[labnetwork] Precautions for the inspection and handling of used semiconductor manufacturing equipment ?

[John Shott]

Mac et al:

Well, I learned something:  we used to use the old "full-sized 
toothpaste tube" version of Calcium Gluconate ... or at least that's 
what I recall.

Our manufacturer (Attard Minerals -- attminerals.com) now sells both 30 
gram and 60 gram "travel sizes" ... so Mac is absolutely correct that 
there is no need to repackage this stuff.

Thanks for that update, Mac.

John

On 6/24/2014 11:22 AM, Mac Hathaway wrote:
> Hello all,
>
> John's list sounds pretty good.  Two things to add regarding 
> HF/Calcium Gluconate...
>
> The tubes of Calgonate (calcium gluconate 2.5% gel) on my desk are 25g 
> each, or ~0.9 oz, which should be small enough for TSA.  Also, I'm 
> told that while the "shelf life" is two years (perhaps like the "shelf 
> life" of many process gases) for Calgonate, there does seem to be some 
> actual data out that suggest that the useful life after opening is 
> much shorter, perhaps only months, or even weeks.  Thus, repackaging 
> might be problematic.