# Code of Federal Regulations/Title 30/1959/Chapter I/Part 11

From the U.S. Government Printing Office on Google Books, revised as of January 1, 1959. (Commons file)
Part 11—Self-Contained Breathing Apparatus
Sec.
11.1 Definition of "permissible."
11.2 Conditions under which apparatus will be tested.
11.3 Fees for testing.
11.4 General requirements.
11.5 Construction.
11.6 Character and general description of tests.
11.7 Detailed procedure of tests.
11.8 Approval of regenerators.
11.9 Notification of approval or disapproval.
11.10 Approval plates and markings for permissible apparatus and for approved supplemental parts.
11.11 Changes subsequent to approval.
11.12 Withdrawal of approval.
AUTHORITY: § 11.1 to 11.12 issued under sec. 5, 96 Stat. 370, as amended, sec. 212, 65 Stat. 709; 80 0. 8. C. 1, 482. Interpret or apply secs. 2, 9, 86 Stat. 870, as amended; 80 U. S. C. 3, 5.
SOURCE: § 11.1 to 11.12 contained in Schedule 13D, 21 F. R. 7234, Sept. 23, 1956.
§ 11.1 Definition of "permissible." The Bureau of Mines considers a self-contained breathing apparatus to be permissible for use in irrespirable and poisonous gases if all the details of construction and materials are the same in all respects as those of a self-contained breathing apparatus that has passed the tests for safety, practicability, and efficiency in accordance with standards established by the Bureau and described in this part.
§ 11.2 Conditions under which apparatus will be tested. The conditions under which the Bureau of Mines will examine and test 8 self-contained breathing apparatus to establish its permissibility follow:
(a) (1) Application for inspection. examination, and testing shall be made in duplicate to the Central Experiment Station, Bureau of Mines, 4800 Forbes Street, Pittsburgh 13, Pa., and shall be accompanied by (i) a check, bank draft, or money order (see § 11.3) payable to the order of the United States Bureau of Mines; (H) a complete written description of the apparatus in duplicate; and (iii) a set of drawings in duplicate showing full details of construction of the apparatus. If an apparatus operates with a regenerator, the application shall be accompanied by a complete written description of the regenerator and a set of drawings showing full details of its construction, all in duplicate. The application shall state, among other things, whether the apparatus is ready to be marketed.
(2) Applicants, manufacturers. their representatives may visit or communicate with the Central Experiment Station, Bureau of Mines, 4800 Forbes Street, Pittsburgh 13, Pa., to obtain criticism of proposed designs or to dis- cuss the requirements covering the approval of self-contained breathing apparatus. No charge is made for such consultation.
(b) The examination, inspection, and test shall be made at the Central Experiment Station, Bureau of Mines, Pittsburgh, Pa.
(c) The applicant, submitting the self-contained breathing apparatus for inspection, examination, and test, will be required to provide two sets of apparatus, prepaid to the Central Experiment Station, Bureau of Mines, 4800 Forbes Street, Pittsburgh 13, Pa. If the apparatus successfully passes all the tests and requirements specified in this section, one set of the apparatus will be retained by the Bureau of Mines as a laboratory exhibit and the other set will be returned to the applicant. If the apparatus does not pass all of the Bureau's tests or requirements, both sets of apparatus will be returned to the applicant at his expense. ​ (d) Each self-contained breathing apparatus submitted for test shall have marked on it in a distinct manner the name and address of the manufacturer and the name, letter, or number by which the apparatus is designated for trade purposes.
(e) (1) For tests of self-contained oxygen breathing apparatus utilizing a supply of compressed gaseous oxygen, the oxygen will be supplied by the Bureau of Mines and will be of the purity specified in contracts by the Bureau for use in its own self-contained breathing apparatus, namely, at least 98 percent oxygen and the remainder nitrogen. The applicant shall supply such regenerators or regenerating materials as are necessary to operate the apparatus during the tests as hereinafter described.
(2) For tests of self-contained breathing apparatus utilizing a supply of compressed air, the applicant shall supply the compressed air (in suitable containers) necessary in making the hereafter described tests. The compressed air shall not contain any amount of gaseous, liquid, or solid substance that is harmful to a wearer of the apparatus under any condition of use. The applicant shall furnish a written statement setting forth the method used to compress the air and the controls used to prevent contamination of the compressed air by any gaseous, liquid, or solid substance that is harmful to a human being.
(3) For tests of self-contained breathing apparatus utilizing a supply of oxygen that is generated by a chemical reaction when using the apparatus, the applicant shall supply the oxygen generating chemicals (in suitable containers) in amounts necessary to conduct the hereafter described tests. The oxygen shall not contain any amount of gaseous, liquid, or solid substance that is harmful to a wearer of the apparatus under any condition of use. The applicant shall furnish a written statement setting forth the method by which the oxygen is generated and the chemical reaction involved for this purpose during the use of the apparatus. Furthermore, this statement shall set forth how the chemicals in the oxygen generator have been manufactured so as to prevent contamination of the oxygen by any gaseous, liquid , or solid substance in amounts or proportions harmful to a human being.
(f) On receipt of the self-contained breathing apparatus for which application has been made for examination, inspection, or test, the applicant will be notified whether the apparatus meets the requirements of these regulations and whether additional spare parts are necessary to facilitate making a proper test of the apparatus. The applicant will be required to provide additional parts, if needed, and also to alter the apparatus, if necessary.
(g) No self-contained breathing apparatus will be tested unless it is in the complete form in which it is to be marketed.
(h) As soon as possible after the formal application for the test and the apparatus to be tested have been received, the applicant will be notified of the date on which the test will begin and if any additional material is required.
(i) Tests will be made in the order of receipt of application, provided that the applicant has furnished the necessary apparatus and material.
(j) Self-contained breathing apparatus in course of development may be submitted by manufacturers and inventors for preliminary test or inspection to ascertain defective construction or misapplication of safety principles. The Bureau will determine the nature of such test or inspection and the fee, if any. If a fee is to be charged, it shall be paid before the test or inspection is undertaken.
(k) No one shall be present during any part of the formal investigation, conducted by the Bureau, that leads to approval except the necessary Government personnel, representatives of the applicant, and such other persons as may be mutually agreed upon by the applicant and the Bureau. When a self-contained breathing apparatus is approved as permissible, the Bureau will announce that such approval has been granted and may thereafter conduct from time to time, in its discretion, public demonstrations of the tests of approved self-contained breathing apparatus. Those who attend any part of the investigation, or any public demonstration, shall be present solely as observers; the conduct of the investigation and of any public demonstration shall be controlled wholly by the Bureau's personnel. The results of chemical analyses and all information contained in the drawings, specifications.