Help Please I need some help about the inert gas

[pathetic failure]

As I mentioned in a previous post:

https://sanctioned-suicide.net/threads/some-questions-about-the-inert-gas-method.197591/

I need someone to clear some misunderstandings for me,It would be much appreciated

 

[Notaname]

That regulator will not work. You need a regulator with a flow meter. There is a density difference in gases so either get a flow meter for the appropriate gas or calculate the difference (There's tables floating around on here). For example: I'm using Nitrogen, but I have an argon regulator (very cheap on Amazon). I will need to use ~12.6-13 liters per minutes rather than 15. For the tubing anything that makes an air tight seal on the barbed fitting will do. A good bet is probably to look up something along the lines of "Medical gas tubing" or "Oxygen tubing". I got mine along with my non-rebreather mask I ordered on Amazon (not a suggested thing due to sealing issues). I've included a picture of the regulator I have. I would also recommend some Teflon tape on the threads to ensure an air tight seal.

 

[pathetic failure]

That regulator will not work. You need a regulator with a flow meter. There is a density difference in gases so either get a flow meter for the appropriate gas or calculate the difference (There's tables floating around on here). For example: I'm using Nitrogen, but I have an argon regulator (very cheap on Amazon). I will need to use ~12.6-13 liters per minutes rather than 15.

Something like this :

View attachment 1000018070.webp

Also how much psi should I use?

 

[Notaname]

Something like this :

View attachment 160923

Also how much psi should I use?

There's many factors here. Your country, the size of your tank, the gas you're going to use, etc.

Regulator: The regulator needs to have a fitting that works with the standard in your country for gas tanks. That regulator uses a CGA580 fitting which is the US standard. If you're in a different country then you'll need to find a regulator with the fitting you need or find an adapter. Along with fitting size that regulator is using CFH instead of LPM so you'll need to convert to LPM.

Flow: The flow you need is dependent on the gas you're using and the flow meter you have. Nitrogen through a nitrogen meter flows different than Nitrogen through an Argon meter. I'm assuming you're using Nitrogen because it's easy to obtain. If you are using an Argon flow meter you will want a flow rate of 13 LPM (27.5 CFH). I've attached a chart with the conversion factors. You need at least 15 LPM of Nitrogen flow for CTB. You can see that an Argon meter with Nitrogen will flow a factor of 1.19 more than it's reading (13 x 1.19 = 15.47), or if you reverse it that a Nitrogen meter with Argon will actually be flowing .84 (15 x .84 = 12.6 round to 13) of its reading. If you have too much flow with too little of a tank you will run out early. If you have too little flow you will not reach the correct gas concentration. Either way results in brain injury and failure to CTB.

Tank size: The absolute minimum tank size you should be using for CTB is a 40 Cubic foot tank. You need 45 minutes of exposure at the correct concentration to CTB and 40 CUFT is the only tank big enough to do that. The math: 40 CUFT to liters = 1132.67 Liters | 1132.67 Liters / 15 LPM = 75.51 Minutes of flow. If you have a tank that is larger than 40 CUFT then it is okay, probably recommended, to increase the flow (I've seen talk of people doing ~20 LPM but I never followed up on that), but make sure you have enough flow for 45 minutes.

I would recommend you take a look at the Inert Gas Megathread as well! There's tons of stuff I didn't cover here I'm sure.

 

[pathetic failure]

There's many factors here. Your country, the size of your tank, the gas you're going to use, etc.

Regulator: The regulator needs to have a fitting that works with the standard in your country for gas tanks. That regulator uses a CGA580 fitting which is the US standard. If you're in a different country then you'll need to find a regulator with the fitting you need or find an adapter. Along with fitting size that regulator is using CFH instead of LPM so you'll need to convert to LPM.

Flow: The flow you need is dependent on the gas you're using and the flow meter you have. Nitrogen through a nitrogen meter flows different than Nitrogen through an Argon meter. I'm assuming you're using Nitrogen because it's easy to obtain. If you are using an Argon flow meter you will want a flow rate of 13 LPM (27.5 CFH). I've attached a chart with the conversion factors. You need at least 15 LPM of Nitrogen flow for CTB. You can see that an Argon meter with Nitrogen will flow a factor of 1.19 more than it's reading (13 x 1.19 = 15.47), or if you reverse it that a Nitrogen meter with Argon will actually be flowing .84 (15 x .84 = 12.6 round to 13) of its reading. If you have too much flow with too little of a tank you will run out early. If you have too little flow you will not reach the correct gas concentration. Either way results in brain injury and failure to CTB.

Tank size: The absolute minimum tank size you should be using for CTB is a 40 Cubic foot tank. You need 45 minutes of exposure at the correct concentration to CTB and 40 CUFT is the only tank big enough to do that. The math: 40 CUFT to liters = 1132.67 Liters | 1132.67 Liters / 15 LPM = 75.51 Minutes of flow. If you have a tank that is larger than 40 CUFT then it is okay, probably recommended, to increase the flow (I've seen talk of people doing ~20 LPM but I never followed up on that), but make sure you have enough flow for 45 minutes.

I would recommend you take a look at the Inert Gas Megathread as well! There's tons of stuff I didn't cover here I'm sure.

Thank you very much,I should probably buy a regulator from my country to be safer even though it costs more.I will also look for further information.It seems there are a lot of stuff I missed.Thank you for your time again

 

[ocean2200reef]

Hello, I am going to ctb this Monday using the oceanreef scuba mask with nitrogen, my nitrogen is %100 pure, I was just wondering if anyone know how to test the connections for leaks when using ocean reef mask, I wanna do the soapy water and hiss test but idk if your supposed open the valve all the way or just a little and for how long? Also am in the usa and the adapter for it has to be to pieces that your screw together and my pieces won't screw all the way, there is still a few visible threads and I made sure I purchased the correct ones.