</span><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (David A. Goldfarb @ Oct 19 2002, 10:12 PM)</td></tr><tr><td id='QUOTE'>TF-4 doesn&#39;t list the ingredients. It is ammonium thiosulfate based, according to Photographers&#39; Formulary (I asked), but I don&#39;t know what the other ingredients are. Aren&#39;t they required to provide a data sheet for safety reasons? I think there is some way of getting that information.</td></tr></table><span id='postcolor'>
Yeah&#33; I thought they were supposed to provide a safety data sheet if one requests it. But I can tell you if it is ammonium thiosulfate there is a risk of overfixing I dont care what they say. I think I will drop them a line and ask for the safety data sheet. Thanks David.