Rebreather World - View Single Post - KISS Announces Results of Scrubber Duration Testing

silent running · 11th October 2007, 17:43

Quote: (Originally Posted by jtoorish)

Hopefully if and when other Rebreather manufacturers release their testing data, it will be to the same standards so we will have a good baseline of comparison --essentially comparing all apples as has been mentioned. I suspect that's the reason the testing data is not as 'real world."

I am impressed with KISS that they undertook to have their units tested and they released the data.

Jeff

Hello Jeff, thanks for posting the tests, good to see other manufacturers going to the trouble/expense of independent testing.

I think that a good starting point for an apples to apples comparision is to look at how much CO2 it absorbs before reaching say a .5% SEV or surface equivilant value, the threshold used in USN testing. Going by 1.6lpm for 157 minutes in the CK test, we get 251.2 lts of CO2 absorbtion before the 50 milibar threshold. Based on my frequently faulty math, I think 50 milibar is almost the same as .5% at 1 ata, right? -Andy

11th October 2007, 17:43	#9 (permalink)
silent running Mature mouth breather Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: Jun 2005 Location: U.S.A. Brooklyn, New York Posts: 1,836	Re: KISS Announces Results of Scrubber Duration Testing Quote: (Originally Posted by jtoorish) Hopefully if and when other Rebreather manufacturers release their testing data, it will be to the same standards so we will have a good baseline of comparison --essentially comparing all apples as has been mentioned. I suspect that's the reason the testing data is not as 'real world." I am impressed with KISS that they undertook to have their units tested and they released the data. Jeff Hello Jeff, thanks for posting the tests, good to see other manufacturers going to the trouble/expense of independent testing. I think that a good starting point for an apples to apples comparision is to look at how much CO2 it absorbs before reaching say a .5% SEV or surface equivilant value, the threshold used in USN testing. Going by 1.6lpm for 157 minutes in the CK test, we get 251.2 lts of CO2 absorbtion before the 50 milibar threshold. Based on my frequently faulty math, I think 50 milibar is almost the same as .5% at 1 ata, right? -Andy
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