49 CFR § 173.425
Table of activity limits—excepted quantities and articles
November 18, 2020
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
Open Table
| Nature of contents | Instruments and articles | Limited quantity package limits1 | |
|---|---|---|---|
| Limits for each instrument or article1 | Package limits1 | ||
| 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: | |||
| Tritium2 | 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 |
1For mixtures of radionuclides see §173.433(d).
2These 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]
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