Subject to the provisions of Secs. 1(a) and 2 of Item 680 and to the provisions of the DOT's hazardous materials regulations, and unless otherwise provided in separate descriptions of articles, when the following requirements and specifications are complied with, classes or rates applying on articles in 'drums' or 'pails' will also apply on the same articles in fibre drums or pails of the styles described in this section, respectively. Fibre drums and fibre pails may be used as shipping containers for a single movement of articles that remain dry or solid at 100° Fahrenheit (38° Celsius). After initial shipment they must not be used again for shipment of dry or solid articles after contents have been removed, except when containers and closing devices are in such condition that they will protect contents as efficiently as new containers.
    (a) Fibre drums for dry or solid articles must conform with the following requirements and specifications:

		Minimum Requirements
Maximum limit (See Note 5)		Sidewalls	Tops and Bottoms (each)
			Fibreboard		Steel	Plastic
Weight of contents (pounds)	Capacity (gallons) (See Note 6)	Test per square inch (pounds) (See Note 1)	Thickness (inch)	Test (pounds) (See Note 1)	Thickness (U.S. gauge)
60	30	400	.120	300	30	See Notes 2 and 7
			.090	600
115	45	500	.160	400	28	See Notes 2 and 7
			.120	800
			.160	400
150	55	600	.120	800	28	See Note 2
			.120	1000
225	65	700	.180	500	26 (See Note 3)	See Note 2
			.120	1000
300	75	800	.200	550	26 (See Note 3)	See Note 2
			.120 (See Notes 8 and 9)	1000 (See Notes 8 and 9)
400	75	900	.240	600	24 (See Note 4)	See Note 2
			.170 (See Note 10)	1100
550	75	1000	.170 (See Note 10)	1100	24 (See Note 4)	See Note 2
600	75	1200	.170 (See Note 10)	1100	24 (See Note 4)	See Note 2

    (b) Fibre pails for dry or solid articles must conform with the following requirements and specifications:

Maximum limit (See Note 5)			Minimum Requirements tops and bottoms
			Fibreboard		Steel
Weight of contents (pounds)	Capacity (gallons)	Sidewall test per square inch (pounds) (See Note 1)	Thickness (inches)	Test (pounds) (See Note 1)	Thickness (U.S. gauge)
			Bottoms
50	8	400	.100	300	30
			.080	500
			Tops
50	8	400	.190	600	30
			Bottoms
60	8	400	.120	300	30
			.090	600
			Tops
60	8	400	.190	600	30

    (c) Sidewall must be constructed of more than one ply not spirally wound, no single ply to be less than .012 inch in thickness, in the absence of specific waterproof treatment, sized to resist the effect of casual water, and all plies firmly glued together.

OR
       Sidewalls may be constructed of fibreboard of single ply meeting the test requirements in paragraph (a) of this rule, with outer face waterproofed and the ends of the fibreboard forming joint or overlap must extend at least two inches beyond beginning of the overlap and must be firmly glued together throughout entire area of overlap and such overlap must be reinforced by metal rivets, staples or stitches not more than six inches apart, or must be fastened by a double row of metal rivets, staples or stitches not more than two inches apart in each row, or secured by a barbed steel strip not less than gauge 22 and not less than one inch wide extending entire length of joint with barbs pressed through fibreboard and clinched on inside.
    (d) Tops and bottoms must be so fastened to sidewalls as to provide a tight seal and withstand ordinary handling and shipping without showing signs of sifting or loss of any of contents. When tops and bottoms are made of fibreboard having wooden segments reinforcing circumference not less than 1/2 inch thick, and not less than 1 1/4 inches wide at joint between segments, fibreboard may be not less than same test as shell.
    Note 1- Cady or Mullen Testing Method for Fibre Components: Either of the following test methods may be used. When more than a single ply, test shall be determined from the summation of the tests of individual plies, or when test is made on a completed drum, the punctures shall be made from the exterior to the interior surface, in which case the average values for sidewall shall be not less than 80 percent of the values in the above table and the values for fibre tops and bottoms shall be not less than the value in the above table. There shall be a minimum of six tests and the average shall be not less than the prescribed minimum requirements.
    Note 2- Top covers must be constructed of injection-molded high-density polyethylene or polypropylene homopolymer or copolymer and have a minimum thickness of .090 inch. Top covers must have at least two concentric rings of not less than 1/8 inch depth, except when cover is of a minimum thickness of .125 inch, cover may have one concentric ring. Closure must be effected by a lever locking ring of 24 gauge metal minimum; OR by method of covers having the ability of securely snap-lock fitting; OR closure may be of any method, material or design contingent upon a successful diagonal drop series of 3 of 3 drums filled with commodity, or sand as a substitute, onto solid concrete from a height of 30 inches onto the top chime at its weakest part of closure without evidence of leakage or failure.
       Alternatively:
    (a) For net weights not exceeding 225 pounds and capacities not over 20 1/2 gallons, top covers with at least one concentric stiffening ring may have a minimum thickness of .060 inch and be closed with a lever locking ring of 24 gauge metal.
    (b) For net weights not exceeding 600 pounds and capacities not over 75 gallons, top covers with at least one concentric stiffening ring may have a minimum thickness of 0.060 inch and be closed with a lever locking ring of 22 gauge metal.
    (c) For net weights not exceeding 600 pounds and capacities not over 75 gallons, flat-panel high-density polyethylene or polypropylene homopolymer or copolymer top covers with no concentric stiffening rings and a minimum thickness of 0.060 inch may be used with any lever-locking ring, contingent upon a successful diagonal drop series of 3 of 3 drums filled with commodity, or sand/sawdust mixture as a substitute, onto solid concrete from a height of 30 inches onto the top chime at its weakest part of closure, without evidence of leakage or failure.
       Material must meet the following parameters as specified within the referenced American Society for Testing and Materials (ASTM) testing methods:

