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Tommen Baratheon

Tommen Baratheon

1+1=3
Dec 26, 2023
346
How do i set it to 15L/min? the regulator i am offered is a : Gentec Single Stage Nitrogen Regulator 452IN-175

genstartech.com/medium-duty-single-stage-cylinder-regulators-0

Is there a way to calculate based off Psi/Bar? or do i have to purchase one of those argon flow rate attachments?

Thank you btw, you've been a great help tommen
I don't know how you can convert it. This is a piece of the puzzle that I'm missing myself. I have an argon regulator in mind that I could use with nitrogen and it shows l/min. I've read here that in that case, pressure should be 17 l/min instead of 15 l/min, because nitrogen and argon aren't the same, but there doesn't seem to be a clear answer to that. I'm just repeating what I've read, so far.

The tank I would choose is 20l and 200 bar, so 4.000 liter of compressed nitrogen. So even with a higher pressure this should be enough.
Thank you for the feedback, there's no prep I need to do for EEBD hood except replace the gas source? I'm not sure if the regulator can naturally fit with the EEBD hose hood since I'm still waiting on them. But I ordered two hoods so I can experiment, if it doesn't connect I was thinking of using a hole clamp with the cut hose.

Does anything else seem cause for concern do you think?
I haven't read much about t using an EEBD as I'm choosing a self made exit bag. I know pressure needs to 25 l/min instead of 15 l/min.

Another difference: with an exit bag you fill the bag with gas, exhale and then pull the bag down and inhale. With an EEBD you can't do that. It needs to be ready, on your face, so you have to hold your breath for a moment while the hood is being filled with gas.

PPeH talks about the use of an EEBD, but my version of the PPeH is in Dutch. I've made screenshots (and will do that again before my subscription expires), but videos aren't avaible and you can't scan the text to translate since it's not a PDF. Maybe Google Lens could help, but that would a lot of work.
 
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PlannedforPeru

PlannedforPeru

SaSu. Lurker
Sep 21, 2024
151
PPeH talks about the use of an EEBD, but my version of the PPeH is in Dutch. I've made screenshots (and will do that again before my subscription expires), but videos aren't avaible and you can't scan the text to translate since it's not a PDF. Maybe Google Lens could help, but that would a lot of work.
I appreciate all of the help you have given me over these past few posts and continue to offer, I can't ask you to go out of your way to send me screenshots as I'll probably do another pass through with the 2019 edition and make do. If you do decide to send them, I'll see if I can find a way to translate from Dutch and share them with you (just to have both handy).
 
exitingtothevoid

exitingtothevoid

🏳️‍⚧️
Aug 2, 2024
52
How do i set it to 15L/min? the regulator i am offered is a : Gentec Single Stage Nitrogen Regulator 452IN-175

genstartech.com/medium-duty-single-stage-cylinder-regulators-0

Is there a way to calculate based off Psi/Bar? or do i have to purchase one of those argon flow rate attachments?

Thank you btw, you've been a great help tommen
I think that regulator is just a regulator, not a combined regulator and flow meter. The regulator only reduces the pressure from the extreme high pressure that is in the bottle. A flow meter is needed to control the quantity of gas that is coming out.
 
SomewhereAlongThe

SomewhereAlongThe

Student
May 17, 2024
128
I'm wondering if you have to adjust the lpm from 15 lpm to 17 lpm with an argon regulator like this:

1729128409656

It says it can also be used for gases like Helium and CO2, so I'm guessing no, right?
 
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killmesoftly

killmesoftly

Member
Oct 15, 2024
29
I NEED HELP. I hastily attempted to ctb last month with He, however my SI kicked in and luckily so after reading over this thread because I didn't have it set up right. However I've been trying to research to get it right and I'm beyond confused, there are no specific instructions on sourcing the gas, regulator and flowmeter depending on country/region and I don't know how in the hell to figure this out myself. I can't access the PPH bc I'm not old enough and the only version I can find doesn't give specific enough instructions. Please please help me. I'm desperate for a way out.
 
