Page 3 - MGPI_Case_Study

GLOSSARY Motor carrier: a general term for chemical distributors that deliver
Acid: a substance capable of donating a hydrogen ion (e.g., sulfuric chemicals via highway.

acid). A solution of acid and water has a pH less than 7.
Mod B area: where the incident took place at MGPI. It includes the

Base: a substance capable of accepting a hydrogen ion from a transfer equipment, tank farm, process area, and control room.
proton donor (e.g., sodium hypochlorite). An aqueous solution of a
base, or alkali, has a pH greater than 7. A base reacts with an acid to Mod B building: the building within the Mod B area that contains
produce a salt. the indoor chemical processes, a locker room, laboratory, and the
control room.
Bill of Lading: a document issued by a carrier that details the type,
quantity, and destination of the goods being transported. Plume: a continuous release of a gas cloud.

Cargo tank: a tank intended primarily for the carriage of liquids, Split rings: metal rings with a split around the circumference used to
gases, solids or semi-solids that is attached to or forms part of a motor attach two objects; also known as key rings.

vehicle; also referred to as a “tanker” in this Case Study.
Transfer equipment: a general term for the fill lines, valves and

Cargo tank motor vehicle: a motor vehicle with one or more cargo piping used to unload and transfer chemicals from cargo tank motor
tanks permanently attached to or forming an integral part of the vehicles to storage tanks.
motor vehicle.
1
ACRONYMS AND ABBREVIATIONS
Cam lever dust cap: a metal or plastic cap that attaches to the fill
AAR & IP After-Action Report and Improvement Plan
line connection point to prevent debris and access to the fill line. These
caps contain levers that, when in the closed position, prevent the
ACDEM Atchison County Department of
removal of the cap. The levers can be locked in the closed position to
Emergency Management
prevent unauthorized access.

AFD Atchison Fire Department
Connection point: the point at which a hose connects to a fill line.

ANSI American National Standards Institute
Day tank: a tank that contains enough chemical inventory to be used
in one day or a short period of time; day tanks are typically refilled daily
API American Petroleum Institute
or as needed by transferring chemicals from larger bulk storage tanks.

ASHRAE American Society of Heating, Refrigeration,
Discharge hose: the hose from the cargo tank motor vehicle
and Air Conditioning Engineers
connected to the fill line.

ATSDR Agency for Toxic Substances and Disease Registry
Fill lines: facility piping where hoses are connected to unload
chemicals from cargo tank motor vehicles.
CCPS Center for Chemical Process Safety

Heating, ventilation and air conditioning: systems that provide
thermal comfort and air quality in indoor spaces. CEPR Commission on Emergency Planning and Response

CI Chlorine Institute

1 49 C.F.R. § 171.8 (2017).
CSB MGPI Processing Case Study 3