Panasonic PT-DZ12000U Operating Instructions Manual page 116

STCs = Special Tritium Compounds
1 = Water (HTO) form
2 = Elemental (HT form)
3 = water and elemental
4 = Insoluble
5 = Soluble
6 = Vapor form
7 = As CO
8 = As CO
2
9 = compounds
10 = Vapor
11 = Inorganic
12 = Carbonyl
13 = 66 min half-life
14 = 122 min half-life
15 = 69 min half-life
16 = 5 h half-life
17 = 16 min half-life
18 = 6 d half-life
19 = 9 h half-life
20 = 10 min half-life
For any radionuclide not listed in these tables with decay
mode other than alpha emission or spontaneous fission and
with radioactive half-life less than two hours, the DAC value
shall be 6E-06 uCi/mL (2E+04 Bq/M ).
The DAC values listed for both 10CFR20 and 10CFR835
were truncated after being calculated from the appropriate
ALI values. For 10CFR835 the ALI values were taken from
ICRP 68.
21 = Methyl
22 = 12 h half-life
23 = 34 yr half-life
24 = 24 h half-life
25 = 5 h half-life
26 = 64 h half-life
27 = 12 h half-life
28 = 16 h half-life
29 = 2 h half-life
30 = 3 h half-life
31 = 1 h half-life
32 = Organic
33 = radon-220 with short-
lived progeny
34 = with progeny removed
35 = with progeny present
36 = 1E+05 yr half-life
37 = 22 h half-life
38 = half-life less than
2 hours
3
105