e. Final ammonia measurement: Determine the ammonia by (1) nesslerizacion or (2) titration.
1) NESSLERIZATION Mix the distillate thoroughly and measure a 50.0 ml portion or less. Complete the determination as described in Nitrogen (Ammonia), Section 132B.4b through
2) TITRATION Titrate the ammonia in the distillate with standard 0-02N sulfuric acid titrant until the indicator turns a pale lavender.
f. Blank: Carry a blank through in the steps of the procedure and apply the necessary correction to the results.