Ambient humidity vs. RH

[Rubensgt40]

(10-10-2011 03:47 PM)CC Solutions Wrote:  Are there openings for ant trainers in Oz? I have developed my own curriculum and have trained some world renown ants in the 'lost-quarter-under-the-vending-machine-retrieval' field. RH measurement training would be easier...

Our ants are pretty smart, but impatient as I said before. But hey, come down and have a crack at it! We're thinking of letting them run the country also. Can't be worse than <censored:political rant>

On a less silly note- can I clarify something in the ASTM, which has no doubt been discussed/debated/argued at length here (sorry, I don't have all the required copies just yet): Do your standards call for only in-situ RH testing at 40% depth, or is the hood method still allowable to determine RH?

Or is the method itself simply a manufacturer-spec decided thing, while us folks still debate wildly about the merits of each?

I ask this because I just noticed our draft standard (still under public discussion) refers only to RH determined at 40% depth and references ASTM2170.

This may be problematic where under-slab heating is popular in the colder states and nobody wants to drill.

Any similar thoughts/ problems/ observations from the US?