Re: RE: Transport Index

[LIPTONW@dteenergy.com]

Don't guess at this, read the ******* regulations: 
 
49 CFR 173.403: 
 
"Transport index (TI) means the dimensionless number (ROUNDED UP TO THE NEXT 
TENTH) [emphasis mine] placed on the label of a package to designate the 
degree of control to be exercised by the carrier during transportation.  The 
transport index is determined as follows: 
 
"(1) For nonfissile material packages, the number determined by multiplying 
the maximum rdiation level in milliSievert(s) per hour at one meter (3.3
feet) 
from the external surface of the package by 100 (equivalent to the maximum 
radiation level in millirem per hour at one meter (3.3 feet)); or 
 
"(2) For fissile material packages, the number determined by multiplying the 
maximum radiation level in millisSievert per hour at one meter (3.3 feet)
from 
any external surface of the package by 100 ... or, for criticality control 
purposes, the number obtained by dividing 50 by the allowable number of 
packages which may be transported together, whichever number is larger." 
 
There is an exception to this, in 49 CFR 172.403(c), footnote 2:  "If the 
measured TI is not greater than 0.05, the value mayb e considered to be
zero." 
 
The opinions expressed are strictly mine. 
It's not about dose, it's about trust. 
 
Bill Lipton 
liptonw@dteenergy.com 
 
 
You wrote: 
 
>The transport index (TI) is the dose rate in mrem/hour measured at one
meter 
>from the external surface of the package.  Less than one mrem is, of
course, 
>reported, but not to more than two decimal places. 
 
>Ruth F. Weiner 
>Sandia National Laboratories  
>MS 0718, POB 5800 
>Albuquerque, NM 87185-0718 
>505-844-4791; fax 505-844-0244 
>rfweine@sandia.gov
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