recovering said fixer solution in {HEAD ~ a condition} suitable for reuse as a photographic fixer in {TAIL ~ a process} for fixing photographic film, wherein the pH of said solution is not significantly altered by said process 
recovering said fixer solution in { HEAD ~ a condition } suitable for reuse as a photographic fixer in { TAIL ~ a process } for fixing photographic film , wherein the pH of said solution is not significantly altered by said process
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH