49 C.F.R. § 173.425

Current through September 30, 2024
Section 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 articlesLimited quantity package limits1
Limits for each instrument or article1 Package limits1
Solids:
Special form10-2 A1A110-3 A1
Normal form10-2 A2A210-3 A2
Liquids:
Tritiated water:
[LESS THAN]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)
[GREATER THAN]0.037 TBq/L (1.0 Ci/L)0.037 TBq (1.0 Ci)
Other Liquids10-3 A210-1 A210-4 A2
Gases:
Tritium22 * 10-2 A22 * 10-1 A22 * 10-2 A2
Special form10-3 A110-2 A110-3 A1
Normal form10-3 A210-2 A210-3 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.

49 C.F.R. §173.425

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