GB 1251.1-1989
Replaced
DB11/ 646.4-2009
Replaced
Beijing CityLocal standards
DB11/ 646.4-2009 Urban rail transit security technology requirements Part 4: Chemical monitoring subsystem
DB11/ 646.4-2009 Urban rail transit security technology requirements Part 4: Chemical monitoring subsystem
Price:
$ 30
Basic Information
Standard Code:
DB11/ 646.4-2009
Standard Type:
Local standards
Standard Status:
Replaced
is_force_gb:
no
CCS Name:
Security and Alarm System
ICS Name:
Alarm and warning systems
Publish Date:
2009-07-08
Implement Date:
2009-08-01
Development Information
Same series standard
DB11/ 646.1-2009 Urban rail transit security prevention technology requirements Part 1: General rules
DB11/ 646.2-2009 Urban rail transit security technology requirements Part 2: Video security monitoring subsystem
DB11/ 646.3-2009 Urban rail transit security technical requirements Part 3: Physical protection and intrusion alarm subsystem
DB11/ 646.5-2009 Urban rail transit security technology requirements Part 5: Monitoring and disposal of radioactive materials
DB11/ 646.6-2009 Urban rail transit security prevention technology requirements - Part 6: Weapon and explosive hazard detection and disposal
Superseded by the following standards
Related Standards
GB/T 12800-1991
Active
GB/T 12800-1991 Acoustics—Audible emergency evacuation signal
GB/T 12787-1991
Replaced
GB/T 12787-1991 Warning equipment for criticality accidents
GB/T 14918-1994
Active
GB/T 14918-1994 General specification of signal pistol
GB 15207-1994
Abolished
GB 15207-1994 Video motion detector
GB 15209-1994
Replaced