Log reduction definition

Log reduction means the reduction in the concentration of infective pathogens or surrogate parameters through a treatment process expressed in log10 units. For example, a 1-log reduction equates to 90-percent removal, 2-log reduction to 99-percent removal, and 3-log reduction to 99.9-percent removal.
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Log reduction means the base 10 logarithm of the ratio of raw water concentrations divided by the treated water concentration of total (or viable) Giardia cysts or viruses;
Sample 1
Log reduction means the removal of organisms expressed on a logarithmic scale. For example, a 99.9% is a 3-log removal; whereas a 99.99% is a 4-log removal.
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Examples of Log reduction in a sentence

  • We compare DISTDET with the state-of-the-art system audit log reduction approaches, i.e., NodeMerge [41] and Full Dependence (FD) [21], on theTable 8: Log reduction on the DARPA TC dataset.

  • Log reduction effect of DBD plasma treatment on polymeric materials samples (building) samples assayed against S.

  • Log reduction of RNA was based on real-time RT-PCR threshold cycle (Ct) and the slope of Ct versus the log number.

  • The antibacterial effect calculated as Log reduction was in the range of 6.5 to 7, being greater for S.

  • Bacterial spores shall be inactivated at a 4 Log reduction or greater.

  • Figure 17: Log reduction of Salmonella enterica on in-shell pecans comparison of inoculation placement(s) as a function of CAP treatment using actuator A3 at 2cm distance with the first 30 seconds 5 seconds off following 4.5 minutes of 20 seconds.

  • Log reduction in bacterial density between control and chlorinated plates was observed: 0.5 times at 1.2 mg L—1 continuous residuals, 0.5 times at 1.2 mg L—1 intermit- tent mode 2 h on/2 h off and 0.8 times at intermittent residuals of 1.2 mg L—1 4 h on/4 h off.

  • Log reduction stands for a 10-fold (or one decimal) or 90% reduction in numbers of live virus.

  • Log reduction was calculated as Log10reduction = mean log10 control – mean log10 treated sample.

  • Log reduction means a negative of the base 10 logarithm of the fraction of pathogens remaining after the treatment process.


More Definitions of Log reduction

Log reduction means a reduction in the concentration of a constituent or microorganism by a factor of 10. For example, a 1-log reduction would correspond to a reduction of 90 percent from the original concentration. A 2-log reduction corresponds to a reduction of 99 percent from the original concentration.
Sample 1
Log reduction means the base 10 logarithm of the ratio of raw water concentrations divided by the treated water concentration of total viruses;
Sample 1
Log reduction means a reduction of a factor of 10. A single log reduction means to reduce the concentration by a factor of 10 (i.e. 100 reduces to 10). A two log reduction is to reduce the concentration by a factor of 100 (i.e. 1,000 reduces to 10). A three log reduction is to reduce the concentration by a factor of 1,000 (i.e. 10,000 reduces to 10). And so on.
Sample 1
Log reduction means the logarithm base 10 of the ratio of the levels of a pathogenic organism or other contaminant
Sample 1
Log reduction means the logarithm base 10 of the ratio of the levels of a pathogenic organism or other contaminant before and after treatment. A reduction in the concentration of a contaminant or microorganism by a factor of 10. For example, 1 log reduction corresponds to a 90-percent reduction from the original concentration.
Sample 1
Log reduction means the removal of organisms expressed on a logarithmic scale. For
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Related to Log reduction

  • extended reduction means a reduction under this scheme for which a person is eligible under Part 12 (extended reductions);

  • Aggregate Reduction has the meaning specified in Section 1.3.

  • extended reduction period means the period for which a person is in receipt of an extended reduction in accordance with paragraph 89, 96 or 101;

  • Load Reduction Event means a reduction in demand by a Member or Special Member for the purpose of participating in the PJM Interchange Energy Market.

  • Reduction means measures designed to reduce or eliminate human exposure to lead-based paint hazards through methods including interim controls and abatement.

  • Waste reduction , or “pollution prevention” means the practice of minimizing the generation of waste at the source and, when wastes cannot be prevented, utilizing environmentally sound on-site or off-site reuse and recycling. The term includes equipment or technology modifications, process or procedure modifications, product reformulation or redesign, and raw material substitutions. Waste treatment, control, management, and disposal are not considered pollution prevention, per the definitions under Part 143, Waste Minimization, of the Natural Resources and Environmental Protection Act (NREPA), 1994 PA 451, as amended.

  • Proposed Reduction Date has the meaning set forth in Section 1.3.

  • Reduction in Force means abolition of positions in an agency or part of an agency and the corresponding nondisciplinary removal of affected employees from such positions through separation from employment or through displacement to other positions.

  • Source reduction means any practice that reduces the amount of any hazardous substance, pollutant, or contaminant entering any waste stream or otherwise released into the environment prior to recycling, energy recovery, treatment, or disposal.

  • Emission Reduction Credits or “ERC(s)” means emission reductions that have been authorized by a local air pollution control district pursuant to California Division 26 Air Resources; Health and Safety Code Sections 40709 and 40709.5, whereby such district has established a system by which all reductions in the emission of air contaminants that are to be used to offset certain future increases in the emission of air contaminants shall be banked prior to use to offset future increases in emissions.

  • Reduction Date has the meaning set forth in Section 20.1B.

  • Appraisal Reduction Amount shall have the meaning assigned to such term in the Servicing Agreement or such other analogous term used in the Servicing Agreement.

