Time, temp, testing room temp RA4

I've been using Tetenal 2,5l amateur kit. It has some good sides - short development times and smells better than regular RA chemistry. However it's rather expensive and blix concentrate sometimes goes bad before you buy it.

I've just switched to Tetenal monoline chemistry as its what I can get easily and cheap from a small local lab.

Lately I've been doing abstract series on slightly fogged paper so the process didn't have to be strictly correct as long as it was mostly consistent.

I used CD at replenisher strength, 90s @28-30C (that was my room temperature last week) as it gave decent black on test strips exposed to room light.

Now I'm bit confused how do I test that dilution - temp - dev time is correct?

I don't think that I have a print that I can use as reference. I have some prints done at a pro lab with some kodak q-certificates but again they all are from xprocessed slides.

Domin,

You can use the Kodak RA kits at room temperature (20ºC) by increasing develeoper and blix immersion times. These room temperature kits are supposed to have issues.

Tom

The Tetenal Monoline chemistry I use now is regular RA4 chemistry which local lab uses in their minilab. It is NOT the amateur room temperature kit.

I have no reasonable local source of Kodak chemicals and I'd rather use what I have than buy some new and let what I have go bad.