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