Pennsylvania Code › Title 34 - LABOR AND INDUSTRY › Part I - Department of Labor and Industry › Chapter 5 - BLASTING, DEMOLITION, FIREWORKS AND EXPLOSIVES › Subchapter C - FIREWORKS › SPECIFICATIONS › Section 5.64 - Manufacturing

Current through Register Vol. 54, No. 28, July 13, 2024
(a) No stove or
					 exposed flame or electric heating device shall be used in any part of a
					 fireworks plant, except in the boiler room or machine shop, if no fireworks or
					 chemicals are stored therein.
(b)
					 All parts of the buildings in fireworks plants shall be kept clean, orderly and
					 free from accumulation of dust or rubbish. Powder or other explosive materials,
					 when spilled on the floor, shall be immediately cleaned up.
(c) Electric motors, metallic belt fasteners
					 or other devices which might cause a spark due to static electricity shall not
					 be used. Metal tools shall not be utilized where explosive raw materials are
					 being used. Kegs or containers containing explosives shall be opened with
					 wooden or fibre mallets. No metal hammers, screw drivers or other tools shall
					 be used.
(d) Fireworks in a
					 finished or unfinished state shall not be kept or stored in buildings where
					 other fireworks are in the process of manufacture, or where explosive raw
					 material is stored.
(e) All
					 explosive raw materials used in the manufacture of fireworks shall be kept in
					 class A magazines, and each kind of explosive raw material shall be kept in a
					 separate container. Covers shall be provided and used on all kegs or
					 containers. Explosive raw materials used for current work each day may be kept
					 in the factory building if they are kept in class C magazines when not actually
					 being used. The amount remaining each day may be permitted to remain in the
					 class C magazine if the amount does not exceed 100 pounds. The construction
					 specifications for class A and class C magazines are as follows:
(1)
Class A magazines.
In
					 class A magazines the following requirements shall be met:
(i) The magazine shall be constructed of one
					 of the following materials:
(A)
Frame.
The walls shall be constructed of two by four inch studding with a
					 two inch plank outside wall. The inside wall shall be lined with tongued and
					 grooved roofers. The outer wall shall be covered with No. 26 gage galvanized
					 corrugated iron or sheet steel on the outside. The space between the outer and
					 inner wall shall be filled with dry, coarse sand (not crushed stone or gravel).
					 All lumber shall be well-seasoned and free from loose knots, wind shakes, bark
					 edges or decay.
(B)
Brick.
The wall shall be 8 inches in thickness. The bricks shall be of
					 medium soft variety laid in cement mortar containing not over 25%
					 lime.
(C)
Concrete.
The walls shall be 6 inches in thickness constructed of nine parts
					 sand and one part cement, and 1/2 inch face surface of three parts sand and one
					 part cement.
(D)
Tile.
The walls shall be constructed of either 6 inch or 8 inch tile. The
					 spaces in the tile shall be filled with dry, coarse sand (not crushed stone or
					 gravel).