LC-PCC policy statements for Abbreviations for units

LC/PCC practice: Use symbols or abbreviations that apply to units of measurement when recording Manifestation: dimensions, Manifestation: dimensions of cartographic image, and Manifestation: dimensions of still image.

Use symbols or abbreviations that apply to units of measurement when recording the amount of storage space occupied by the collection in Manifestation: extent of manifestation in non-metric units of measurement.

Use symbols or abbreviations that apply to units of measurement when recording Expression: additional scale information.

Abbreviations are followed by a full stop (period). Metric symbols are not abbreviations and are not followed by a full stop.

LC/PCC practice: Use symbols or abbreviations that apply to units of time when recording Expression: duration.

Use symbols or abbreviations that apply to units of time when recording Work: right ascension.

Abbreviations are followed by a full stop (period). Metric symbols are not abbreviations and are not followed by a full stop.