Page 98 - DLIS002_KNOWLEDGE ORGANIZATION CLASSIFICATION AND CATALOGUING THEORY

Unit 5: Universal Decimal Classification (UDC)

3. The independent auxiliaries (7.3.6.2) can be intercalated (7.3.6.3) so as to produce a required Notes
filing order, e.g. a country-by-country grouping for an activity such as mining:
622(410) Mining in Britain

622(410).333 Mining - Britain - coal
622(410).34 Mining - Britain - metals and ores
622(430) Mining - Germany
622(430).333 Mining - Germany - coal

622(430).34 Mining - Germany - metal ores
or for institutions, such as laws, that vary from country to country:
347.78(410) Copyright laws - Britain
347.78(410)1 Copyright - Britain - literary

347.78(410)5 Copyright - Britain - music
347.78(44) Copyright laws - France
347.78(44)1 Copyright - France - literary
347.78(44)5 Copyright - France - music.

4. Common auxiliaries can be intercalated if they have bi-terminal signs (7.3.6.3) - in other
words, any of the independent auxiliaries except language. However, a language auxiliary
can be followed by a colon.

5.4.4 Special Auxiliaries

These are used when some property of an object is under consideration, or when some process
is relevant to an object being studied, or when considering the development of an object, etc.
Special auxiliaries are used with class numbers that begin with 52 to 524. The notation for an
auxiliary is a hyphen (–) followed by up to 3 digits, placed after the main class number. Here is
a breakdown of the main aspects:
52-1 Mode of treatment
52-2 Not in use at present
52-3 Properties and Phenomena (Especially Geometrical)

52-4 Processes Relevant to Bodies and Systems
52-5 Stages in Development of Bodies and Systems
52-6 Processes Relevant to Radiation

52-7 Character of Radiation
52-8 Parts and Features of Individual Systems
Below is part of the further breakdown for 52– 7:
52-7 Character of Radiation
52-72 Corpuscular Radiation

52-724 Protons and Atomic Nuclei

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