Re Special Form Certificates Applied to Old Sources.

[Emil Murat <kerrembaev@yahoo.com>]

Mike,

This is one of those cases.

1. Nobody thinks, what will be in fifteen years, when
they are buying a gauge ...

2. How much does it cost to change containers?
 
3. May be it is the time to buy a new gauge? 

4. I would suggest you in any situation to do
ADDITIONAL leak tests to check and to show.

5.1. To check that if it is still sealed alright.

5.2  To show your regulator that you are aware about
the problem.

6. Not to offend the other side of the aisle:

Regulators are also humans and they can understand
your problem and may be you will get a break.

7. Or just buy a new gauge.

8. If I were you, I would buy a new, if I had the
money, of course.

9. For mind sake, just do not repeat the mistake of
you predecessors and buy gauge with "Unlimited
millage"


I have a question of my own:

Is there a technical reason for 15 years limit on
certificate or it
is just a business driven decision?

They won't sell too many gauges if Y'all could use
them for too long. Right?




You wrote:

>>>>
Morning All,
                            Could you assist me by
commenting  on the US
situation involving the transport of Special Form
sources..
Radioactive sources with activities which exceed the
A2 value, which are
enclosed in a capsule, the design of which is approved
as Special Form can
be transported  in a type A container. For the
purposes of complying with
the transport regulation must a type B container be
used if :
1 The Special Form Certificate has expired.
2. If the manufacturer has not imposed a Recommended
Working Life(RWL) but
the source is more than 15 years old.
3. If the source is older than the manufacturers AWL.
Can a source older than the RWL be transported as
Special Form  in a Type A
container when the capsule Special Form approval
certificate is current and
the source has been immersion test according to the
appropriate ISOstandard.
If you intend to transport pre 1985 nuclear density
gauges such as Troxler
or Campbell Pacific must the 50 mCi Am 241 Be neutron
sources be removed
from the base of the gauge and transferred to a type B
container.
Thanks for your comments.Best Regards,Mike
Malaxos.Radiation Safety Services
Mike@radiationsafety.com.auwww.radiationsafety.com.au
69 Robinson Avenue Belmont Western Australia 6104
Phone 61 (0)8 94750011 FAX  61 (0)8 94750011


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