DB31/ 89-2009
Safety and Technical Requirements for Town Gas Leakage Alarm (English Version)

Standard No.

DB31/ 89-2009

Language

Chinese, Available in English version

Release Date

2009

Published By

Shanghai Provincial Standard of the People's Republic of China

Status

Be replaced 1997-12

Replace By

DB31/ 89-1997

Latest

DB31/ 89-1997

DB31/ 89-2009

DB31/ 89-2009 history

• 2009 DB31/ 89-2009 Safety and Technical Requirements for Town Gas Leakage Alarm
• 1997 DB31/ 89-1997 Safety technical requirements for combustible gas leakage alarm