359 

Pipeline and Haz. Matls. Safety Admin., DOT 

§ 172.102 

than 10 grains of explosives composition 
may be packed into one cubic inch of 
space, and not more than 17.5 grains of 
the explosive composition of toy caps 
may be packed in any inner packaging; 

f. Inner packagings must be packed in 

outer packagings meeting PG II perform-
ance criteria; 

g. Toy caps may be packed with non-explo-

sive or non-flammable articles provided 
the outer packagings are marked as pre-
scribed in this paragraph; 

h. Toy paper caps of any kind must not be 

packed in the same packaging with fire-
works; 

i. The outside of each package must be 

plainly marked ‘‘ARTICLES, EXPLO-
SIVES, N.O.S. (TOY CAPS)—HANDLE 
CAREFULLY’’ OR ‘‘TOY CAPS—HAN-
DLE CAREFULLY’’; and 

j. Explosives shipped in conformance with 

this paragraph must have been examined 
in accordance with § 173.56 of this sub-
chapter and approved by the Associate 
Administrator. 

383

For transportation by motor vehicle, 

substances meeting the conditions for high 
viscosity flammable liquids as prescribed 
in § 173.121(b)(1)(i), (b)(1)(ii), and (b)(1)(iv) of 
this subchapter, may be reassigned to 
Packing Group III under the following con-
ditions: 
a. Packaging must be UN standard metal 

drums attached with heavy duty steel 
strapping to a pallet; and 

b. The capacity of each drum must not ex-

ceed 220 L (58 gallons). 

384

For green graphite electrodes and 

shapes that are large single component 
solid objects not subject to shifting, trans-
port in open rail flat cars, open bed motor 
vehicles, and intermodal containers is also 
authorized. The objects must be secured to 
the flat car, motor vehicle, intermodal 
container, or unitized by steel banding to 
wooden runners or pallets and the units se-
cured to the flat car, motor vehicle, or 
freight container to prevent shifting and 
movement, including relative motion be-
tween the objects, under conditions nor-
mally incident to transportation. Stacking 
is permitted two or more levels high to 
achieve maximum allowable utilization of 
the designated vehicle, rail car weight, or 
intermodal freight container weight or ves-
sel hold volume. 

385

Notwithstanding the provisions of 

§ 177.834(l) of this subchapter, cargo heaters 
may be used when weather conditions are 
such that the freezing of a wetted explosive 
material is likely. Shipments must be 
made by private, leased or contract carrier 
vehicles under exclusive use of the offeror. 
Cargo heaters must be reverse refrigera-
tion (heat pump) units. Shipments made in 
accordance with this Special provision are 

excepted from the requirements of 
§ 173.60(b)(4) of this subchapter. 

386

When transported by private motor car-

rier only, the following corrosive liquids 
may be packaged in polyethylene bottles 
with a capacity no greater than 3.785L (one 
gallon), further packed inside an open-top, 
heavy wall, high density polyethylene box 
(

i.e., 

crate) in a manner that the poly-

ethylene bottles are not subjected to any 
superimposed weight, and the boxes must 
be reasonably secured against movement 
within the transport vehicle and loaded so 
as to minimize the possibility of coming in 
contact with other lading: 

Compounds, cleaning liquid, NA1760, PG II 

or III; 

Corrosive liquid, acidic, inorganic, n.o.s., 

UN3264, PG II; 

Corrosive liquid, acidic, organic, n.o.s., UN 

3265, PG III; 

Corrosive liquid, basic, inorganic, n.o.s., 

UN3266, PG II; 

Hypochlorite solutions, UN1791, PG III; 
Hydrochloric acid solution, UN 1789, PG II; 

and 

Sulfuric acid, UN2796, PG II. 

a. No more than four bottles, securely 

closed with threaded caps, may be 
packed in each box. 

b. Each empty bottle must have a min-

imum weight of not less than 140 grams 
and a minimum wall thickness of not 
less than 0.020 inch (0.508 mm). 

c. The completed package must meet the 

Packing Group II performance level, as 
applicable for combination packagings 
with a plastic box outer packaging, in ac-
cordance with subpart M of part 178 of 
this subchapter. 

(i) Tests must be performed on each type 

and size of bottle, for each manufac-
turing location. Samples taken at ran-
dom must withstand the prescribed tests 
without breakage or leakage. 

(ii) One bottle for every two hours of pro-

duction, or for every 2500 bottles pro-
duced, must be tested by dropping a bot-
tle filled to 98% capacity with water 
from a height of 1.2 meters (3.9 feet) onto 
solid concrete directly on the closure. 

(iii) A copy of the test results must be kept 

on file at each facility where packagings 
are offered for transportation, and must 
be made available to a representative of 
the Department upon request. 

(iv) The name or symbol of the bottle pro-

ducer, and the month and year of manu-
facture, must be marked by embossing, 
ink-jet printing of permanent ink, or 
other permanent means on the face or 
bottom of each bottle, in letters and 
numbers at least 6 mm (0.2 inch) high. 
Symbols, if used, must be registered with 
the Associate Administrator. 

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