§ 178.88-9

Defective containers.

(a) Leaks and other defects to be repaired by method used in constructing container, not by soldering.

§ 178.88-10 Marking.

(a) Marking on each container by embossing on head with raised marks, or by embossing or die stamping on footring on drums equipped with footrings, or on metal plates securely attached to drum by brazing or welding not less than 20 percent of the perimeter as follows:

(1) DOT-5K. This mark shall be understood to certify that the container complies with all specification requirements.

(2) Name or symbol (letters) of maker; this must be recorded with the Bureau of Explosives.

(3) Gauge of metal in thinnest part, rated capacity in gallons, and year of manufacture (for example, 14-55-50). When gauge of metal in body differs from that in head, both must be indicated with slanting line between and with gauge of body indicated first (for example 14/12-55-50 for body 14 gauge and head 12 gauge).

[29 F.R. 18893, Dec. 29, 1964, as amended by Order 66, 30 F.R. 5753, Apr. 23, 1965] § 178.88-11

Size of markings.

(a) Size of markings (minimum): 1⁄2" high for 33-gallon or less, 34" for over 33 and not over 55 gallons, and 1'' for over 55 gallons.

§ 178.88-12 Type tests.

(a) Samples, taken at random and closed as for use, must be capable of withstanding prescribed tests without leakage. Tests to be made of each type and size by each company starting production and to be repeated every 12 months, except as provided in subparagraph (3) of this paragraph. Samples last tested to be retained until further tests are made or for 2 years, whichever period is shorter. The type tests are as follows:

(1) Test by dropping, filled with water to 98 percent capacity, from height of 6 feet onto solid concrete so as to strike diagonally on chime, or when without chime seam, to strike on other circumferential seam; also additional drop test on any other parts which might be considered weaker than the chime. Closing

devices and other parts projecting beyond chime or rolling hoops must also be capable of withstanding this test.

(2) Hydrostatic pressure test of 80 pounds per square inch sustained for 5 minutes.

(3) Periodic drop and hydrostatic tests are not required where container has satisfactorily met prescribed tests at the original start of production. Batisfactory test results must be obtained on samples of subsequent containers that have been altered in design or construction. Samples so tested must be retained until further tests are made or for 2 years, whichever period is shorter. [29 F.R. 18893, Dec. 29, 1964, as amended by Order 66, 30 F.R. 5753, Apr. 23, 1965] § 178.88-13 Leakage test.

(a) Each container shall be tested, with seams under water or covered with soapsuds or heavy oil, by interior air pressure of at least 15 pounds per square inch. Equally efficient means of testing are authorized upon demonstration and proof of satisfactory tests to representative of Bureau of Explosives. Leakers shall be rejected or repaired and retested. § 178.89 Specification 5L; steel barrels or drums. Removable authorized.

head

containers not

§ 178.89-1 Compliance.

(a) Required in all details.

§ 178.89-2 Rated capacity.

(a) Rated capacity as marked, see § 178.89-9(a) (3). Actual capacity shall be not less than rated (marked) capacity plus 2 percent, nor greater than rated capacity plus 2 percent plus 1 quart.

§ 178.89-3 Composition.

(a) Sheets for body and heads to be low carbon, open hearth or electric steel. § 178.89-5 Seams.

(a) Body seams welded.

(b) Head and chime seams welded or double-seamed.

(c) Flanged spout for filling and emptying container welded in place or attached in a manner approved by Bureau of Explosives.

§ 178.89-6 Parts and dimensions.

(a) Parts and dimensions as follows: