[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: 30CFR15.5]

[Page 82-83]
 
                       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. 15.5  Test samples.

    (a) Submission of test samples. (1) The applicant shall not submit 
explosives or sheathed explosive units to be tested until requested to 
do so by MSHA.
    (2) The applicant shall submit 70 pounds of 1\1/4\-inch diameter 
explosives and additional cartridges in the amount of 3200 divided by 
the length in inches, except for cartridges 12, 20 and greater than 36 
inches long. The applicant shall submit 70 pounds and additional 
cartridges in the amount of 3800 divided by the length in inches for 
cartridges 12, 20 and greater than 36 inches long.
    (3) If approval is requested for cartridges in diameters less than 
1-\1/4\ inches, the applicant shall submit a number of cartridges equal 
to 1800 divided by the length in inches, except for cartridges 12, 20 
and greater than 36 inches long. The applicant shall submit cartridges 
in the amount of 2200 divided by the length in inches for cartridges 12, 
20 and greater than 36 inches long.
    (4) If approval is requested for cartridges in diameters larger than 
1-\1/4\ inches, the applicant shall submit an additional 10 cartridges 
of each larger diameter.
    (5) If approval is requested for cartridges in more than one length, 
the applicant shall submit an additional 10 cartridges for each 
additional length and diameter combination.
    (6) Each applicant seeking approval of sheathed explosive units 
shall submit 140 units.
    (b) Condition and composition. Explosives and sheathed explosive 
units will not be tested that--
    (1) Contain chlorites, chlorates, or substances that will react over 
an extended time and cause degradation of

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the explosive or sheathed explosive unit;
    (2) Are chemically unstable;
    (3) Show leakage;
    (4) Use aluminum clips to seal the cartridge;
    (5) Contain any combination of perchlorate and aluminum;
    (6) Contain more than 5 percent perchlorate; or
    (7) Contain any perchlorate and less than 5 percent water.
    (c) Storage. Explosives and sheathed explosive units shall be stored 
in a magazine for at least 30 days before gallery tests are conducted.