keyword items
   8.15 Range Separator
   8.16 Ellipsis
9 Module definition
10 Referencing type and value definitions
11 Assigning types and values
12 Definition of types and values
13 Notation for the boolean type
14 Notation for the integer type
15 Notation for the enumerated type
16 Notation for the real type
17 Notation for the bitstring type
18 Notation for the octetstring type
19 Notation for the null type
20 Notation for sequence types
21 Notation for sequence-of types
22 Notation for set types
23 Notation for set-of types
24 Notation for choice types
25 Notation for selection types
26 Notation for tagged types
27 Notation for the any type
28 Notation for the object identifier type
29 Notation for character string types
30 Notation for types defined in clauses 32-35
31 Definition of character string types
32 Generalized item
33 Universal time
34 The external type
35 The object descriptor type
36 Subtype notation
37 Subtype Value Sets
   37.1 Single Value
   37.2 Contained Subtype
   37.3 Value Range
   37.4 Size Constraint
   37.5 Permitted Alphabet
   37.6 Inner Subtyping
A The macro notation
   A.1 Introduction
   A.2 Extensions to the ASN.1 character set and items
   A.3 Macro definition notation
   A.4 Use of the new notation
B ISO assignment of OBJECT IDENTIFIER component values
C CCITT assignment OBJECT IDENTIFIER component values
D Joint assignment of OBJECT IDENTIFIER component
E Example and hints
   E.1 Example of a personnel record
   E.2 Guidelines for use of the notation
   E.3 An example of the use of the macro notation
   E.4 Use in identifying abstract syntaxes
   E.5 Subtypes
F Summary of the ASN.1 notation

Specifies a notation for abstract syntax definition called Abstract Syntax Notation One (ASN.1). Defines a number of simple types, with their tags, and specifies a notation for referencing these types and for specifying values of these types. Defines mechanisms for constructing new types from more basic types, and specifies a notation for defining such structured types and assigning them tags, and for specifying values of these types. Defines character sets (by reference to other International Standards) for use within ASN.1. Defines a number of useful types (using ASN.1), which can be referenced by users of ASN.1.

Canadian Standards Association

Standards Relationship
ISO/IEC 8824:1990 Similar to

ISO 6523:1984 Data interchange — Structures for the identification of organizations
ISO 8823:1988 Information processing systems — Open Systems Interconnection — Connection oriented presentation protocol specification
ISO 8622:1998 Cinematography — Magnetic sound records on 70 mm motion-picture release prints with magnetic stripes — A-chain reproduction characteristics
ISO/IEC 8825:1990 Information technology — Open Systems Interconnection — Specification of Basic Encoding Rules for Abstract Syntax Notation One (ASN.1)
ISO 8601:2004 Data elements and interchange formats Information interchange Representation of dates and times
ISO/IEC 2375:2003 Information technology — Procedure for registration of escape sequences and coded character sets

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