AbyssalAlien

AbyssalAlien

Member
Oct 5, 2024
84
Important to note. Most helium tanks will have oxygen mixed with them and if you use one of those it will leave brain damaged instead.

Nitrogen gas is the better solution. I heard Argon works too.
I'm wondering if you have to adjust the lpm from 15 lpm to 17 lpm with an argon regulator like this:

View attachment 152703

It says it can also be used for gases like Helium and CO2, so I'm guessing no, right?
Noble gasses only
 
SomewhereAlongThe

SomewhereAlongThe

Student
May 17, 2024
128
Important to note. Most helium tanks will have oxygen mixed with them and if you use one of those it will leave brain damaged instead.

Nitrogen gas is the better solution. I heard Argon works too.

Noble gasses only
I'm sorry, but what do you mean by noble gases only? Do you mean I can only use the regulator with noble gases, because it also says it's compatible with cO2, or do you mean I only have to adjust the 15lpm with noble gases?
Is a 10-liter bottle of argon enough to get out?
No a 10-liter bottle is hardly enough considering that you need 500 litres to exit with nitrogen, at least 45 min of gas to make sure you're dead.
 
AbyssalAlien

AbyssalAlien

Member
Oct 5, 2024
84
For the method, noble gasses are better suited. Specifically pure helium and nitrogen. I have heard of argon also being suited, but I have not seen or read about an argon based exit bag.
 
Tommen Baratheon

Tommen Baratheon

1+1=3
Dec 26, 2023
346
I'm wondering if you have to adjust the lpm from 15 lpm to 17 lpm with an argon regulator like this:

View attachment 152703

It says it can also be used for gases like Helium and CO2, so I'm guessing no, right?
Does it say anything about nitrogen? Then again, you could simply choose helium.
Is a 10-liter bottle of argon enough to get out?
Depends on what the pressure is. For instance, if it is 200 bar, then you have 2.000 liter (10 l * 200 bar) of compressed argon.
 
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Tommen Baratheon

Tommen Baratheon

1+1=3
Dec 26, 2023
346
No a 10-liter bottle is hardly enough considering that you need 500 litres to exit with nitrogen, at least 45 min of gas to make sure you're dead.
You can't say that without knowing what the pressure (bar or PW) is. If the 10 l tank is 200 bar, then it contains 2.000 l of compressed argon. I have no idea about the differences between argon and nitrogen or what l/min should be set.

Also, 500 l nitrogen at 15 l/min., that's 33 minutes, so 500 l wouldn't be enough (even though death with helium occurs between 6 and 16 minutes, source: Dignified dying (Uitweg) by Boudewijn Chabot).
Important to note. Most helium tanks will have oxygen mixed with them and if you use one of those it will leave brain damaged instead.
I'm sorry, but that's not true. In the US (!) most helium tanks for balloons (!) are mixed with 20% oxygen to prevent people to ctb. However, if you get the industrial kind (helium can be used for welding) you can find tanks with 99,99% helium. I can get one of those delivered at home.
 
Last edited:
SomewhereAlongThe

SomewhereAlongThe

Student
May 17, 2024
128
You can't say that without knowing what the pressure (bar or PW) is. If the 10 l tank is 200 bar, then it contains 2.000 l of compressed argon. I have no idea about the differences between argon and nitrogen or what l/min should be set.

Also, 500 l nitrogen at 15 l/min., that's 33 minutes, so 500 l wouldn't be enough (even though death with helium occurs between 6 and 16 minutes, source: Dignified dying (Uitweg) by Boudewijn Chabot).

