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API RP 1109

Marking Liquid Petroleum Pipeline Facilities

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Organization: API
Publication Date: 1 January 1993
Status: inactive
Page Count: 19
scope:

1.1 Scope

1.1.1 This recommended practice addresses the permanent marking of liquid petroleum pipeline transportation facilities. It covers the design, message, installation, placement, inspection, and maintenance of markers and signs on pipeline facilities located onshore and at inland waterway crossings. Markers and signs indicate the presence of a pipeline facility and warn of the potential hazards associated with its presence and operation. The markers and signs may contain information to be used by the public when reporting emergencies and seeking assistance in determining the precise location of a buried pipeline.

1.1.2 The provisions of this recommended practice cover the minimum marker and sign requirements for liquid petroleum pipeline facilities. Alternative markers, which are recommended for some locations under certain circumstances, are also discussed. The pipeline operator is responsible for determining the extent of pipeline marking and the level of public communication necessary. Consideration should be given to the risk of pipeline failure or damage; hazardous characteristics of the commodity being transported; and the pipeline's proximity to industrial, commercial, residential, and environmentally sensitive areas. Several examples of markers and signs with locations are illustrated in Figures 1, 2, 6, and 7. The pipeline marking and communication programs are also integral parts of the pipeline operator's maintenance and emergency plans.

1.1.3 This recommended practice is not intended to be applied retroactively. Its recommendations are for new construction and for normal marker maintenance programs subsequent to the effective date of this edition.

Document History

October 1, 2017
Line Markers and Signage for Hazardous Liquid Pipelines and Facilities
This RP addresses the permanent marking of hazardous liquid pipeline transportation facilities. It covers the design, message, installation, placement, inspection, and maintenance of markers and...
October 1, 2010
Marking Liquid Petroleum Pipeline Facilities
This recommended practice (RP) addresses the permanent marking of hazardous liquid pipeline transportation facilities. It covers the design, message, installation, placement, inspection, and...
October 1, 2010
Marking Liquid Petroleum Pipeline Facilities
This recommended practice (RP) addresses the permanent marking of hazardous liquid pipeline transportation facilities. It covers the design, message, installation, placement, inspection, and...
July 1, 2003
Marking Liquid Petroleum Pipeline Facilities
This recommended practice addresses the permanent marking of liquid petroleum pipeline transportation facilities. It covers the design, message, installation, placement, inspection, and maintenance...
API RP 1109
January 1, 1993
Marking Liquid Petroleum Pipeline Facilities
1.1 Scope 1.1.1 This recommended practice addresses the permanent marking of liquid petroleum pipeline transportation facilities. It covers the design, message, installation, placement, inspection,...
October 1, 1971
RECOMMENDED PRACTICE FOR MARKING LIQUID PETROLEUM PIPELINE FACILITIES
This Recommended Practice covers the marking of liquid petroleum pipeline transportation facilities. It recommends a Standard Pipeline Warning Sign and criteria for the design, construction,...
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