176.142—Hazardous materials of extreme flammability.
(a)
Except as allowed by paragraph (b) of this section, certain hazardous materials of extreme flammability may not be transported in a vessel carrying Class 1 (explosive) materials. This prohibition applies to the following liquid hazardous materials:
Carbon disulfide | UN1131 | Class 3 |
Diethylzinc | UN1366 | Division 4.2 |
Dimethylzinc | UN1370 | Division 4.2 |
Magnesium alkys | UN3053 | Division 4.2 |
Methyl phosphonous di-chloride, pyrophoric liquid. | NA2845 | Division 6.1 |
Nickel carbonyl | UN1259 | Division 6.1 |
Pyrophoric liquid, inorganic, n.o.s. | UN3194 | Division 4.2 |
Pyrophoric liquid, organic, n.o.s. | UN2845 | Division 4.2 |
Code of Federal Regulations
773
|
||
Organometallic substance, liquid, pyrophoric. | UN3392 | Division 4.2 |
Organometallic substance, liquid, pyrophoric, water-reactive. | UN3394 | Division 4.2 |
(b)
The hazardous materials listed in paragraph (a) of this section may be transported in a vessel carrying the following Class 1 (explosive) materials as cargo:
(2)
Explosive articles having the following proper shipping names and identification numbers (see column (4) of the § 172.101 table) if designed for lifesaving purposes and their total net explosive mass (weight) does not exceed 50 kg (110 lbs) per vessel:
(3)
Class 1 (explosive) materials in compatibility groups C, D, and E if the total net explosive mass (weight) does not exceed 10 kg (22 pounds) per vessel.
(4)
Explosive articles in compatibility group G, except fireworks and Class 1 (explosive) materials requiring special stowage if the total net explosive mass (weight) does not exceed 10 kg (22 pounds) per vessel.
(c)
When a vessel carrying Class 1 (explosive) materials allowed under paragraph (b) of this section also carries a hazardous material of extreme flammability, that hazardous material must be stowed in a part of the vessel as remote as practicable from the Class 1 (explosive) materials.
[Amdt. 176-30, 55 FR 52696, Dec. 21, 1990, as amended at 66 FR 33438, June 21, 2001; 66 FR 45384, Aug. 28, 2001; 69 FR 76184, Dec. 20, 2004]