[Code of Federal Regulations]

[Title 30, Volume 1]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 30CFR15.5]



[Page 86-87]

 

                       TITLE 30--MINERAL RESOURCES

 

  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR

 

PART 15_REQUIREMENTS FOR APPROVAL OF EXPLOSIVES AND SHEATHED EXPLOSIVE vUNITS--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.