2334

LAWS OF MARYLAND

Ch. 364

(D)(3) AN EXPLOSIVE CHEMICAL WHICH CAUSES A SUDDEN, ALMOST
INSTANTANEOUS RELEASE OF PRESSURE, GAS, AND HEAT WHEN SUBJECTED
TO SUDDEN SHOCK, PRESSURE OR HIGH TEMPERATURE;

(E)(4) A FLAMMABLE CHEMICAL THAT FALLS INTO ONE OF THE
FOLLOWING CATEGORIES:

(1)(I) A FLAMMABLE AEROSOL THAT, WHEN TESTED BY THE
METHOD DESCRIBED IN 16 CFR 1600.45, YIELDS A FLAME PROJECTION
EXCEEDING 18 INCHES AT FULL VALVE OPENING, OR A FLASHBACK (A
FLAME EXTENDING BACK TO THE VALVE) AT ANY DEGREE OF VALVE
OPENING;

(2)(II) A FLAMMABLE GAS THAT:

(I)l. AT AMBIENT TEMPERATURE AND PRESSURE,
FORMS A FLAMMABLE MIXTURE WITH AIR AT A CONCENTRATION OF 13
PERCENT BY VOLUME OR LESS; OR

(II)2. AT AMBIENT TEMPERATURE AND PRESSURE,
FORMS A RANGE OF FLAMMABLE MIXTURES WITH AIR WIDER THAN 12
PERCENT BY VOLUME, REGARDLESS OF THE LOWER LIMIT; OR

(III)3. GASEOUS AMMONIA;

(3)(III) EXCEPT ANY MIXTURE HAVING COMPONENTS WITH
FLASH POINTS OF 100 DEGREES FAHRENHEIT OR HIGHER, THE TOTAL OF
WHICH MAKE UP 99 PERCENT OR MORE OF THE TOTAL VOLUME OF THE
MIXTURE, A FLAMMABLE LIQUID HAVING A FLASH POINT BELOW 100
DEGREES FAHRENHEIT; OR

(4)(IV) A FLAMMABLE SOLID THAT IS LIABLE TO CAUSE
FIRE THROUGH FRICTION, ABSORPTION OF MOISTURE, SPONTANEOUS
CHEMICAL CHANGE, OR RETAINED HEAT FROM MANUFACTURING OR
PROCESSING, OR WHICH CAN BE IGNITED READILY AND WHEN IGNITED
BURNS SO VIGOROUSLY AND PERSISTENTLY AS TO CREATE A SERIOUS
HAZARD. A CHEMICAL SHALL BE CONSIDERED TO BE A FLAMMABLE SOLID,
IF, WHEN TESTED BY THE METHOD DESCRIBED IN 16 CFR 1500.44, IT
IGNITES AND BURNS WITH A SELF-SUSTAINED FLAME AT A RATE GREATER
THAN ONE-TENTH OF AN INCH PER SECOND ALONG ITS MAJOR ACCESS.
AXIS;

(F)(5) AN ORGANIC PEROXIDE COMPOUND THAT CONTAINS THE
BIVALENT-O-O-STRUCTURE AND WHICH MAY BE CONSIDERED TO BE A
STRUCTURAL DERIVATIVE OF HYDROGEN PEROXIDE WHERE ONE OR BOTH OF
THE HYDROGEN ATOMS HAS BEEN REPLACED BY AN ORGANIC RADICAL;

(C)(6) A CHEMICAL OXIDIZER THAT INITIATES OR PROMOTES
COMBUSTION IN OTHER MATERIALS, THEREBY CAUSING FIRE EITHER OF
ITSELF OR THROUGH THE RELEASE OF OXYGEN OR OTHER GASES;

(H)(7) A PYROPHORIC CHEMICAL THAT WILL IGNITE SPONTANEOUSLY
IN AIR AT A TEMPERATURE OF 130 DEGREES FAHRENHEIT OR BELOW;