The Inspec Classification arranges the subjects covered by Inspec hierarchically and assigns a code to each subject. Use classification codes to search the Classification field of Inspec records. You can also use classification headings to search the Topic field.

About Classification Codes

Inspec Classification codes represent subjects addressed by source documents. Every code has a text heading. Every record in the Inspec product has at least one classification code.

Be aware that a search for a higher level code will not automatically retrieve records indexed with codes subordinate to it. For example, searching for A8200 (Physical chemistry) will not automatically retrieve records that contain A8220 (Chemical kinetics).

Format of Classification Codes

The format consists of SNNNNX, where:

S is the Section Letter A, B, C, or D;

A - Physics
B - Electrical and Electronic Engineering
C - Computers and Control
D - Information Technology

NNNN are numerics; and

X is an optional uppercase alphabetic character.

About Scope Notes

Most scope notes include guidelines for using supplementary or alternative codes in your search, depending on what information you're after. For example, B1305 Microwave materials contains a cross-reference note and a history scope note.

See Also Cross Reference: see also B2520... Semiconductor materials, B2810... Dielectric materials, B3110...Magnetic materials, B3220... Superconducting materials

History Scope Notes: 1999-