[ RadSafe ] UN2910 Labeling for EXEMPT Calibration Sources - Yes orNo

[Dan W McCarn]

Dear Group:

 

I just received confirmation from Larry Webb at Spectrum Techniques that
Cary is correct!  

Larry’s calculations were exactly the same as Cary’s.

 

Thank you Larry and Cary!

 

Dan ii

 

  _____  

From: Larry Webb [mailto:larry at spectrumtechniques.com] 
Sent: Wednesday, July 22, 2009 19:59
To: Dan McCarn
Subject: Fw: [ RadSafe ] UN2910 Labeling for EXEMPT Calibration Sources -
Yes orNo

 

Dan,

 

Cary is correct, see attached calulation for mixed source.

 

Larry

 

----- Original Message ----- 

From: Cary <mailto:cary.renquist at ezag.com>  Renquist 

To: Dan W <mailto:hotgreenchile at gmail.com>  McCarn ; radsafe at radlab.nl 

Cc: sales at spectrumtechniques.com 

Sent: Wednesday, July 22, 2009 12:47 PM

Subject: RE: [ RadSafe ] UN2910 Labeling for EXEMPT Calibration Sources -
Yes orNo

 

Your total activity is under the exempt consignment limit for DOT and ICAO:

49 CFR 173.436; IATA 10.4.2.1

The total for all your sources is ~96% of the exempt consignment limit –
i.e. you do not have radioactive material
 

 

(not sure how well the table will survive
)


 

activity
 (uCi)

49cfr173.436 
(uCi)

%


Ba-133

1

27

0.037


Cd-109

1

27

0.037


Co-57

1

27

0.037


Cs-137

0.1

0.27

0.370


Mn-54

1

27

0.037


Na-22

1

27

0.037


Co-60

1

2.7

0.370


Zn-65

1

27

0.037


 

 

 

0.963

 

 

---

Cary Renquist

cary.renquist at ezag.com

 

-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On Behalf
Of Dan W McCarn
Sent: Wednesday, 22 July 2009 06:49
To: radsafe at radlab.nl
Cc: sales at spectrumtechniques.com
Subject: [ RadSafe ] UN2910 Labeling for EXEMPT Calibration Sources - Yes
orNo

 

Dear Group:

 

 

 

As I understand it, exempt calibration sources are covered under the UN2910

labeling guidelines; is this correct? Or are they exempt from labeling as

well? 

 

 

 

I was just informed that one shipping company does not handle any material

labeled as UN2910.

 

 

 

 

 

The sources are labeled on the Spectrum Techniques invoice as CALIBRATION

STANDARDS.  

 

 

 

The activities are as follows:

 

 

 

1.0 uCi Ba-133 ..

 

1.0 uCi Cd-109 ..

 

1.0 uCi Co-57 ..

 

0.1 uCi Cs-137 .. (note that this is the new exempt standard for Cs-137)

 

1.0 uCi Mn-54 ..

 

1.0 uCi Na-22 ..

 

1.0 uCi Co-60 ..

 

1.0 uCi Zn-65 ..

 

 

 

So
 being exempt, do they require labeling?

 

 

 

 

 

Dan ii

 

 

 

--

Dan W McCarn, Geologist

8, Le Buisson Sainte Anne

78860 Saint-Nom-la-Bretèche 

+33.(0).1.74.09.03.09 (Land Line) - France) 

+33.(0).6.47.86.05.25 (Mobile - France) 

+1-505-240-6872 (Skype - New Mexico) 

+353 (0) 76 602 6397  (Skype - Ireland)

 <mailto:HotGreenChile at gmail.com> HotGreenChile at gmail.com (Private email)

 

 

 

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