SCIENTIFIC RESEARCH

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000600200131-5
• Release Decision: RIPPUB
• Original Classification: R
• Document Page Count: 2
• Document Creation Date: December 22, 2016
• Document Release Date: June 29, 2011
• Sequence Number: 131
• Publication Date: June 25, 1948
• Content Type: REPORT

Sanitized Copy Approved for Release 2011/0f6/29:CIA-RDP80-00809A000600200131-5
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 Sanitized Copy Approved for Release 2011/06/29 :CIA-RDP80-00809A000600200131-5
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~Yt was shown that cerium sulfate is readily applicable
in the sanitary practice of testing natural and drain
xaters for the degroa of oxidizability, Reagent is
superior to the K6[n0 prooadure 4ecause of the
stability of the oxt~izing agent itself and the' stabll-
"Application oP Car3um Su3,fnte,r?? ?`e?~,err..i*~tion of -
Oxidi.zeble Material in Water," L, Io ~3eze1,
5verdlovak F.es Hygienic Inat
"Zhur Ariklad Ithimii" . Yoi 18, 1945, pp 3b1,-b
Number," 3. Ke chirkov~ 3vordlovsk Hygienic Res Inat
"Gigiyens i ~nitariya" No l2, 1944, PP 7-12
titration at soon temperature with i~a0$rj, about 0?00$ g,
~
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4n H2
~o Z
ha Br nusaber b is oxpreaaed in qg
equivalo~et per liter wateno In addition to ar snit.
matter, iaarganic aulfideo, nitrite a, a1r1 Fre+''~
ecupounds consama Br, but tiney are negligible ir.
comparison with the argan:c matter.; Tba b correspoisda
to the amount of the moat active orgganic matter. present
at each stage, while the $MnD1~ oxidi.~ability Ic is
an index of the organic matter reacting onlq with
platted agatnat s ,the degree of 0 saturation, is
1~2~, rapreaent3ng the upper permissiLle IimiL of
or~gaaic matter., An excess is expressed by ~ ? (6G5
organic contamination, v ,-,roved to bb e: very
sa~4aitive index. of contamination of rivers with
fresh fecal matter (v values up to ~,0).. It is
a convenient maeaure of the progress of aerobic
atilt purification:, Values of ? > 1 gre ~
imiicsi;:.an ta3R. 'hr r+.` :.e~p o ablectlonal.
STAT
Sanitized Copy Approved for Release 2011/06/29 :CIA-RDP80-00809A000600200131-5