Injection-Molded High-Density Polyethylene Homopolymers or Copolymers:		Injection-Molded Polypropylene Homopolymers or Copolymers:
Density, ASTM D1505	0.948-0.967	Density, ASTM D1505	0.890-0.915
Melt Index, ASTM D1238 FR-E	1.0-8.0	Melt Flow, ASTM D1238	1.0-8.0
Tensile Strength, ASTM D638	3000 PSI, minimum	Tensile Strength, ASTM D638	3000 PSI, minimum
Heat Resistance Vicat Soft Point	240-260°F	Izod Impact at 32°F, ASTM D256, Method A	1.0-18.0
		Heat Distortion Temperature at 66 PSI, ASTM D648	160-275°F

    Note 3- Bottom may be constructed of not less than 30 U.S. gauge steel when combined with paperboard having a minimum thickness of .110 inch and Mullen test of not less than 400 pounds.
    Note 4- Bottom may be constructed of not less than 30 U.S. gauge steel when combined with paperboard having a minimum thickness of .140 inch and Mullen test of not less than 550 pounds.
    Note 5- The minimum requirements in the above table for sidewall, top and bottom are governed by either the weight of contents in first column or by the capacity in second column, whichever limitations call for the higher minimum requirements.
    Note 6- Fibre drums, not exceeding 75 gallons capacity, convolutely wound, which are vertically straight-sided and generally cylindrical, with convex side, top and bottom perimeters of radius not over 48 inches and with round corners of a radius not less than 1 1/4 inches, conforming to the requirements of Sec. (a) for dry or solid articles (except that the 80 percent provision for sidewall values in Note 1 on Cady and Mullen test shall not apply in testing the convex sides of these drums) or Item 294 for semi-liquids will be accepted when bearing the certificate of the drum maker as required in Item 297.
    Note 7- Fibre drums meeting this rule, not exceeding 20 1/2 gallons capacity, may have covers and bottoms constructed of polypropylene or polyethylene when of a minimum of 70 mils in thickness. Cover and bottom must be securely fastened.
    Note 8- Single-piece fibre bottom headings having a minimum thickness of 0.120 inch and a minimum Mullen Test Value of 1000 psi may be used in the manufacture of drums constructed with bottom chimes and intended for the packaging of up to 300 lbs., provided that the entire 0.120 inch thickness of the bottom heading is enclosed within the crimp of the chime.
    Note 9- Fibre covers having a minimum thickness of 0.120 inch and a minimum Mullen Test Value of 1000 psi may be used in the manufacture of drums constructed with steel chimes and intended for the packaging of up to 300 lbs. net contents.
    Note 10- Fibre covers having a minimum thickness of 0.170 inch and a minimum Mullen Test Value of 1100 psi may be used in the manufacture of drums constructed with steel chimes and intended for the packaging of up to 600 lbs. net contents.