NFPA 30 and NFPA 30A
and Low-Pressure Storage Tanks, 5th edition. A new edition of
this document has been adopted by API and it has undergone major changes to be compatible with the International
Organization for Standardization’s ISO 28300, Petroleum,
Petrochemical and Natural Gas Industries—Venting of
Atmospheric and Low-Pressure Storage Tanks. The criteria
in NFPA 30 will have to be compared with the new API standard to ensure compatibility and to verify that the emergency
venting called for in NFPA 30 is appropriate.
At this time, for large, field-erected storage tanks, NFPA
30 references API Standard 2350, Overfill Protection for Storage Tanks in Petroleum Facilities. This standard has undergone extensive revision, as a consequence of the devastating
fire and explosion at the Buncefield Oil Depot, Hertfordshire, England, in December 2005. (See above right.)
The Technical Committee on Tank Storage and Piping
Systems will review the investigation report of this incident to
determine whether NFPA 30 needs to provide more specific
requirements for overfill prevention beyond those required by
API Standard 2350.
Also as a consequence of the Buncefield incident and of
a similar fire on October 23, 2009, at the Caribbean Petroleum Refining Co., in San Juan, Puerto Rico, the Technical
Committee on Tank Storage and Piping Systems will evaluate whether tank-to-tank spacing rules need to be revised. If
so, this likely will affect only large, field-erected tanks.
For NFPA 30A, issues involving the introduction of
the mid-blend ethanol fuels will continue to dominate
Aerial Photo of Buncefield oil depot
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