in stopping passenger vehicles and SUVs. However, as
vehicle speeds approached 10 mph, the effectiveness
of both bollard types severely diminished. The level
of protection offered by IFC-compliant bollards
also varied greatly, depending on soil and pavement
conditions surrounding each bollard.
2. Typical cylinder cabinets—whether constructed of
aluminum or steel, anchored or unanchored, and
against a building wall or not—provided comparable or
even better impact protection. These cabinets, and the
propane cylinders they contained, survived passenger
vehicle and SUV impacts at speeds up to 10 mph.
Although the cylinders were damaged in some cases,
the damage was always well below that required to
rupture a 20-pound cylinder.
Phase 3: Code Advocacy
The results of the collision tests gave NPGA the
technical basis needed to advocate changes to the primary
IFC provisions that regulate propane gas. NPGA’s
recommendations were designed to:
1. Achieve better correlation between the IFC and NFPA 58.
2. Recognize cylinder storage and exchange cabinets
as a permissible alternative to the generic vehicle
impact protection methods described in IFC
NPGA’s recommended amendments, shown
below, were accepted by the ICC membership, and
the recommended changes are included in the 2015
edition of the IFC. (Underlined text has been added
to the code. Text shown with “strike through” has been
6107.4 Protecting containers from vehicles. Where
exposed to vehicular damage due to proximity to alleys,
driveways or parking areas, LP-gas containers, regulators
and piping shall be protected in accordance with NFPA
6109.13 Protection of containers. LP-gas containers
shall be stored within a suitable enclosure or otherwise
protected against tampering. Vehicular Vehicle impact
protection shall be provided as required by Section 6107.4.
the fire code official.
Experiencing Corrosion in a
Storage Tank or Pipeline?
Is It Caused by Microorganisms?
— Use —
to quantify the
types of bacteria
Contact Microbial Insights, Inc.
Sulfate Reducing Bacteria
Sulfate Reducing Archaea
Nitrate Reducing Bacteria
Iron Oxidizing Bacteria
Manganese Oxidizing Bacteria
Sulfur Oxidizing Bacteria
Iron Reducing Bacteria
Ammonia Oxidizing Bacteria
Nitrogen Fixing Bacteria