I have some old smoke alarms,
is there any use for them or must i dump them,
if so where to recycle them?

[george]

George Miles wrote:

I have some old smoke alarms,
if so where to recycle them?

Hand them in to any fire-station (after the random bleeps annoy them for
long enough they'll send them away for recycling).

On 06/01/18 15:24, George Miles wrote:
I have some old smoke alarms,
is there any use for them

Absolutely there is!

https://en.wikipedia.org/wiki/David_Hahn

or must i dump them,
if so where to recycle them?

They are medium level nuclear watse. Or would be if they came from a
nuclear power station.

Best simply put them in tbe bin

[george]



--
Any fool can believe in principles - and most of them do!

If they are the ones based on radioactive isotopes I believe you need to be
careful to make sure they get given to the right place.
If they use some other technology then its normally the council electrical
folk who send them for recycling.
I remember there was a bit of a stink when people dumped their old dial
trimfones. as the back lit figures were based on a beta lite ie a
radioactive gas in a sealed tube with a phosphor which the beta particles
stimulated and as the electron changed charge a pulse or photon was
emitted giving that eerie light. Brian

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"George Miles" wrote in message
...
I have some old smoke alarms,
is there any use for them or must i dump them,
if so where to recycle them?

[george]

REally? we here were told never to do so.
Brian

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This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"The Natural Philosopher" wrote in message
news
On 06/01/18 15:24, George Miles wrote:
I have some old smoke alarms,
is there any use for them

Absolutely there is!

https://en.wikipedia.org/wiki/David_Hahn

or must i dump them,
if so where to recycle them?

They are medium level nuclear watse. Or would be if they came from a
nuclear power station.

Best simply put them in tbe bin

[george]



--
Any fool can believe in principles - and most of them do!

On 06/01/2018 15:31, The Natural Philosopher wrote:
On 06/01/18 15:24, George Miles wrote:
I have some old smoke alarms,
is there any use for them

Absolutely there is!

https://en.wikipedia.org/wiki/David_Hahn

or must i dump them,
if so where to recycle them?

They are medium level nuclear watse. Or would be if they came from a
nuclear power station.

Best simply put them in tbe bin

[george]



IIRC they were originally designed to be suitable for landfill, your
local tip *might* prefer them to go into the "electronics" bin.

They contain just under a microcurie of Americium 241. That gives over
30,000 decays per second, but being alpha particles won't set off an
ordinary geiger counter because of the way it is packaged.

Wouldn't recommend swallowing one, but you would need 70,000 to do a
Litvinenko. Not actually any real threat in "dirty bombs" but I bet GCHQ
are watching.

https://en.wikipedia.org/wiki/Poison...der_Litvinenko

On 06/01/2018 16:09, Brian Gaff wrote:
If they are the ones based on radioactive isotopes I believe you need to be
careful to make sure they get given to the right place.
If they use some other technology then its normally the council electrical
folk who send them for recycling.
I remember there was a bit of a stink when people dumped their old dial
trimfones. as the back lit figures were based on a beta lite ie a
radioactive gas in a sealed tube with a phosphor which the beta particles
stimulated and as the electron changed charge a pulse or photon was
emitted giving that eerie light. Brian


Quite a lot of old Trimphones were dumped in a skip on the Harwell site,
which got them a fine.

https://wikivisually.com/wiki/Trimphone

An audio specialist once claimed that the distinctive "Warble tone" was
perfectly optimised to make it difficult to locate.

On Saturday, 6 January 2018 17:35:46 UTC, newshound wrote:
On 06/01/2018 16:09, Brian Gaff wrote:

If they are the ones based on radioactive isotopes I believe you need to be
careful to make sure they get given to the right place.
If they use some other technology then its normally the council electrical
folk who send them for recycling.
I remember there was a bit of a stink when people dumped their old dial
trimfones. as the back lit figures were based on a beta lite ie a
radioactive gas in a sealed tube with a phosphor which the beta particles
stimulated and as the electron changed charge a pulse or photon was
emitted giving that eerie light. Brian


Quite a lot of old Trimphones were dumped in a skip on the Harwell site,
which got them a fine.

https://wikivisually.com/wiki/Trimphone

An audio specialist once claimed that the distinctive "Warble tone" was
perfectly optimised to make it difficult to locate.

it sounded exactly the same as a certain bird. Predictable results.

David Hahn had a use for smoke alarms, but I wouldn't recommend that. free.uk.diy.nuclear-device may have more info, this group doesn't really extend to nuclear diy. AFAIK!

The authorities make an exception for home radioactive smoke alarms, otherwise you need nuclear certification even to move one across the room.


NT

wrote:

On Saturday, 6 January 2018 17:35:46 UTC, newshound wrote:
On 06/01/2018 16:09, Brian Gaff wrote:

If they are the ones based on radioactive isotopes I believe you need
to be careful to make sure they get given to the right place. If they
use some other technology then its normally the council electrical
folk who send them for recycling. I remember there was a bit of a
stink when people dumped their old dial trimfones. as the back lit
figures were based on a beta lite ie a radioactive gas in a sealed
tube with a phosphor which the beta particles stimulated and as the
electron changed charge a pulse or photon was emitted giving that
eerie light. Brian


Quite a lot of old Trimphones were dumped in a skip on the Harwell site,
which got them a fine.

https://wikivisually.com/wiki/Trimphone

An audio specialist once claimed that the distinctive "Warble tone" was
perfectly optimised to make it difficult to locate.

it sounded exactly the same as a certain bird. Predictable results.

I think the problem was that certain birds mimicked it. Same effect,
obviously, but it did depend on the morale and IQ of one's local birds.



David Hahn had a use for smoke alarms, but I wouldn't recommend that.
free.uk.diy.nuclear-device may have more info, this group doesn't really
extend to nuclear diy. AFAIK!

The authorities make an exception for home radioactive smoke alarms,
otherwise you need nuclear certification even to move one across the room.


NT


--

Roger Hayter

On Sat, 6 Jan 2018 17:35:44 +0000, newshound
wrote:

On 06/01/2018 16:09, Brian Gaff wrote:
If they are the ones based on radioactive isotopes I believe you need to be
careful to make sure they get given to the right place.
If they use some other technology then its normally the council electrical
folk who send them for recycling.
I remember there was a bit of a stink when people dumped their old dial
trimfones. as the back lit figures were based on a beta lite ie a
radioactive gas in a sealed tube with a phosphor which the beta particles
stimulated and as the electron changed charge a pulse or photon was
emitted giving that eerie light. Brian


Quite a lot of old Trimphones were dumped in a skip on the Harwell site,
which got them a fine.

They also got fined over a botched attemp to recover the silver from
the radioactive sources in smoke detectors.

http://news.bbc.co.uk/1/hi/uk/1767403.stm

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