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2.
J Food Prot ; 49(11): 891-892, 1986 Nov.
Article in English | MEDLINE | ID: mdl-30965496

ABSTRACT

A method utilizing centrifugal separation followed by membrane filtration recovered 31 to 61% of Giardia cysts from 38-L samples of water.

3.
J Food Prot ; 43(7): 563, 1980 Jul.
Article in English | MEDLINE | ID: mdl-30822971

ABSTRACT

Of 658 individual water supplies tested over an 8-year period, 69% of drilled wells, 62% of driven wells, 27% of dug wells and 32% of springs were judged acceptable on the basis of a single test for total coliforms. The acceptability standard consisted of 0 to 1 coliforms/100 ml of sample by the membrane filter method or a Most Probable Number index of less than 2.2 (presumptive and confirmed tests).

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