QB/T 2049.3-2013
Glass bulb dimensions for lamps.BT series shapes (English Version)

Standard No.

QB/T 2049.3-2013

Language

Chinese, Available in English version

Release Date

2013

Published By

Professional Standard - Light Industry

Latest

QB/T 2049.3-2013

Replace

QB/T 2049.3-1994

Scope

This part specifies the appearance and main dimension series of BT type glass bulbs for lamps.

QB/T 2049.3-2013 Referenced Document

• QB/T 1112 Glass bulb designation system for lamps

QB/T 2049.3-2013 history

• 2013 QB/T 2049.3-2013 Glass bulb dimensions for lamps.BT series shapes
• 1995 QB/T 2049.3-1994 Glass envelope of electric light source Dimension of BT model glass envelope