Accession Number:

AD0691471

Title:

BACTERIA SENSOR FOR REPROCESSED WATER - MICROBIOLOGICAL RESEARCH, DESIGN, AND FABRICATION.

Descriptive Note:

Final rept. May 67-Aug 68,

Corporate Author:

GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV

Personal Author(s):

• Geating,John A.
• Rudek,Fred P.

Report Date:

1969-02-01

Pagination or Media Count:

72.0

Abstract:

The results of the developmental research leading to the design and fabrication of a short-time, electronic sensor to monitor the bacteriological quality of reprocessed water aboard spacecraft are reported. The basic sensing capability is furnished by a Coulter Counter that selectively detects and counts particles of bacterial size. Detection is accomplished by comparing the number of bacteria-size particles in the reprocessed water sample at some point in time with a particle count at some future point in time, i.e., following the establishment of conditions necessary to allow growth and multiplication of bacteria. A significant difference between the two counts strongly implies bacterial replication, and therefore the presence of viable organisms in the raw reprocessed water. Author

Descriptors:

• *SPACE CREWS
• WATER SUPPLIES
• MONITORS
• ELECTRONIC EQUIPMENT
• SENSITIVITY
• FLUID FILTERS
• BACTERIA
• PARTICLE SIZE
• AEROSPACE MEDICINE

Subject Categories:

• Test Facilities, Equipment and Methods
• Life Support Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE