972                                       LAWS OF MARYLAND                            [Ch. 4

NEW PRIMER AFTER THE STEMMING HAS BEEN WASHED OUT.

(3) RECOVERY OF UNDETONATED EXPLOSIVES;
SUPERVISION.—A CAREFUL SEARCH OF THE WORKING PLACE,
AND, IF NECESSARY, OF THE COAL AFTER IT REACHES THE
TIPPLE, SHALL BE MADE AFTER BLASTING A MISFIRED HOLE
IN ORDER TO RECOVER ANY UNDETONATED EXPLOSIVE. THE
MINE FOREMAN OR HIS DESIGNEE PERSONALLY SHALL
SUPERVISE THE HANDLING OF A MISFIRED SHOT.

REVISOR'S NOTE: This subsection presently appears
as Article 66C, section 627 (a) through
(c), inclusive, of the Code. The only
changes made are in style.

(C) CARDOX.—

(1)     PROVISIONS GOVERNING HANDLING OF
EXPLOSIVES APPLICABLE.—-THE PROVISIONS GOVERNING
HANDLING, STORAGE, AND TRANSPORTATION OF EXPLOSIVES
APPLY TO THE HEATER ELEMENTS OF A CARDOX BLASTING
DEVICE PRICE TO ITS INSTALLATION IN THE SHELL.

(2)        TRANSPORTATION AND STORAGE
UNDERGROUND; CONDITIONS WHEN USED FOR BLASTING. —ANY
CHARGED CARDOX SHELL SHALL BE TRANSPORTED UNDERGROUND
IN AN INSULATED CAR OR INSULATED BOX PLACED IN AN
ORDINARY MINE CAR. IT SHALL BE STORED ON WOODEN
RACKS, BUILT FOR THAT PURPOSE, IN A CROSSCUT OR AN
IDLE ROOM NECK, AT LEAST TEN FEET FROM ANY POWER LINE
AND HAULAGE TRACK. WHERE CARDOX IS USED FOR BLASTING,
THE FOLLOWING RULES APPLY:

RULE 1 - CARDOX SHELL DOES NOT HAVE TO BE
TAMPED OR STEMMED.

RULE 2 - WHEN CARDOX IS FIRED, EVERY PERSON
IN THE VICINITY, INCLUDING THE SHOT
FIBER, SHALL BE AROUND A SECOND
CORNER OR IN AN EQUALLY SAFE PLACE.

RULE 3 - BLASTING CABLE SHALL BE AS LONG AS
NECESSARY TO ASSURE THE SAFETY OF THE
SHOT FIRER, ATTACHED ONLY AFTER THE
CHARGE HAS BEEN PLACED IN THE
BOREHOLE AND MAINTAINED IN GOOD
REPAIR.

RULE 4 - THE CHARGE MAY BE DETONATED WITH A
PERMISSIBLE SHOT-FIRING UNIT.