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Radioisotop Time Half Lives

Reference data and engineering information about radioisotop time half lives for standard organizations applications.

radioisotoptimehalflives

Overview

Engineering reference data for Radioisotop Time Half Lives in standard organizations.

Key Formulas

ISO Standard

ISO  9001:2015ISO \; 9001:2015

Quality management systems.

ASTM Standard

ASTM  E8ASTM \; E8

Standard test methods for tension testing.

ANSI Standard

ANSI/ASME  B16.5ANSI/ASME \; B16.5

Pipe flanges and flanged fittings.

Variables

SymbolDescriptionUnit
ISOISOInternational Organization for Standardization
ASTMASTMAmerican Society for Testing and Materials
ANSIANSIAmerican National Standards Institute

Half-Life Data

The following table provides half-life values for common radioisotopes across various time units.

102 rows
Radioisotope half-life reference values. Blank cells indicate no value provided for that unit.
Radioisotope
Half-Life(seconds)
Half-Life(minutes)
Half-Life(hours)
Half-Life(days)
Half-Life(years)
110Ag24.6
241Am432.2
243Am7370
198Au6.18
133Ba10.53
140Ba12.75
7Be53.28
210Bi5.01
82Br35.304
14C5715
45Ca162.7
109Cd462
144Ce284.6
36Cl301000
242Cm162.8
244Cm18.11
60Co5271
51Cr27.7
134Cs2065
137Cs30.3
64Cu12.701
55Fe2.73
59Fe44.51
72Ga14.1
68Ge270.8
3H (Tritium)12.32
203Hg46.61
131I8.04
115In440000000000000
192Ir73.83
40K1260000000
42K12.36
85Kr10.73
140La40.27
54Mn312.2
99Mo2.7476
22Na2.605
24Na14.96
63Ni100
237Np2140000
32P14.28
210Pb22.6
103Pd16.99
109Pd13.43
147Pm2.6234
210Po138.38
144Pr17.28
232Pu34
233Pu20.9
234Pu8.8
235Pu25.3
236Pu2.87
237Pu45.2
238Pu87.74
239Pu24110
240Pu6537
241Pu14.4
242Pu375000
243Pu4.956
244Pu82000000
245Pu10.5
246Pu10.85
86Rb18.65
87Rb48800000000
102Rh2.9
106Rh29.9
106Ru1.02
35S87.2
243Sb2.758
46Sc83.81
85Se119.78
32Si160
113Sn115.1
89Sr50.52
90Sr29.1
182Ta114.43
99Tc213000
123Te13000000000000
201Tl72.912
170Tm128.6
222U0.000001
225U0.08
226U0.5
227U1.1
228U9.1
229U58
230U20.8
231U4.2
232U68.9
233U159000
234U245000
235U704000000
236U23400000
237U6.75
238U4460000000
239U23.5
240U14.1
242U16.8
50V140000000000000000
90Y2.67
65Zn243.8
95Zr64.02

Source: engineeringtoolbox.com

Interactive Charts

Radioisotope half-life reference values. Blank cells indicate no value provided for that unit.

References