ASCE 25 97 1997

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ASCE Standard 25 Earthquake-Actuated Automatic Gas Shutoff Devices

Published By	Publication Date	Number of Pages
ASCE	1997	28

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Description

This Standard, IEarthquake-Actuated Automatic Gas Shutoff Devicesn (ASCE 25-97), provides minimum functionality requirements for earthquake-actuated automatic gas shutoff devices and systems meant to include mechanical devices consisting of a sensing means and a means to shut off the flow of gaseous fuels. It basically applies to single-family or multi-family structures of three stories or less. The seismic performance requirements established by this Standard are based upon data from recent earthquakes, primarily in Southern California.

PDF Catalog

PDF Pages	PDF Title
7	ACKNOWLEDGMENTS ACKNOWLEDGMENTS ACKNOWLEDGMENTS ACKNOWLEDGMENTS
9	HISTORY OF THE DEVELOPMENT OF THE STANDARD HISTORY OF THE DEVELOPMENT OF THE STANDARD HISTORY OF THE DEVELOPMENT OF THE STANDARD HISTORY OF THE DEVELOPMENT OF THE STANDARD
13	1.0 General 1.0 General 1.1 Scope 1.1 Scope 1.2 Applicability 1.2 Applicability 1.2.1 Pressure Rating 1.2.1 Pressure Rating 1.2.2 Mounting 1.2.2 Mounting 1.3 Operation 1.3 Operation 1.3.1 Mode of Operation 1.3.1 Mode of Operation 1.3.2 Operating Conditions 1.3.2 Operating Conditions 1.3.3 Pressure Specification 1.3.3 Pressure Specification 1.4 Marking 1.4 Marking Permanent Label Permanent Label 1.4.2 Installation Warning 1.4.2 Installation Warning 1.4.3 Resetting Warning 1.4.3 Resetting Warning 1.5 Warranty 1.5 Warranty 1.0 General 1.0 General 1.1 Scope 1.1 Scope 1.2 Applicability 1.2 Applicability 1.2.1 Pressure Rating 1.2.1 Pressure Rating 1.2.2 Mounting 1.2.2 Mounting 1.3 Operation 1.3 Operation 1.3.1 Mode of Operation 1.3.1 Mode of Operation 1.3.2 Operating Conditions 1.3.2 Operating Conditions 1.3.3 Pressure Specification 1.3.3 Pressure Specification 1.4 Marking 1.4 Marking 1.4.1 Permanent Label 1.4.1 Permanent Label 1.4.2 Installation Warning 1.4.2 Installation Warning 1.4.3 Resetting Warning 1.4.3 Resetting Warning 1.5 Warranty 1.5 Warranty
15	2.5 Continued Operation 2.5 Continued Operation 3.0 Performance 3.0 Performance Rigidity of Mounting Rigidity of Mounting 3.2 Deflection Limits 3.2 Deflection Limits 3.3 Test Specimens 3.3 Test Specimens Response to Seismic Disturbances Response to Seismic Disturbances 3.4.1 Actuation Requirements 3.4.1 Actuation Requirements 3.4.2 Non-Actuation Requirements 3.4.2 Non-Actuation Requirements 3.5 Method of Test 3.5 Method of Test 2.5 Continued Operation 2.5 Continued Operation 3.0 Performance 3.0 Performance 3.1 Rigidity of Mounting 3.1 Rigidity of Mounting 3.2 Deflection Limits 3.2 Deflection Limits 3.3 Test Specimens 3.3 Test Specimens Response to Seismic Disturbances Response to Seismic Disturbances 3.4.1 Actuation Requirements 3.4.1 Actuation Requirements 3.4.2 Non-Actuation Requirements 3.4.2 Non-Actuation Requirements 3.5 Method of Test 3.5 Method of Test
18	Commentary Commentary Commentary Commentary
21	Appendix Appendix Appendix Appendix
23	Index Index Index Index