Stability and homogeneity of microbiological reference materials: some statistical models
dc.contributor.author | Heisterkamp SH | |
dc.contributor.author | Hoogenveen RT | |
dc.contributor.author | van Strijp-Lockefeer NGWM | |
dc.contributor.author | Hoekstra JA | |
dc.contributor.author | Havelaar AH | |
dc.contributor.author | Mooijman KA | |
dc.date.accessioned | 2017-02-20T08:06:38 | |
dc.date.issued | 1991-08-31 | |
dc.identifier | 148602003 | |
dc.description.abstract | Microbiological reference materials are being developed by the RIVM since several years. These materials consist of capsules filled with milkpowder artificially contaminated with a bacteria test strain of choice (i.e. Escherichia coli, Enterobacter cloacae, Salmonella typhimurium). Both from longterm stability tests, and from short-term challenge tests at different storage temperatures, it is clear that these materials cannot survive forever. Standard statistical techniques for quality control, assuming both a stable process and the Normal distribution cannot be used. In this report we will deal with these non-standard problems.<br> | |
dc.description.sponsorship | EG/BCR | |
dc.description.sponsorship | HIMH | |
dc.description.sponsorship | VHI | |
dc.format.extent | 48 p | |
dc.language.iso | en | |
dc.publisher | Rijksinstituut voor Volksgezondheid en Milieu RIVM | |
dc.relation.ispartof | RIVM Rapport 148602003 | |
dc.relation.url | http://www.rivm.nl/bibliotheek/rapporten/148602003.html | |
dc.subject | 11 | nl |
dc.subject | 91-4 | nl |
dc.subject | cusum-method | nl |
dc.subject | quasi-likelihood estimation | nl |
dc.subject | cfu | nl |
dc.title | Stability and homogeneity of microbiological reference materials: some statistical models | en |
dc.title.alternative | Stabiliteit en homogeniteit van microbiologisch referentiemateriaal: enkele statistische modellen | nl |
dc.type | Report | |
dc.date.updated | 2017-02-20T07:06:39Z | |
html.description.abstract | Microbiological reference materials are being developed by the RIVM since several years. These materials consist of capsules filled with milkpowder artificially contaminated with a bacteria test strain of choice (i.e. Escherichia coli, Enterobacter cloacae, Salmonella typhimurium). Both from longterm stability tests, and from short-term challenge tests at different storage temperatures, it is clear that these materials cannot survive forever. Standard statistical techniques for quality control, assuming both a stable process and the Normal distribution cannot be used. In this report we will deal with these non-standard problems.<br> |