Links

External Links For Reference:
American Gas Association
American Public Gas Association
American Petroleum Institute
Elster American Meter
Eagle Research Corporation
Gas Technology Institute
Heath Consultants
Instrumentation Society of America
Institute For Supply Management
Itron
National Contract Management Association
National Fire Protection Association
National Climatic Data Center
National Conference of Weights and Measures
Natural Gas Resources
National Institute of Standards and Technology
Public Utilities Reports, Inc.
Sensus Metering Systems
Society of Manufacturing Engineers
U.S. Environmental Protection Agency