APPLIED AND ENVIRONMENTAL MICROBIOL-OGY. Aug. 1988. p. 2069-2072
0099-2240/88/082)069-04$02 .00/0
Copyright ©O 1988, American Society for Microbiology
Averaging of TNTC Counts
CHARLES N. HAAS* AND BARBARA HELLER
Illiniois Itistitite of Technology, Chi ago, Illitiois 60616
Received 10 March 1988/Accepted 23 May 1988
When plate count methods are used for microbial enumeration, if too-numerous-to-count results occur, they
are commonly discarded. In this paper, a method for consideration of such results in computation of an average
microbial density is developed, and its use is illustrated by example.
Vol. 54. No. 8
0099-2240/88/082)069-04$02 .00/0
Copyright ©O 1988, American Society for Microbiology
Averaging of TNTC Counts
CHARLES N. HAAS* AND BARBARA HELLER
Illiniois Itistitite of Technology, Chi ago, Illitiois 60616
Received 10 March 1988/Accepted 23 May 1988
When plate count methods are used for microbial enumeration, if too-numerous-to-count results occur, they
are commonly discarded. In this paper, a method for consideration of such results in computation of an average
microbial density is developed, and its use is illustrated by example.
Vol. 54. No. 8