I'm sorry, but that's not true. In the US (!) most helium tanks for balloons (!) are mixed with 20% oxygen to prevent people to ctb. However, if you get the industrial kind (helium can be used for welding) you can find tanks with 99,99% helium. I can get one of those delivered at home.
You're right, my numbers were off and I didn't take into account the bar of the tank. My apologies
 
Tommen Baratheon

Tommen Baratheon

1+1=3
Dec 26, 2023
346
No, but I read you can use it with nitrogen. I've already gotten the nitrogen tank, so unfortunately I can't choose helium.
Ah, like that. Yes, that's what I've read here: you can use an argon regulator for a nitrogen tank (if the connections fit), but then you'd need to set it to 15 l/min instead of 17 l/min. HOWEVER, I'm not sure this is correct. There seems to be some discussion about converting argon/nitrogen. If you have enough, I guess it wouldn't matter much, because then - in theory - you could set it to 25 l/min and still have it running for over an hour.
 
S

Shunya

Member
Oct 23, 2023
72
Do you know if there is anything I need to do in advance that'll increase my chances of not missing the bus using nitrogen? So far here's what I got:

1. ) Go to remote location (already picked).
2. ) Test purity in EEBD hood with mannequin head, aiming for below 0. (nitrogen is at least 99.5%)
3. ) Flow rate with argon regulator around 35 LPM, (+40 cf canister).
3. ) Drink some beers while testing until buzzed (reason for during instead of after below).
4. ) Hyperventilate / deep breaths for two minutes while the hood band is on my forehead filling up.
5.) Put the hood on and try to watch some videos.

I'm not all too familiar with the anatomy of the hood as I'll refine my process when it arrives, I'm assuming it has some neck band to prevent gases going in & out.

I know drinking can impair my motor functions but its at the trade-off of trying to approach this as I would any other activity; like I'm cooking a new food recipe. I worry if I am methodical to an insane degree it'll risk flaring up my SI.

Few last details, I'm doing this in the backseat of my car sitting / partially leaning back on the floor with the canister in between my arms and legs. I'm 6'4 (193 cm) and around 200 lbs (90.8 kg).

Is there anything that looks off in my plan? Additionally, would alcohol or any specific diet beforehand physiologically alter how I interact with the gas?


Thanks in advance, and to contribute back to anyone reading this, if you want to go this route order the hood waaaaaaaaaay ahead of time if you are in the US.
Have you checked if the purge valve works? Does yours have a band to hold it to your nose and mouth inside the hood?
Mine doesn't have a band and I'm not sure it works because when I tried on my hood, even while holding the purge valve from the outside, the hood would expand and contract with my breathing. Kudaphillips wrote that the buildup of co2 might make things uncomfortable, whilst Tearsintherain wrote that a little co2 is ok.

Also, why 35lpm if I may ask? I thought that with an argon regulator 20lpm will do? Since argon is a heavier gas 20lpm would be equal to 25lpm with a nitrogen regulator.
For eebd hoods the hose won't connect to a regulator properly. You'll have to cut the connector off the hose (the hose itself should still be 1/4' ID) and then attach the hose with a worm gear clamp. But other then that, everything should indeed be set up already.
I didn't cut my connector off. I just attached it to another hose. It's a snug fit and I plan to fasten it with hose clamps. Is that ok you think?
 

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PlannedforPeru

PlannedforPeru

SaSu. Lurker
Sep 21, 2024
151
Have you checked if the purge valve works? Does yours have a band to hold it to your nose and mouth inside the hood?
Mine doesn't have a band and I'm not sure it works because when I tried on my hood, even while holding the purge valve from the outside, the hood would expand and contract with my breathing. Kudaphillips wrote that the buildup of co2 might make things uncomfortable, whilst Tearsintherain wrote that a little co2 is ok.

Also, why 35lpm if I may ask? I thought that with an argon regulator 20lpm will do? Since argon is a heavier gas 20lpm would be equal to 25lpm with a nitrogen regulator.
I haven't tested my hood(s) yet as they just arrived so I'm not sure if the purge valve works yet, but I'm planning on testing it this weekend.