  • alternative maximum council tax reduction means the amount determined in accordance with paragraph 31 and Schedule 4;

  • Appraisal Reduction Event With respect to any Serviced Loan, the earliest of (i) the date on which such Serviced Loan becomes a Modified Asset, (ii) the date on which such Serviced Loan is 60 days or more delinquent in respect of any Monthly Payment, which does not include a Balloon Payment, (iii) solely in the case of a delinquent Balloon Payment, (A) the date occurring 60 days after the date on which such Balloon Payment was due (except as described in the immediately following clause (B)) or (B) if the related Mortgagor has delivered to the Master Servicer (who shall promptly deliver a copy thereof to the Special Servicer) or the Special Servicer (who shall promptly deliver a copy thereof to the Master Servicer) a refinancing commitment acceptable to the Special Servicer prior to the date 60 days after the Balloon Payment was due, the date occurring 120 days after the date on which the Balloon Payment was due (or such shorter period beyond the date on which that Balloon Payment was due during which the refinancing is scheduled to occur), (iv) the date on which the related Mortgaged Property has become an REO Property, (v) a receiver or similar official is appointed and continues for 60 days in such capacity in respect of the related Mortgaged Property, (vi) 60 days after the related Mortgagor is subject to a bankruptcy, insolvency or similar proceedings, which, in the case of an involuntary bankruptcy, insolvency or similar proceeding, is not dismissed within those 60 days, or (vii) the date on which such Serviced Loan remains outstanding five (5) years following any extension of its maturity date pursuant to Section 3.24 of this Agreement. If an Appraisal Reduction Event occurs with respect to any Serviced Mortgage Loan that is part of a Serviced Loan Combination, then an Appraisal Reduction Event shall be deemed to have occurred with respect to the related Serviced Companion Loan(s). If an Appraisal Reduction Event occurs with respect to any Serviced Companion Loan that is part of a Serviced Loan Combination, then an Appraisal Reduction Event shall be deemed to have occurred with respect to the related Serviced Mortgage Loan and any other Serviced Companion Loan(s) included as part of that Serviced Loan Combination. No Appraisal Reduction Event may occur at any time when the aggregate Certificate Balance of all Classes of Principal Balance Certificates (other than the Class A-1, Class A-2, Class A-3, Class A-4 and Class A-AB Certificates) has been reduced to zero. The Special Servicer shall notify the Master Servicer and the Master Servicer shall notify the Special Servicer, as applicable, promptly upon the occurrence of any of the foregoing events.

  • FX Reduction Amount is defined in Section 2.1.3.

  • Debt Service Reduction With respect to any Mortgage Loan, a reduction in the scheduled Monthly Payment for such Mortgage Loan by a court of competent jurisdiction in a proceeding under the Bankruptcy Code, except such a reduction resulting from a Deficient Valuation.

  • Relief Act Reduction With respect to any Mortgage Loan as to which there has been a reduction in the amount of the interest collectible thereon as a result of the application of the Servicemembers Civil Relief Act, any amount by which interest collectible on such Mortgage Loan for the Due Date in the related Due Period is less than the interest accrued thereon for the applicable one-month period at the Mortgage Interest Rate without giving effect to such reduction.

  • Commitment Reduction Notice has the meaning given that term in Section 2.13.

  • Cumulative Appraisal Reduction Amount As of any date of determination by the Special Servicer, the sum of (i) all Appraisal Reduction Amounts then in effect, and (ii) with respect to any AB Modified Loan, any Collateral Deficiency Amount then in effect. The Certificate Administrator and the Master Servicer shall be entitled to conclusively rely on the Special Servicer’s calculation or determination of any Cumulative Appraisal Reduction Amount. None of the Master Servicer, the Trustee nor the Certificate Administrator shall calculate or verify any Cumulative Appraisal Reduction Amount.

  • maximum council tax reduction amount means the amount determined in accordance with paragraph 29;

  • Potential Change in Control Period shall commence upon the occurrence of a Potential Change in Control and shall lapse upon the occurrence of a Change in Control or, if earlier (i) with respect to a Potential Change in Control occurring pursuant to Section 18.15(A), immediately upon the abandonment or termination of the applicable agreement, (ii) with respect to a Potential Change in Control occurring pursuant to Section 18.15(B), immediately upon a public announcement by the applicable party that such party has abandoned its intention to take or consider taking actions which if consummated would result in a Change in Control or (iii) with respect to a Potential Change in Control occurring pursuant to Section 18.15(C) or (D), upon the one year anniversary of the occurrence of a Potential Change in Control (or such earlier date as may be determined by the Board).

  • Salary reduction plan means a benefit plan whereby state and

  • Overcollateralization Reduction Amount With respect to any Distribution Date on which the Excess Overcollateralization Amount is, after taking into account all other distributions to be made on such Distribution Date, greater than zero, the Overcollateralization Reduction Amount shall be equal to the lesser of (i) the Excess Overcollateralization Amount for that Distribution Date and (ii) the Principal Remittance Amount on such Distribution Date.

  • Relief Act Reductions With respect to any Distribution Date and any Mortgage Loan as to which there has been a reduction in the amount of interest collectible thereon for the most recently ended calendar month as a result of the application of the Relief Act, the amount, if any, by which (i) interest collectible on such Mortgage Loan for the most recently ended calendar month is less than (ii) interest accrued thereon for such month pursuant to the Mortgage Note.

  • reduction week means a period of seven consecutive days beginning with a Monday and ending with a Sunday;

  • Reduction Event means any of the following: