Part
23 Telephones and signaling devices.
24 Single-shot blasting units.
25 Multiple-shot blasting units.
26 Lighting equipment for illuminating underground workings.
SUBCHAPTER E—MECHANICAL EQUIPMENT FOR MINES; TESTS FOR PERMISSIBILITY AND SUITABILITY; FEES
31 Diesel mine locomotives.
32 Mobile Diesel powered equipment for non-coal mines.
33 Dust collectors for use in connection with rock drilling in coal mines.
34 Fire-resistant conveyor belts.
SUBCHAPTER K—PROCEDURES
40 Procedures under Title II, Federal Coal Mine Safety Act of 1952.
SUBCHAPTER L—INTERPRETATIONS
45 Interpretations; Title II, Federal Coal Mine Safety Act of 1952.
SUBCHAPTER A—HELIUM AND COAL
Part 1—Production and Sale of Helium
Sec.
1.1 Definitions.
1.2 Purchase price of helium.
1.3 Service charges.
1.4 Settlements under existing contracts.
1.5 Applications.
1.6 Advances, deposits, bonds.
1.7 Initial advance for purchase of helium.
1.8 Initial advance and guarantee for containers.
1.9 Adjustment of accounts.
1.10 Shipping containers.
1.11 Repurchase rights of Government.
1.12 Reservations with respect to sales and deliveries.
1.13 Determinations of purity and quantity.
1.14 Special restrictions.
1.15 Power of inspection.
1.16 Implied agreements.
1.17 Violations and penalties.
1.18 Purchaser's bonds.
1.19 Cancellation and assignment of contracts.
1.20 Federal agencies not affected.
1.21 Forms.
AUTHORITY: § § 1.1 to 1.21 issued under sec. 8, 43 Stat. 1111, as amended; 60 U. S, C. 164.
SOURCE: § § 1.1 to 1.21 appear at 14 F. R. 7760, Dec. 20, 1949; 15 F. R. 5, Jan. 4, 1950, except as otherwise noted.
§ 1.1 Definitions. (a) "Act" means the act authorizing the conservation, production, exploitation, and sale of helium gas, approved September 1, 1937
(50 Stat. 885; 50 U. 8. C, 181, 163-166).
(b) "Special helium-production fund" means the fund referred to in subsection (C) of section 3 of this act,
(c) "Bureau" means the Bureau of Mines of the Department of the Interior.
(d) "Purchaser" means a person, firm, corporation, association or political authority, other than an agency of the United States Government, purchasing helium from the Bureau for medicai, scientific, or commercial use, or using helium containers supplied by the Bureau.
(e) "Purity of helium" means the percentage by volume of the gaseous element, helium, in a mixture of that element and other gases.
(f) "Contained helium" means the actual quantity, by volume, of helium in a mixture of that element and other
