I dont think there is such a spec that will tell you for definite that food grade piping is needed.
I work for a consultancy company that does a lot of work for food industry clients and typically the client would specify what pipework they want installing.
If I understand correctly - you're...
To my knowledge SO2 is pretty insoluble in really conc. sulphuric acid. I don't know if youre trying to increase concentration above 98% - if thats the case you would usually oxidise the SO2 to SO3 over a catalyst. This is then absorbed by 98% acid in a suitable tower to produce oleum which...
Id just use the viscosity of methane - you won't get an accurate value of viscosity - even HMSO publications state that.
If you want to do a slightly better job - just do a weighted average i.e 0.9825 x visc. CH4 + 0.0079 x visc. N2.....etc.
To go further into it, all the chemicals are going...
I have been asked to look at a piece of plant - a tank full of water with an exit at the bottom leading to a t-piece. Each branch of the 'T' leads to a pump, which will run independant of each other from 0-20 m^3/h. The question I was asked was 'would there be any problems here'. My immediate...
