Scrubber material question 408 & 812

vid · 2nd August 2007, 16:41

Ok, so we're going on hols and the resort only has 408 and 812 grade. I'm presuming that 812 would be the best choice for use with a vision? Or am I wrong?

thx

vid

Simon A · 2nd August 2007, 17:05

8-12 mesh is the same size grains as the 797 from molecular products.
4-8 mesh is the larger size.
8-12 is best for the vision, but 4-8 is useable if you cant get anything else, just remember that it won't give you as much duration.
HTH
Simon A

***caveseeker7*** · 2nd August 2007, 17:42

I made a post regarding different granule sizes a while.
The smaller granules are usually used in units with front mounted counterlungs
as they offer a bit more breathing resistance.

Quote: (Originally Posted by me)

The usual "mesh" sizes used for CO2 absorbant are Tyler screen size.
The mesh numbers denote the number of openings in the screen per linear inch

Dräger Dive Sorb is 5-9 mesh (between 2 mm and 4 mm)

Grace Sodasorb and Molecular Sofnolime come in 4-8 mesh (2,38 and 4,76 mm)
as well as Sodasorb in 6-12 mesh (1,41 mm and 3,36 mm)
and Sofnolime in 8-12 mesh (1,41 mm and 2,38 mm)

Sperasorb would be somewhere between 5-7 or 5-8 mesh.

More info on particle size.

vid · 2nd August 2007, 23:37

thanks guys - that's sorted that out
vid

2nd August 2007, 16:41	#1 (permalink)
vid New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Sport Kiss Join Date: Jan 2006 Location: Surrey, UK Posts: 65	Scrubber material question 408 & 812 Ok, so we're going on hols and the resort only has 408 and 812 grade. I'm presuming that 812 would be the best choice for use with a vision? Or am I wrong? thx vid __________________ vid
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2nd August 2007, 17:05	#2 (permalink)
Simon A Escapee from DIY Rebreather's Current Rebreather/s: Inspiration Classic Other Rebreather/s: Not Bought Yet Join Date: Feb 2005 Location: Reading, UK Posts: 346	Re: Scrubber material question 408 & 812 8-12 mesh is the same size grains as the 797 from molecular products. 4-8 mesh is the larger size. 8-12 is best for the vision, but 4-8 is useable if you cant get anything else, just remember that it won't give you as much duration. HTH Simon A
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2nd August 2007, 17:42	#3 (permalink)
*caveseeker7* Who loves ya, baby Current Rebreather/s: Sport Kiss Other Rebreather/s: Prism Topaz Join Date: Jan 2005 Location: Too far from Neverland Posts: 5,560	Re: Scrubber material question 408 & 812 I made a post regarding different granule sizes a while. The smaller granules are usually used in units with front mounted counterlungs as they offer a bit more breathing resistance. Quote: (Originally Posted by me) The usual "mesh" sizes used for CO2 absorbant are Tyler screen size. The mesh numbers denote the number of openings in the screen per linear inch Dräger Dive Sorb is 5-9 mesh (between 2 mm and 4 mm) Grace Sodasorb and Molecular Sofnolime come in 4-8 mesh (2,38 and 4,76 mm) as well as Sodasorb in 6-12 mesh (1,41 mm and 3,36 mm) and Sofnolime in 8-12 mesh (1,41 mm and 2,38 mm) Sperasorb would be somewhere between 5-7 or 5-8 mesh. More info on particle size. __________________ Cheers Stefan "Political Correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.!"
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2nd August 2007, 23:37	#4 (permalink)
vid New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Sport Kiss Join Date: Jan 2006 Location: Surrey, UK Posts: 65	Re: Scrubber material question 408 & 812 thanks guys - that's sorted that out vid __________________ vid
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