Determining the concentration of microorganisms controlled by attributes sampling plans

Autor:	Martin B. Cole, Susanne Dahms, J. David Legan, Mark H. Vandeven
Rok vydání:	2001
Předmět:	education.field_of_study Computer science business.industry Control (management) Population Sampling (statistics) Plan (drawing) Food safety Standard deviation Normal distribution Statistics education business Food Science Biotechnology
Zdroj:	Food Control. 12:137-147
ISSN:	0956-7135
DOI:	10.1016/s0956-7135(00)00033-5
Popis:	We present a method of translating the performance of attributes sampling plans, such as those recommended by the International Commission on Microbiological Specifications for Foods (ICMSF), so that the user can estimate the concentration of organisms that any plan may control. The method is based on the assumption that sampling results for organisms in foods are log-normally distributed. The normal distribution of log counts is used to estimate the proportion of defective (and marginally acceptable) material for a population of known (or, more usually, estimated) mean and standard deviation and then to determine the probability of acceptance. The method is presented in the form of a spreadsheet and is fully described and illustrated with examples of the performance of ICMSF plans in terms of concentrations of organisms controlled. The use of this approach to validate the use of sampling plans to meet a given performance criterion towards meeting a Food Safety Objective is also discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2cc2b4eb6d7251bd2f46464cee78c869 https://doi.org/10.1016/s0956-7135(00)00033-5 Zobrazit plný text záznamu Full Text from ScienceDirect