EN 1040 Basic Bactericidal
Activity of Chemical
Disinfectants
Test Purpose
The European standard, EN 1040,
describes a suspension-based,
quantitative, microbiology lab
test for establishing the
capability of a client's product
to produce a reduction in the
number of viable bacterial cells
of relevant microorganisms under
conditions defined by the
standard.
Test Summary
A test suspension of bacterial
cells is added to a prepared
sample of the test substance
diluted with sterile deionized
water. At the Sponsor specified
contact time, an aliquot is
taken and the bactericidal
and/or bacteriostatic activity
is immediately suppressed by
dilution or filtration
neutralization. The number of
surviving bacteria in each
sample is determined standard
culture plating techniques and
the reduction in viable counts
is calculated.
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