[Stoves] Relative Humidity question

[Crispin Pemberton-Pigott]

Dear Frank

 

That is a really good question.

 

I append the question: what instrument can read a water concentration of 100
mmoles/mole H2O?

 

The same calibration question arises.

 

Thanks

Crispin

 

 

++++++++

 

Dear Stovers,

 

I have a question regarding Relative Humidity. 

A saturated mix of water and magnesium nitrate (for example) at 40c will
produce a 'percent relative humidity' in the air trapped in the container
above of 48.42 +/- 0.37.

 

What does this mean? Is there a value of grams water per cubic meter of gas
(or some other unit) that we can use to calibrate instrumentation measuring
water vapor?  

 

Thanks

 

Frank

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