I've become super lax about my additions of late - just going off guestimates and using my palate as a yardstick

Nothing wrong with that - it's how I worked out that the Tinseth calculator wasn't working for my conditions.

This is the old Excel spreadsheet I put together (about 10 years ago) it shows the interplay of the Alpha > Iso Alpha > Degradation.

Its basically equation 12 (with the sign reversed), it illustrates the conditions of the experiment, without any of the additions/modifications/improvements you have made.

Interesting work to date much appreciated.

Mark

I actually don't think the sign in Eq 12 is wrong, if it were C_{deg} would move in the wrong direction over time.

As it stands the RHS of Eq 12 reads C_{alpha,initial }+ C_{alpha,initial} / (rate terms) where any mathematician would have expressed that as

C_{alpha,initial }( 1 + 1 / (rate terms)).

Also at t = 0 the rate term exponentials are both = 1 so their difference = 0 and the rate terms disappear so as it stands or with your modification we would be left with C_{ deg} = C_{ alpha, initial} which makes no sense.

I believe the first C_{alpha,initial. }term should be C_{deg,initial} instead.

**Edited by Lyrebird_Cycles, 01 August 2016 - 10:42 PM.**