[Code of Federal Regulations]
[Title 30, Volume 1]
[Revised as of July 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 30CFR15.2]

[Page 81]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 15--REQUIREMENTS FOR APPROVAL OF EXPLOSIVES AND SHEATHED EXPLOSIVE UNITS--Table of Contents
 
                      Subpart A--General Provisions
 
Sec. 15.2  Definitions.

    The following definitions apply in this part.
    Applicant. An individual or organization that manufactures or 
controls the production of an explosive or an explosive unit and that 
applies to MSHA for approval of that explosive or explosive unit.
    Approval. A document issued by MSHA which states that an explosive 
or explosive unit has met the requirements of this part and which 
authorizes an approval marking identifying the explosive or explosive 
unit as approved as permissible.
    Explosive. A substance, compound, or mixture, the primary purpose of 
which is to function by explosion.
    Extension of approval. A document issued by MSHA which states that 
the change to an explosive or explosive unit previously approved by MSHA 
under this part meets the requirements of this part and which authorizes 
the continued use of the approval marking after the appropriate 
extension number has been added.
    Minimum product firing temperature. The lowest product temperature 
at which the explosive or explosive unit is approved for use under this 
part.
    Post-approval product audit. Examination, testing, or both, by MSHA 
of approved explosives or explosive units selected by MSHA to determine 
whether they meet the technical requirements and have been manufactured 
as approved.
    Sheath. A chemical compound or mixture incorporated in a sheathed 
explosive unit and which forms a flame inhibiting cloud on detonation of 
the explosive.
    Sheathed explosive unit. A device consisting of an approved or 
permissible explosive covered by a sheath encased in a sealed covering 
and designed to be fired outside the confines of a borehole.
    Test detonator. An instantaneous detonator that has a strength 
equivalent to that of a detonator with a base charge of 0.40-0.45 grams 
PETN.

[FR 46761, Nov. 18, 1988; 54 FR 351, Jan. 5, 1989]