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Boris Johnson tests positive for Covid-19

I do find it odd though that your figure and that of the manufacturer differ, in which circumstance, I know whose figure I would regard as accurate.

I'm that bored, I thought I'd find some studies.


The manufacturers of these gas mixtures include instructions in their Material Safety Data Sheets to store cylinders in a horizontal position for at least 48 hours in an area where the temperature is maintained above 10°C and to invert the cylinders three times before use to ensure the mixture is homogenous, but offer no explanation as to why; the background knowledge of the studies done in gas physics and behaviours has long since faded from our collective consciousness.

After lots of science, it concludes:

Nitrous oxide, which as a single gas liquefies at the pressures commonly seen in a medical gas cylinder, remains solely in the gas phase when part of a 50%/50% v/v mixture with oxygen as long as it remains above its critical temperature (-7°C for a full cylinder at 138 bar [2,000 psig]). The resulting mixture is homogenous above this temperature and will not lose homogeneity during use. It is possible to cause condensation and phase separation of such a mixture by cooling the cylinder below its critical temperature. Temperatures below this point may be seen in many months of the year in Canada. However, by allowing a cylinder to rewarm to room temperature for at least a 48-hour period, preferably in a horizontal orientation to maximize surface area for heat transfer to any nitrous oxide in the liquid phase in the cylinder, and briskly inverting it three times before use, the gases in the cylinder will rehomogenize and consistently deliver the proper proportions of the constituent components.

Maybe you misremembered and the room was below -7°C
 
I'm that bored, I thought I'd find some studies.




After lots of science, it concludes:



Maybe you misremembered and the room was below -7°C
So, BOC the manufacturer has issued erroneous information on its own product?
 
My mum said she thought Raab had it too but I can't see anything in the news

:confused:

TBF Gove did answer a question about who would take over from Boris in a really strange way, given that they'd said it would be Raab earlier in the week. It could just be that he is a really strange man though.
 
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