CFR > Title 49 - Transportation > SUBTITLE B—Other Regulations Relating to Transportation > CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (Parts 105–199) > SUBCHAPTER C—HAZARDOUS MATERIALS REGULATIONS (Parts 171–181) > PART 173—SHIPPERS—GENERAL REQUIREMENTS FOR SHIPMENTS AND PACKAGINGS > SUBPART I—Class 7 (Radioactive) Materials (§173.401 to §173.477) > 173.425—Table of activity limits—excepted quantities and articles.

173.425—Table of activity limits—excepted quantities and articles.

The limits applicable to instruments, articles, and limited quantities subject to exceptions under §§ 173.421 and 173.424 are set forth in table 4 as follows:
Table 4—Activity Limits for Limited Quantities, Instruments, and Articles
Nature of contents Instruments and articles Limited quantity package limits 1
Limits for each instrument or article 1 Package limits 1
Solids:
Special form 10−2 A1 A1 10−3 A1
Normal form 10−2 A2 A2 10−3 A2
Liquids:
Tritiated water:
<0.0037 TBq/L (0.1 Ci/L) 37 TBq (1,000 Ci)
0.0037 TBq to 0.037 TBq/L (0.1 Ci to 1.0 Ci/L) 3.7 TBq (100 Ci)
>0.037 TBq/L (1.0 Ci/L) 0.037 TBq (1.0 Ci)
Other Liquids 10−3 A2 10−1 A2 10−4 A2
Gases:
Tritium 2 2 × 10−2 A2 2 × 10−1 A2 2 × 10−2 A2
Special form 10−3 A1 10−2 A1 10−3 A1
Normal form 10−3 A2 10−2 A2 10−3 A2
1 For mixtures of radionuclides see § 173.433(d) .
2 These values also apply to tritium in activated luminous paint and tritium adsorbed on solid carriers.
[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended by Amdt. 173-244, 61 FR 20751, May 8, 1996; 63 FR 52849, Oct. 1, 1998; 65 FR 58630, Sept. 29, 2000; 66 FR 45383, Aug. 28, 2001; 69 FR 3676, Jan. 26, 2004]