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from broken packages protected by yellow labels should also be removed. Acids or other corrosive liquids spilled from broken packages or tank cars should be covered with dry earth and the floor of cars, other than tank cars, should be thoroughly cleaned or renewed.
(c) Lighting equipment for wrecking outfits. All wrecking outfits should be equipped with portable electric lights.
(d) Special instructions for oil fires. If the fire can not be smothered by use of earth, steam, or wet blankets, effort should be concentrated on confining it and saving other property.
(e) Leaking tank car due to condition of bottom outlet. Should a tank car leak, due to breaking off of the bottom discharge outlet casting or its cap, leakage may be stopped, for example, by driving a tapered wooden plug into the opening, or by plugging opening with cloth or burlap pad held in place by a plank, or by raising the safety valve until all interior pressure is relieved and then removing the manhole cover and reseating the valve by manipulating the operating mechanism, as a shock sufficient to damage the bottom discharge outlet usually unseats valves of the type illustrated below.
The manhole cover when removed for any purpose must be removed and replaced in accordance with the provisions of $ 80.298 (c), (d), (m).
To ascertain whether the valve is properly seated, the valve-rod handle in the dome should be moved back and forth a few times, or the valve-rod wheel should be rotated. The following drawing indicates the general plan covering the bottom discharge outlet and valveoperating
mechanism with which many of the tank cars now in service are equipped. There are, however, many cars in service and being built with valves that are opened and closed by means of a wheel on the valve rod instead of a handle as shown, and with the valve held positively on its seat by some mechanical means other than a spring.** [Pars. 704–708]
80.306 Removal of placards after unloading. When the lading requiring placards is removed from cars, other than tank cars, placards and car certificates must be removed by the party unloading the car.
When the lading requiring “Inflammable," “Corrosive Liquid," “Compressed Gas," or "Poisonous,”
placards has been removed
from a tank car, the placards must be removed by the party unloading the car and the tank car forwarded without placards, or the placards must be replaced by four "Dangerous—Empty" placards as prescribed in $ 80.307.*1 [Par. 709, as amended June 27, 1931] 80.307 “Dangerous - Empty" placard. "Dangerous - Empty"
. placards must measure 1034 inches on each side. The printing must be as shown in the cut in this paragraph, in black on strong white paper, or on tag board designated commercially as No. 2 tag board, and weighing 150 pounds per ream of sheets 24 inches by 36 inches, and having a resistance of not less than 60 pounds per square inch, Mullen test; or on metal.
(a) Reversible placards may be either of metal or tag board. If of metal, the corners must be rounded off to a radius of not more than three-eighths of an inch. The background of the reversible metal placard must be white and the lettering black as indicated herein.
The reverse side of such placards must bear the wording as prescribed for the “Inflammable” or “Corrosive Liquid," placard. (See $ 80.278 (b) (1), (2).)
The wording on placards must be kept clearly legible.
(b) Paper placards must be securely pasted over the "Inflammable," "Corrosive Liquid,” “Compressed Gas," or "Poisonous,” placards pasted on metal placard boards provided for the purpose. Tag board placards must be securely tacked to wooden boards or inserted in holders provided for the purpose. Metal reversible placards must be adjusted so as to expose to view the side bearing the wording prescribed herein.** [Par. 710]
*For statutory citation, see note to § 80.1. tfor source citation, see note to 8 80.250.
NOTE: The words "Keep lights and fires away” and “Inflammable or poisonous vapor" may be omitted from placards attached to tank cars which previously contained alkaline corrosive liquids or corrosive liquids which do not react with the metal wall or lining of the tank to form an inflammable or poisonous gas.
80.308 Handling by electric railways and motor cars. (a) Dangerous explosives as specified in § 80.268 (a) (1) must not be transported in any self-propelled car operated by eléctric or other motive power, if such car is carrying passengers.
(b) Dangerous articles other than explosives (see SS 80. 106 (b), 80.130 (c), 80.150 (b), 80.170 (b), 80.191), and the less dangerous and relatively safe explosives (see § 80.268 (a) (2), (3)), when transported in self-propelled motor cars, must be carried ment of such car in which there shall be no electrically operated apparatus, or electric circuits, other than circuits in conduits properly installed.
