Empathy List Archives

HM

Hal Murray

Sat, Nov 12, 2016 9:05 PM

I just went ahead and got the short section from McMaster Carr. Want to make
sure it's right if I'm at 400+ PSI with Hydrogen for years at a time!!!

How much hydrogen does a maser use? How big is the tank?

Does it leak through cracks or migrate through metal?

--
These are my opinions. I hate spam.

cdelect@juno.com said: > I just went ahead and got the short section from McMaster Carr. Want to make > sure it's right if I'm at 400+ PSI with Hydrogen for years at a time!!! How much hydrogen does a maser use? How big is the tank? Does it leak through cracks or migrate through metal? -- These are my opinions. I hate spam.

GW

Gary Woods

Sat, Nov 12, 2016 10:25 PM

On Sat, 12 Nov 2016 13:05:56 -0800, you wrote:

Does it leak through cracks or migrate through metal?

I was kinda wondering about that. Isn't H the escape artist of the
periodic table?

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Gary Woods O- K2AHC Public keys at home.earthlink.net/~garygarlic, or get 0x1D64A93D via keyserver
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On Sat, 12 Nov 2016 13:05:56 -0800, you wrote: >Does it leak through cracks or migrate through metal? I was kinda wondering about that. Isn't H the escape artist of the periodic table? -- Gary Woods O- K2AHC Public keys at home.earthlink.net/~garygarlic, or get 0x1D64A93D via keyserver fingerprint = E2 6F 50 93 7B C7 F3 CA 1F 8B 3C C0 B0 28 68 0B

HD

Howard Davidson

Sat, Nov 12, 2016 11:50 PM

Helium

On 11/12/2016 2:25 PM, Gary Woods wrote:

On Sat, 12 Nov 2016 13:05:56 -0800, you wrote:

Does it leak through cracks or migrate through metal?

I was kinda wondering about that. Isn't H the escape artist of the
periodic table?

--
Howard L. Davidson
hld42@att.net

Helium On 11/12/2016 2:25 PM, Gary Woods wrote: > On Sat, 12 Nov 2016 13:05:56 -0800, you wrote: > >> Does it leak through cracks or migrate through metal? > I was kinda wondering about that. Isn't H the escape artist of the > periodic table? > > -- Howard L. Davidson hld42@att.net

PK

Poul-Henning Kamp

Sun, Nov 13, 2016 8:43 AM

In message gk5f2clsh4uld71ta8fq1u3pirrns2o81k@4ax.com, Gary Woods writes:

On Sat, 12 Nov 2016 13:05:56 -0800, you wrote:

Does it leak through cracks or migrate through metal?

I was kinda wondering about that. Isn't H the escape artist of the
periodic table?

Indeed.

In particular it seeps through almost all metals.

The canonical filter method for hydrogen is to press it through a
"filter" which is a of solid slab of Palladium.

Helium is almost as bad, but is better in leak-checks because it
is non-reactive.

--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.

-------- In message <gk5f2clsh4uld71ta8fq1u3pirrns2o81k@4ax.com>, Gary Woods writes: >On Sat, 12 Nov 2016 13:05:56 -0800, you wrote: > >>Does it leak through cracks or migrate through metal? > >I was kinda wondering about that. Isn't H the escape artist of the >periodic table? Indeed. In particular it seeps through almost all metals. (See also: https://en.wikipedia.org/wiki/Hydrogen_embrittlement) The canonical filter method for hydrogen is to press it through a "filter" which is a of solid slab of Palladium. Helium is almost as bad, but is better in leak-checks because it is non-reactive. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.

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