HT1 residual hypo test questions

[Anon Ymous]

Hello

Lacking few grams of silver nitrate to make some HT2 I thought about trying HT1. I'm mostly interested in testing if my films are adequately washed.

I usually process 1 135 film in a Jobo 1520 tank and use 6 water (500ml) changes. Each water change gets some generous agitation at the beginning and then is left for a total of at least 5 minutes. Wash water is within 2°C of development temperature, so at least 18°C. I haven't seen any signs of deterioration of my films, but we're not talking about decades...

I used this test with the last film I processed and the first wash water became brown after adding the HT1 solution. The 3rd and 6th wash waters produced the same colour (magenta), I couldn't spot any difference. So, the questions are:

1) Is this a reliable test, at least for my method of washing?
2) Would it be reliable for FB prints?
3) How long does the solution keep?

Thanks in advance.

 

[pdeeh]

see also (there was a url link here which no longer exists) which might help, but does not answer your questions directly

 

[Anon Ymous]

see also (there was a url link here which no longer exists) which might help, but does not answer your questions directly

Hmmmm, not too sensitive then. Anyway, thanks for the link, I missed it.