BS ISO 128-21 : 1997 AMD 13521
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
TECHNICAL DRAWINGS - GENERAL PRINCIPLES OF PRESENTATION - PART 21: PREPARATION OF LINES BY CAD SYSTEMS
04-24-2002
11-23-2012
Defines procedures for calculating important basic types of non-continuous lines and their line elements. (see ISO 128-20).
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