ANSI C79.1:2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
American National Standard for Nomenclature for Glass Bulbs Intended for Use with Electric Lamps
08-12-2014
01-01-2002
Foreword
1 Scope
2 Definitions
2.1 Bulb
2.2 Approximate reference line
2.3 Base line or base circle
2.4 Base line length
3 Designations
3.1 General (other than rectangular)
3.1.1 First letter symbol
3.1.2 First number symbol
3.1.3 Second letter symbol
3.1.4 Second number symbol
3.1.5 Fluorescent and PAR
4 Units
4.1 Customary units
4.2 SI (Metric) units
4.2.1 General
4.2.2 Fluorescent bulbs
7.2.3 Round PAR
7.2.4 Rectangular bulbs
5 Examples of designations
5.1 Customary units
5.2 SI (metric) units
6 Bulb shape classification
6.1 Basic shapes
6.2 Modifiers
7 Identification of bulbs for use in lamps
7.1 Lamp descriptions in customary units
7.2 Lamp descriptions in metric units
Appendices
Annex A (informative) Decimal equivalents and metric
conversions of existing bulbs
Annex B (informative) Related Standards
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