[ RadSafe ] Limited Quantity

Tung, Enoch Enoch.Tung at PERKINELMER.COM
Tue Jan 4 09:44:43 CST 2011

Hi All,


Quick questions about LQ.


As per 10 CFR 49, limited quantities for liquid (normal form) is 10^-4 *


Now in table 173.435 there are some entries that show A2 (and A1) values
to be "unlimited".

ie.  I-129, Mn-53, Ni-59, etc.


Does this mean the limited quantity for those isotopes are also

In effect, there is no activity limit to ship those isotopes as Excepted
Package, as long as surface dose rate and TI criteria are met?







Enoch Tung | Health Physicist

PerkinElmer | For the Better

enoch.tung at perkinelmer.com

Phone:  +1 617.350.9068   |   Fax:  +1 617.350.9567   |   Mobile:   +1

549 Albany St., Boston, MA 02118 USA 


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