And for the second part is that because nitrogen would flow more freely on account of it being less dense? I've seen discussion of the conversion going both ways in setting it higher and lower and it's got me kinda stumped atm.
 
M

Msvr

Legio Patria Nostra”
Sep 9, 2024
79
I didn't cut my connector off. I just attached it to another hose. It's a snug fit and I plan to fasten it with hose clamps. Is that ok you think?
Yeah should be absolutely fine. After you get everything set up get some soapy water or Windex and spray it on the hoses to double check there aren't any leaks.

I haven't tested my hood(s) yet as they just arrived so I'm not sure if the purge valve works yet, but I'm planning on testing it this weekend.

And for the second part is that because nitrogen would flow more freely on account of it being less dense? I've seen discussion of the conversion going both ways in setting it higher and lower and it's got me kinda stumped atm.
So I have a N2 cylinder and an argon regulator. Same as you I was confused about the conflicting information on the forums. Some people said set the regulator to 13 lpm, others said 17lpm. So I just did some test on my own. I got a 18.9 liter (5 gallon) jug of water. I then filled up a bathtub full of water. I then stuck the gas hose inside the jug and flipped the jug upside down inside the bath of water. This creates a positive pressure that keeps all the water inside the jug, upside down. Finally you turn the gas on and you can calculate the exact flow. If it takes exactly 60 seconds, that would be 18.9 lpm. If it took 90 seconds, that would be 12.6 lpm, etc. Based on my multiple tests, it took 18-19 lpm indicated on the regulator to achieve an actual rate of 15 lpm. That may include a bit of error from the couple seconds it takes to initially turn the gas on, or not keeping the jug perfectly perpendicular the the ground. But it is enough the prove that IF USING AN ARGON REGULATOR WITH N2, SET THE REGULATOR HIGH, TO 17-18 LPM!
 
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A

Allla

Member
Aug 18, 2024
20
Hi! Say me please, if I have metastases in the lungs, Exit Bag will not work? Or it's worth trying?
 
SomewhereAlongThe

SomewhereAlongThe

Student
May 17, 2024
128
Yeah should be absolutely fine. After you get everything set up get some soapy water or Windex and spray it on the hoses to double check there aren't any leaks.


So I have a N2 cylinder and an argon regulator. Same as you I was confused about the conflicting information on the forums. Some people said set the regulator to 13 lpm, others said 17lpm. So I just did some test on my own. I got a 18.9 liter (5 gallon) jug of water. I then filled up a bathtub full of water. I then stuck the gas hose inside the jug and flipped the jug upside down inside the bath of water. This creates a positive pressure that keeps all the water inside the jug, upside down. Finally you turn the gas on and you can calculate the exact flow. If it takes exactly 60 seconds, that would be 18.9 lpm. If it took 90 seconds, that would be 12.6 lpm, etc. Based on my multiple tests, it took 18-19 lpm indicated on the regulator to achieve an actual rate of 15 lpm. That may include a bit of error from the couple seconds it takes to initially turn the gas on, or not keeping the jug perfectly perpendicular the the ground. But it is enough the prove that IF USING AN ARGON REGULATOR WITH N2, SET THE REGULATOR HIGH, TO 17-18 LPM!
Thanks for conducting that test, I really appreciate the insight.

Edit: I got a regulator that says it's for argon and also helium and CO2. How does that work though? Wouldn't the lpm conversion be different for all three gases? Like what's 15 lpm for argon is not for helium and co2, just like it isn't for nitrogen?
 
Last edited:
M

Msvr

Legio Patria Nostra”
Sep 9, 2024
79
Thanks for conducting that test, I really appreciate the insight.

Edit: I got a regulator that says it's for argon and also helium and CO2. How does that work though? Wouldn't the lpm conversion be different for all three gases? Like what's 15 lpm for argon is not for helium and co2, just like it isn't for nitrogen?
Argon, CO2, and helium all have different density so your right that they should have different regulators. The ad is probably just incorrect, or for welding use the difference in density between gases isn't great enough for it to matter. I would set the regulator to 17 lpm, even if you're a little high it won't matter. Better to be high than low.
 
