Chapter 6 Answers
6.1 (a) When the letter “A” appears in column 1 of the Hazardous Materials Table,
DOT regulates the transportation of the indicated hazardous material only
when the shipper or carrier selects aircraft as the mode of transportation.
In Table 6.1, the letter “A” appears in column 1 for calcium oxide only.
(b) When the letter “W” appears in column 1 of the Hazardous Materials
Table, DOT regulates the transportation of the indicated hazardous
material only when the shipper or carrier selects watercraft as the mode of
transportation. In Table 6.1, no hazardous materials are listed
whose transportation is regulated solely by watercraft.
6.4 When offered for shipment by motor carrier, the basic description of lithium
aluminum hydride is the following:
25 lb Lithium aluminum hydride, 4.3, UN1410, PG I (dangerous when wet)
6.9 (a) By reference to the entry in column 9B, we determine that DOT prohibits a
carrier from transporting by cargo aircraft a consignment of acetonitrile
whose volume exceeds 60 L. Consequently, to comply with the DOT
regulations, the professor may not ship 240 L of acetonitrile as a single
consignment by cargo aircraft.
(b) To comply with the DOT regulations, the professor may ship 60 L of
acetonitrile by cargo aircraft. To ship 240 L, four separate consignments
are required.
(c) The basic description of the consignment of acetonitrile by cargo aircraft is
the following:
60 L Acetonitrile, 3, UN1648, PG II, Ltd Qty (Cargo Aircraft Only)
6.14 (a) When offered for transportation by cargo aircraft, the basic description of
ethyl mercaptan is the following:
25 L Ethyl mercaptan, 3, UN2363, PG I (Ltd Qty) (Cargo Aircraft Only)
(b) DOT requires the carrier to affix FLAMMABLE LIQUID and CARGO
AIRCRAFT ONLY labels to the packaging.
(c) DOT requires the carrier to mark on the packaging the name and address
of the shipper or receiver, “ethyl mercaptan, UN2363,” and a designation
of “arrows up.”
6.21 First-on-the-scene responders generally determine that a confined flammable
gas is present at the scene of a transportation mishap by observing any of the
following:
• The number 2.1 as a component of the basic description of a hazardous
material listed on a shipping paper
• The words “FLAMMABLE GAS” printed upon red labels affixed to
packaging
• The words “FLAMMABLE GAS” printed on red placards posted on the
relevant transport vehicle
6.22 First-on-the-scene responders generally determine that a confined flammable
or combustible liquid is present at the scene of a transportation mishap by
observing any of the following:
• The number 3 as a component of the basic description of a hazardous
material listed on a shipping paper
• The word “FLAMMABLE LIQUID” printed upon red labels affixed to
packaging
• Either of the words “FLAMMABLE” or “COMBUSTIBLE” printed on
red placards posted on the relevant transport vehicle