(c) When the motor car is used as a freight or baggage car and not as a passenger car, not more than 500 pounds net of explosives, or exceeding 5,000 blasting caps or electric blasting caps, may be transported. Blasting caps in any quantity must not be carried in Page 1090
the same car with high explosives. The explosives must be placed in a "magazine" box made of sound lumber not less than 1 inch thick, covered on the exterior with metal, and provided with strong handles. This box must be plainly stenciled on the top, sides, and ends, in letters not less than 2 inches high, "Explosives-Dangerous—Handle Carefully." The box must be provided with strong hinges and with a lock for keeping it securely closed. Vacant space in the box must be filled with a cushioning material such as sawdust or excelsior, and the box must be properly stayed to prevent movement within the car.
(d) Explosives when transported in trailer or other cars must be securely blocked, braced, and stayed so as to prevent movement during transit, and other freight must not be permitted to fall on or slide against such shipments.
(e) Trailer cars or other cars not occupied by a representative of the carrier must bear the standard placards as prescribed herein.
(f) Explosives and other dangerous articles must not be loaded and transported together, except as permitted by the loading chart, Part 73.
(g) All the requirements of the regulations in Parts 72–82 as to packing, marking, labeling, description, certification and waybilling, must be complied with for all shipments of explosives or other dangerous articles transported by electric railways or other selfpropelled motor car lines engaged in interstate or foreign commerce.** [Pars. 711-717] PART 81-EXPRESS: EXPLOSIVES AND OTHER
Sec. 81.0 Dangerous articles list (ex
Dangerous articles other than press).
explosives by express General regulations—Express 81.50 Forbidden and acceptable dan81.1 Purpose and application.
gerous articles other than ex81.2 Canadian shipments.
81.51 Specification containers 81.3 Import shipments.
scribed. 81.4 Specification containers pre
$1.52 Specification containers in outscribed.
side containers. 81.5 Reused containers,
81.53 Unnecessary labels. 81.6 Explosives with other articles.
81.54 Automobiles, motor cycles, etc. 81.7 Maximum quantity in outside
81.56 List; shipment of articles not 81.9 Receipts.
named; maximum capacities.
81.57 Exemptions. 81.10 Removal at destination.
81.58 Maximum quantities in outside Explosives
packages. 81.20 Forbidden and acceptable ex. 81.59 Outage (free space in inplosives.
ers). 81.21 Definitions.
81.60 Special packing requirements. 81.22 Samples of explosives.
81.61 General packing requirements. 81.23 Small-arms ammunition, prim. 81.62 Viscous inflammable liquids.
81.63 Marking. ers, fuzes, safety fuse, safety
81.64 Labels. squibs. 81.24 Fireworks.
Inflammable solids and oxidiz81.25 Labels.
ing materials 81.28 Nonexplosive material.
81.65 Definitions and listing.
*For statutory citation, see note to 8 80.1.
Sec. 81.66 Exemptions.
81.91 General packing requirements 81.67 Maximum quantities in outside
for poisonous liquids, class B. packages.
81.92 Special packing requirements 81.68 Special packing requirements.
for poisonous solids, class B. 81.69 General packing requirements. 81.93 General packing requirements 81.70 Marking.
for poisonous solids, class B. 81.71 Labels.
81.94 Poisonous articles—Tear gas laCorrosive liquids
bel. 81.72 Definition.
81.95 Labels. 81.73 List; shipment of articles not
Regulations applying more parnamed.
ticularly to the carriers of ex81.74 Exemptions.
plosives and other dangerous 81.75 Maximum quantities in outside
articles by express; regulapackages.
tions for handling 81.76 Special packing requirements. 81.77 General packing requirements.
81.100 Handling packages, care used. 81.78 Marking.
81.101 Loading into passenger carrying 81.79 Labels.
trains, poisons not in messenCompressed gases
ger cars when practicable. 81.102 Express or baggage
ip 81.80 Definition.
freight trains; placards. 81.81 List; shipment of articles not 81.103 Carrier must see that regulanamed.
tions are complied with. 81.82 Exemptions.
81.104 Cars used; heated units screened 81.83 General packing requirements
or guarded. for compressed gases.
81.105 Packages loaded in sealed cars 81.84 Special packing requirements
for ready removal. for compressed gases. 81.85 Qualification and maintenance 91.107 Astray shipments.
$1.106 Automobile, etc., tanks drained. of cylinders.
81.108 Connecting line shipments. 81.86 Marking containers for ship- 81.109 Disposition of on-hand shipment.
ments. .81.87 Labels.
31.110 Marking containers for shipPoisonous articles
ment. 81.88 Definitions.
81.111 Receipts. 81.89 List.
81.112 Waybills. 81.90 Special packing requirements 81.113 Labels. for poisonous liquids, class B. 81.114 Reporting violations.
Name of article