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Science Inventory
This is an older EPA product. It may be available from EPA's National Service Center for Environmental Publications (NSCEP) and it should be available from the National Technical Information Service (NTIS).
- Search the NSCEP publications database
- Search the National Technical Information Service online database
Reference:
A SIMPLE PHOTOMETER FOR PRECISE DETERMINATION OF DISSOLVED OXYGEN CONCENTRATION BY THE WINKLER METHOD WITH RECOMMENDATIONS FOR IMPROVING RESPIRATION RATE MEASUREMENTS IN AQUATIC ORGANISMS (EPA600J81531)