49 CFR 173.181 - Pyrophoric materials (liquids).

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There are 8 Updates appearing in the Federal Register for 49 CFR 173. View below or at eCFR (GPOAccess)
§ 173.181 Pyrophoric materials (liquids).
When the § 172.101 table specifies that a hazardous material be packaged under this section, only the following non-bulk packagings are authorized:
(a) Specification steel or nickel cylinders prescribed for any compressed gas except acetylene having a minimum design pressure of 1206 kPa (175 psig). Cylinders with valves must be:
(1) Equipped with steel valve protection caps or collars, unless overpacked; or
(2) Overpacked in a wooden box (4C1, 4C2, 4D or 4F); fiberboard box (4G), or plastic box (4H1 or 4H2). Cylinders must be secured to prevent shifting in the box and, when offered for transportation or transported, must be so loaded that pressure relief devices remain in the vapor space of the cylinder. (See § 177.838(h) of this subchapter.)
(b) Wooden boxes (4C1, 4C2, 4D, or 4F) or fiberboard boxes (4G) enclosing not more than four strong, tight metal cans with inner receptacles of glass or metal, not over 1 L (0.3 gallon) capacity each, having positive screwcap closures adequately gasketed. Inner packagings must be cushioned on all sides with dry, absorbent, incombustible material in a quantity sufficient to absorb the entire contents. The strong, tight metal cans must be closed by positive means, not by friction.
(c) Steel drums (1A2) or fiber drums (1G) not exceeding 220 L (58 gallons) capacity each with strong tight inner metal cans not over 4.0 L (1 gallon) capacity each, closed by positive means, not friction.
(1) Inner packagings must have no opening exceeding 25 mm (1 inch) diameter and must be surrounded with noncombustible cushioning material.
(2) Net quantity of pyrophoric liquids may not exceed two-thirds of the rated capacity of the outer drum. For example, a 220 L (58 gallons) outer drum may contain no more than 147 L (39 gallons) of pyrophoric liquids.
(3) Each layer of inner containers must be separated by a metal plate separator in addition to cushioning material.
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66270, Dec. 20, 1991; 65 FR 58629, Sept. 29, 2000; 66 FR 45183, 45380, Aug. 28, 2001; 68 FR 24660, May 8, 2003; 68 FR 61941, Oct. 30, 2003]

Title 49 published on 2013-10-01

The following are only the Rules published in the Federal Register after the published date of Title 49.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-08-06; vol. 79 # 151 - Wednesday, August 6, 2014
    1. 79 FR 46012 - Hazardous Materials: Transportation of Lithium Batteries
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Pipeline and Hazardous Materials Safety Administration
      Final rule.
      Effective Date: August 6, 2014. Voluntary Compliance Date: Voluntary compliance with all amendments is authorized August 6, 2014. Delayed Compliance Date: Unless otherwise specified, compliance with the amendments adopted in this final rule is February 6, 2015. The incorporation by reference of certain publications listed in the rule is approved by the Director of the Federal Register as of August 6, 2014.
      49 CFR Parts 171, 172, 173, 175

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United States Code

Title 49 published on 2013-10-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 49 CFR 173 after this date.

  • 2014-08-25; vol. 79 # 164 - Monday, August 25, 2014
    1. 79 FR 50742 - Hazardous Materials: Harmonization With International Standards (RRR)
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Pipeline and Hazardous Materials Safety Administration
      Notice of proposed rulemaking (NPRM).
      Comments must be received by October 24, 2014.
      49 CFR Parts 171, 172, 173, 175, 176, 178, and 180