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SomewhereAlongThe

SomewhereAlongThe

Student
May 17, 2024
128
Argon, CO2, and helium all have different density so your right that they should have different regulators. The ad is probably just incorrect, or for welding use the difference in density between gases isn't great enough for it to matter. I would set the regulator to 17 lpm, even if you're a little high it won't matter. Better to be high than low.
Okay thank you, I plan on setting it to 17 lpm, especially after that test you've done. I looked it up on chatgpt, and it said that the regulator uses a standard reference typically calibrated to one gas and has a conversion chart for the other gases.
 
PlannedforPeru

PlannedforPeru

SaSu. Lurker
Sep 21, 2024
151
Have you checked if the purge valve works? Does yours have a band to hold it to your nose and mouth inside the hood?
Mine doesn't have a band and I'm not sure it works because when I tried on my hood, even while holding the purge valve from the outside, the hood would expand and contract with my breathing.
So I just tried on my hood for a bit before I start assembling the set-up over the weekend but my purge valve is more just like a hole than anything.

When it breathe deep the hood expands and contracts ever so slightly and I didn't need to hold anything to my mouth. It's super snug almost uncomfortably so but I do have a pretty large head, if SI kicks in it might take around 20 seconds to pull it off. I'll send a picture of the one I have, it's just the stock photo of it though.

 
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S

Shunya

Member
Oct 23, 2023
72
Yeah should be absolutely fine. After you get everything set up get some soapy water or Windex and spray it on the hoses to double check there aren't any leaks.


So I have a N2 cylinder and an argon regulator. Same as you I was confused about the conflicting information on the forums. Some people said set the regulator to 13 lpm, others said 17lpm. So I just did some test on my own. I got a 18.9 liter (5 gallon) jug of water. I then filled up a bathtub full of water. I then stuck the gas hose inside the jug and flipped the jug upside down inside the bath of water. This creates a positive pressure that keeps all the water inside the jug, upside down. Finally you turn the gas on and you can calculate the exact flow. If it takes exactly 60 seconds, that would be 18.9 lpm. If it took 90 seconds, that would be 12.6 lpm, etc. Based on my multiple tests, it took 18-19 lpm indicated on the regulator to achieve an actual rate of 15 lpm. That may include a bit of error from the couple seconds it takes to initially turn the gas on, or not keeping the jug perfectly perpendicular the the ground. But it is enough the prove that IF USING AN ARGON REGULATOR WITH N2, SET THE REGULATOR HIGH, TO 17-18 LPM!
Thank you so much! I'll do that!

I assumed that since Argon is heavier gas that the flow rate needs to be set lower? But with your tests higher?
I assume you're using an exit bag then since you're looking for a release amount of 15LPM?

That's the spec of my tank
IMG 6722
2m3 so that's 2000litres of compressed gas?

IMG 6726
I suppose instead of setting it on 20LPM with the argon regulator, I should leave it at 25LPM? I don't think it can go any higher

If set at a flow rate of 25LPM, 2000:25 = 80minutes of gas. Is that right?
So I just tried on my hood for a bit before I start assembling the set-up over the weekend but my purge valve is more just like a hole than anything.

When it breathe deep the hood expands and contracts ever so slightly and I didn't need to hold anything to my mouth. It's super snug almost uncomfortably so but I do have a pretty large head, if SI kicks in it might take around 20 seconds to pull it off. I'll send a picture of the one I have, it's just the stock photo of it though.

If it expands and contracts, doesn't it mean that the co2 isn't expelled, that it's still in the hood?

I'm a bald girl, my head practically floats in the hood, it's so roomy. Haha.

I wonder, should we be filling the hood with gas and before we pull the hood down?
I know that's done with the exit bag but in case the purge valve doesn't work, should we do this with the hood too?

