Table 4-2. Fissile Material Content and Transport Index for Specification 6J or 17H Packages

TM 55-315

Table 4-2. Fissile Material Content and Transport Index for Specification 6J or 17H Packages

(h) The maximum weight of contents, including internal packaging, may not exceed 90 kilograms (200

pounds), with the fissile material content limited as shown in table 4-2.

(7) Any metal cylinder that meets the performance requirements of Type A quantity (49 CFR 173.415) and

Type A general packaging, specification 7A (49 CFR 173.350), may be used as a Fissile Class I package for transporting

residual "heels" of enriched solid-uranium hexafluoride without a protective overpack, per table 4-3.

(8) DOT specifications 20PF-1, 20PF-2, or 20PF-3 (49 CFR 178.120) or specification 21PF-1 or 21PF-2 (49

CFR 178.121) phenolic-foam insulated overpack with snug-fitting inner metal cylinders, may be used for materials

prescribed in d(5) below.

d. Type B Quantities of Fissile Material (49 CFR 173.417(b). Except as provided in a above, fissile materials

containing more than Type A quantities shall be identified as Type B quantities and shall be packaged in one of the

following packagings:

(1) DOT specification 6M (49 CFR 178.103), metal packaging authorized only for uranium-235, plutonium-

239, or plutonium-241, as metal, oxide, or compounds that do not decompose at temperatures up to 149 (300 ).

Radioactive decay heat output may not exceed 5 watts. Radioactive materials in normal form shall be packaged in one

or more tightly sealed metal cans or polyethylene bottles within a DOT specification 2R container (49 CFR 178.34).

Packages are authorized as Fissile Classes II and III with materials limited per table 4-4.

(2) DOT specification 6M (49 CFR 178.104), metal packaging authorized only for solid radioactive materials

that will not decompose at temperatures up to 121 (250 ). Radioactive decay heat output may not exceed 10 watts.

Radioactive material in other than special form shall be packaged in one or more tightly sealed metal cans or

polyethylene bottles within a DOT specification 2R container (49 CFR 178.34).

(a) Fissile Class I. Fissile Class I packages

Table 4-3. Allowable Content of Uranium Hexafluoride (UF6) "Heels" in a Specification 7A Cylinder

4-7