10
(2) 6 per cent cobalt except permanent magnetic metals with a cobala
content of 25 per cent or lem; or
(3) 1.5 per cent or more columbium or tantalum,
(8) Nickel bearing steels, not elsewhere specified, containing a total of
32 per cent or more of alloying elements;
(c) Precipitation hardening steels, containing 4 per cent or more nickel.
5. Cobalt, as follows:
(a) Raw materials including ores, residue, concentrates, matte, regulu,¦
dross, arsenical crystals, white alloys and red alloys:
(b) Cobalt metal and cobalt-bearing alloys;
(c) Compounds of all types:
(d) Scrap forms of the metals and alloys covered under (b) above.
6. Niobium (Columbium), «a follows:
(0) Raw materials;
(b) Ferro-niobium and ferro-nfobium-tantalum;
(c) Metal and niobium-based alloys containing 60 per cent or more niobim
or 60 per cent or more niobium-tantalum in combination;
(d) Scrap forms of the metal and alloys covered under (c) above.
7. Germanium and germanium compounds,
8. Magnesium base alloys having a content of 0.4 per cent or more of zirconium, or 1.5 per cent or more of thorium, or 1 per cent or more of rare earth metals (cerium mischmetal), as follows:
(0) Crude and semi-fabricated forms:
(b) Scrap forms.
9. Molybdenum, as follows:
(a) Ferro-molybdenum;
(6) Metal and molybdenum-based alloys containing 60 per cent or more
molybdenum;
(c) Tubing and platinum-clad tubing.
10. Nickel, as follows:,
(0) Raw materials;
(b) Metal and nickel-based alloys;
(c) Scrap forms of the metal and alloys covered under (8) above.
11. Tungsten wire and filament, coated or uncoated, cut or unout,
12. Tantalum, as followST
(a) Kaw materials;
(b) Ferro-Lantalum and ferro-tantalum-niobium;
(c) Metal and tantalum-based alloys containing 60 per cent or mut
tantalum or 60 per cent or more tantalum-niobium in combination;
(d) Scrap forms of the metal and alloys covered under (c) above: (e) Seamless pipe and tubing.
13. Titanium, as follows:
(a) Metal and titanium-based alloys containing 70 per cent or more
titati mo
(A) Scrap forms of the metal and alloys covered under (a) above.
GROUP 1.
11
CHEMICALS AND CHEMICAL PRODUCTS.
1. Detonating and priming compositions :
(a) Mercury fulminate, lead azide, lead styphuate, lead thiocyanate, lead dinitcoresorcinate, barium styphnate tetrazine; and detonating of priming compositions (mixtures) containing one or more of these chemicals; (b) Sodium azide.
2. Hydraulic Buida, synthetic, having a viscosity of not more than 4.000 cen-
Uštokes at--54°C and not less than 1.5 centistokes at+ 150°C.
3. Sabilizers for explosives, as follows:
(a) Ethyl and methyl contralites:
(D) Dipheaylamine;
(c) NN-diphenylurea (unsymmetrical diphenylurea).
(d) Methyl-NN-diphenylurea (methyl unsymmetrical diphenylurea); {e}_Ethyl-NN-diphenylurea (ethyl unsymmetrical diphenylurea):
Ethyl phenyl urethane:
(g) Diphenyl urethane;
(A) Diortho tofyl-orelhape:
(02-Nitrodiphenylamine;
p-Nitromethylanilina.
★ Boron, the following:
(a) Boron minerals, cnide and refined;
(6) Boron element (metal), all forms, including grains and powder,
(c) Boron carbide and boron nitride;
( Boron compounds and mixtures, not clsewhere specified, the following:
(1) Boric acids and salts (sodium, potassium, ammonium, magnesium and calcium) and esters of boric acids, crude or refined, not includ- ing perborates;
(2) Boric oxide, boron trifluoride and its complexes, boron trichloride
and its complexes and fluoborates;
(3) Other boron compounds and mixtures containing 10 per cent or more of boron in` combined and for elemental (metallic) form (but not including perborates, metal borates).
5. Dicthylene triamnine.
6. Hydrazine hydrazine hydrate: hydrazine nitrate; unsymmetrical dimethyl
bydrazine.
7. Hydrogen peroxide (50 per cent strength and over).
*. Nitroguanidine,
9. Cuanidine nitrate.
10. Molybdenum disulphide of a purity of 86 per cent or more.
11. Pentacrythritol tetranitrate.
12 Pieric acid (trinitrophenol).
13. Silicone fluids and greases, as follows:
(2) Halogenated silicone fluids;
Lubricating greases capable of operating at temperatures of 108°C or higher and having a drop point to 220°C or higher.
14. Silicon of a purity of 99,9 per cent or more.
15. Tantalum compounds.