I found this which is interesting
IMG 6727
Will have to practice holding my breath.
Hi! Say me please, if I have metastases in the lungs, Exit Bag will not work? Or it's worth trying?
I don't know why it shouldn't work? You're still inhaling and exhaling air.
 
Last edited:
Tommen Baratheon

Tommen Baratheon

1+1=3
Dec 26, 2023
346
Hi! Say me please, if I have metastases in the lungs, Exit Bag will not work? Or it's worth trying?
I don't know if traveling is an option for you, but you can ask for euthanasia in Belgium. Even as a foreigner.
 
S

standingfast

Member
Aug 29, 2024
60
Is this enough helium?

Helium tank I found:
- Purity: 99.99% pure
- Amount: 19g / 103 Liters / 27 Gallons and it is at 1595 PSI
- Has regulator (though I would need a flowmeter separately)

Now there is a calculation to convert LITERS to CUBIC FEET at a given PSI (PRESSURE).
https://airgas.com/mcm-551.pdf

V2 = [P1 x V1)] / P2

Where:
V2 = what we are trying to find (i.e. how many liters are at the given PSI)
P1 = 1595 PSI (of helium tank)
V1 = 103 Liters (of helium tank)
P2 = 14.7 PSI (Atmospheric Pressure)

V2 = (1595 x 103) / 14.7
V2 = 164285 / 14.7
V2 = 11176 liters

Then convert liters to cubic feet

First convert liters to cubic meters


11176/1000 = 11.176 m3

Then convert m3 to cubic feet
1 cubic foot = 0.02832 m3

11.176/0.02832 = 394 Cubic Feet

So I heard you need like 40 Cubic Feet of Helium

Is this enough? Am I thinking correctly about the conversion? Does 103 liters at 1595 PSI actually near 400 cubic feet of helium?
 
C

Chunkus

Member
Oct 18, 2024
12
Good evening all, I was wondering if I could possibly get some help/advice on the size of tank that's needed, I live in the UK and have found a website that sells helium with the following specs...

  • Purity: 99.996%
  • Grade: 4.6
  • Impurities: H2O <3ppm, O2 <5ppm, N2 <10ppm
I'm assuming that would be ok? But where I'm getting confused is the size of their tanks for example one says...
20L (200 bar) which I thought was a 20 litre tank but then it says next to it VOLUME: 3.61m³ which would be 3610 litres?, Is this correct?
I've never delt with any type of gas tanks, I'm absolutely clueless so any advice would be greatly appreciated.
As for a hood I'm looking at 3M Scott ELSA-10-B set (see attached pic, if it allows me to post it)
Does this look suitable?

Many thanks

Chunk
 

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kudaphillips

Student
Apr 17, 2024
178
Good evening all, I was wondering if I could possibly get some help/advice on the size of tank that's needed, I live in the UK and have found a website that sells helium with the following specs...

  • Purity: 99.996%
  • Grade: 4.6
  • Impurities: H2O <3ppm, O2 <5ppm, N2 <10ppm
I'm assuming that would be ok? But where I'm getting confused is the size of their tanks for example one says...
20L (200 bar) which I thought was a 20 litre tank but then it says next to it VOLUME: 3.61m³ which would be 3610 litres?, Is this correct?
I've never delt with any type of gas tanks, I'm absolutely clueless so any advice would be greatly appreciated.
As for a hood I'm looking at 3M Scott ELSA-10-B set (see attached pic, if it allows me to post it)
Does this look suitable?

Many thanks

Chunk
Prefilled helium tanks aren't recommended anymore because even though they claim 99.99 they have been known to be a lot less. Should test the purity if you go tht route
 
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S

standingfast

Member
Aug 29, 2024
60
Prefilled helium tanks aren't recommended anymore because even though they claim 99.99 they have been known to be a lot less. Should test the purity if you go tht route
So is the best route a local supply store?
 

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