Source: https://www.law.cornell.edu/cfr/text/49/173.21
Timestamp: 2017-06-29 14:25:51
Document Index: 249783084

Matched Legal Cases: ['art 173', '§ 172', '§ 173', '§ 171', '§ 173', '§ 173', '§ 173', '§ 171', '§ 177', '§ 171', '§ 173', '§ 173', '§ 171', '§ 173', '§ 173', 'art 171', '§ 175', '§ 173']

49 CFR 173.21 - Forbidden materials and packages. | US Law | LII / Legal Information Institute
CFR › Title 49 › Subtitle B › Chapter I › Subchapter C › Part 173 › Subpart B › Section 173.21 49 CFR 173.21 - Forbidden materials and packages.
Link to an amendment published at 82 FR 15876, Mar. 30, 2017.
(a) Materials that are designated “Forbidden” in Column 3 of the § 172.101 table.
(b) Forbidden explosives as defined in § 173.54 of this part.
(f) A package containing a material which is likely to decompose with a self-accelerated decomposition temperature (SADT) or polymerize with a self-accelerated polymerization temperature (SAPT) of 50 °C (122 °F) or less, with an evolution of a dangerous quantity of heat or gas when decomposing or polymerizing, unless the material is stabilized or inhibited in a manner to preclude such evolution. The SADT and SAPT may be determined by any of the test methods described in Part II of the UN Manual of Tests and Criteria (IBR, see § 171.7 of this subchapter).
§ 173.21 Table - Derivation of Control and Emergency Temperature
SADT/SAPT 1
SADT/SAPT ≤20 °C (68 °F)
20 °C (36 °F) below SADT/SAPT
10 °C (18 °F) below SADT/SAPT.
20 °C (68 °F) SADT/SAPT ≤35 °C (95 °F)
15 °C (27 °F) below SADT/SAPT
35 °C (95 °F) SADT/SAPT ≤50 °C (122 °F)
10 °C (18 °F) below SADT/SAPT
5 °C (9 °F) below SADT/SAPT.
50 °C (122 °F) SADT/SAPT
1 Self-accelerating decomposition temperature or Self-accelerating polymerization temperature.
(i) The provisions concerning polymerizing substances in paragraph (f) will be effective until January 2, 2019.
(2) For self-reactive materials listed in § 173.224(b) table control and emergency temperatures, where required are shown in Columns 5 and 6, respectively. For organic peroxides listed in The Organic Peroxides Table in § 173.225 control and emergency temperatures, where required, are shown in Columns 7a and 7b, respectively.
(3) Refrigeration may be used as a means of stabilization only when approved by the Associate Administrator. Approvals issued by the Bureau of Explosives are no longer valid (see § 171.19 of this subchapter). Methods of stabilization approved by the Associate Administrator are as follows: (i) For highway transportation:
(E) The vehicle operator shall maintain the written temperature-control procedures, and the written record of temperature measurements specified in paragraph (f)(3)(i)(C) of this section, if applicable, in the same manner as specified in § 177.817 of this subchapter for shipping papers.
(ii) For transportation by vessel, shipments are authorized in accordance with the control temperature requirements in 7.3.7 of the IMDG Code (IBR, see § 171.7 of this subchapter).
(2) When tests are required to evaluate the performance of a package under the provisions of this paragraph, the testing must be done or approved by one of the agencies specified in § 173.56.
(i) Except for a package containing a lighter design sample that meets the requirements of § 173.308(b)(2), a package containing a lighter (see § 171.8 of this subchapter) containing a Division 2.1 material, of a design that has not been examined and successfully tested by an authorized person under the criteria specified in § 173.308(a)(4) or, a lighter design containing a Class 3 material, that has not been approved by the Associate Administrator.
(j) An organic peroxide of the “ketone peroxide” category which contains more than 9 percent available oxygen as calculated using the equation in § 173.128(a)(4)(ii). The category, ketone peroxide, includes, but is not limited to:
(k) Notwithstanding any other provision of this subchapter, including subpart C of part 171 and 175.10(a)(2) of this subchapter, an oxygen generator (chemical) as cargo on a passenger-carrying aircraft. This prohibition does not apply to an oxygen generator for medical or personal use of a passenger that meets the requirements of § 175.10(a)(7) of this subchapter.
[Amdt. 173-224, 55 FR 52609, Dec. 21, 1990] Editorial Note:
For Federal Register citations affecting § 173.21, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.fdsys.gov.
49 CFR 173.12 — Exceptions for Shipment of Waste Materials.
49 CFR 173.4 — Small Quantities for Highway and Rail.
49 CFR 173.4a — Excepted Quantities.
49 CFR 173.21 — Forbidden Materials and Packages.
49 CFR 173.4b — De Minimis Exceptions.
49 CFR 173.128 — Class 5, Division 5.2 - Definitions and Types.
49 CFR 173.224 — Packaging and Control and Emergency Temperatures for Self-Reactive Materials.
49 CFR 173.124 — Class 4, Divisions 4.1, 4.2 and 4.3 - Definitions.
49 CFR 171.8 — Definitions and Abbreviations.
49 CFR 173.36 — Hazardous Materials in Large Packagings.