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Micro containers


Mr'D

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I recently bought a batch of these from ebay:

 

Specimen link

 

They are apx same size as a 35mm canister and a quick test reveals they appear watertight.

 

Has anyone else experienced the longevity of using these in the field?

 

Oh yes, and I don't want to start a long discussion about the merits and/or drawbacks of micros!

 

:laughing::laughing::laughing:

 

Jon

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As the ad says they are okay for formaldehyde, I should imagine that they are leakproof! However, not all plastics are proof against the prolonged effects of tempertaure and UV when left outside for long periods of time. If you have bought some, fill one with dry tissue and chuck it in the garden and see what happens. It looks better than a 35mm cannister, anyway.

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I'd hope they perform better than 35mm canisters.

 

I wouldn't have thought UV light would be a problem, but I suppose cold temperatures could be on hard plastic.

 

I filled one with newspaper and weighted it down in the basin overnight, and there was no sign of leakage 12 hrs later.

Drawback is that they need painting/wrapping in insulating tape - the white top would be a bit of a giveaway hidden in greenery :laughing:

 

I have 2 out now - let's see how they fare.

 

Jon

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I'd hope they perform better than 35mm canisters.

 

I wouldn't have thought UV light would be a problem, but I suppose cold temperatures could be on hard plastic.

 

I filled one with newspaper and weighted it down in the basin overnight, and there was no sign of leakage 12 hrs later.

Drawback is that they need painting/wrapping in insulating tape - the white top would be a bit of a giveaway hidden in greenery :laughing:

 

I have 2 out now - let's see how they fare.

 

Jon

As someone who works in a lab, I imagine these specimin bottles would be designed to be stored at -20 at least, possibly -80 degrees so I imagine they'll be ok in the field!

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This multicache uses specimen type containers of a similar construction and despite being in the field for 18 months now I can confirm that they are still dry as a bone, even the one which floats in the crook of a tree. As to the small pots the local Suffolk Puzzle Cache specialist SuffolkChief uses them so you could contact him for his experience. IMHO a contributory factor to damp micros may be down to operator error when resealing the pot often exacerbated by an obsessive need to stuff a swap/signature item in there too. I recently came across a "small cache" which I spotted by the fuzzy turquoise arm of a bear sticking up through the pile of sticks, sure enough a previous visitor had written in there log that they had swapped out a *** and left a soft toy. Mind you I've yet to find a soft toy crammed into a 35mm film pot - maybe I should invest in some of those grow your own dinosaur sponges. ;)

 

toy-8602.jpg

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I recently bought a batch of these from ebay:

 

Specimen link

 

They are apx same size as a 35mm canister and a quick test reveals they appear watertight.

 

Has anyone else experienced the longevity of using these in the field?

 

Oh yes, and I don't want to start a long discussion about the merits and/or drawbacks of micros!

 

;);):)

 

Jon

Sorry, but why are you paying for contianers like this.......

 

I went to my local ASDA and asked then if they could keep me back some film canisters, two weeks later and I have a whole carrier bag full, all for free... :)

 

I know they may not be the best in the world, but they are free.

 

Gareth

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Sorry, but why are you paying for contianers like this.......

I found a freindly chemist in Kingston last year and I relieved him of maybe 30 canisters - he seemed quite pleased I took them off his hands.

 

My quest is to find something better: something that doesn't let in water.

 

Jon

Edited by Mr.Dewdrop
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Just a word of caution. Some of the clear hard plastic containers we receive at work have notoriously bad lids, and leak like a sieve. (not pleasant when they are filled with what they are 'supposed' to be!) They may also crack in the cold, as our ones aren't freezer proof.

 

I have a reasonable supply of the opaque 'softer' plastic ones, and these do seal well. Might get round to putting some out soon!

 

Good luck!

 

D

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This multicache uses specimen type containers of a similar construction and despite being in the field for 18 months now I can confirm that they are still dry as a bone, even the one which floats in the crook of a tree. As to the small pots the local Suffolk Puzzle Cache specialist

 

As we placed the subject multi, I can confirm that I did carry out the suggested "garden" test before using the brand-new specimen jars. I reason that if they were designed to keep liquid in...

 

However, each micro is place in a location that protects the specimen from direct sunlight. The location that might suffer such exposure is protected within a larger opaque plastic container that also makes it easier to find (some cachers reported difficulty in spotting it).

 

We too got our specimen jars gratis from a dispensary...

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