Hi, I just want to know if there are any guide or regulation related to Bioburden Holding time. In a previous experience we received a bioburden samples and never had a due date to put the test (holding time). Appreciate your help!! Cristian Gonzalez Microbiology [log in to unmask]<mailto:[log in to unmask]> Tel. 919-577-5372 ================================= The nature of this service is to provide a medium for communication. The specific statements and endorsements of individuals participating in the discussions are not necessarily those of The Microbiology Network, Inc., the PSDG, or the sponsors of the list. ------------------ The PSDGList (http://microbiol.org/psdglist.htm) is operated from The Microbiology Network (http://www.microbiol.org) and supported by our sponsors as a service to the scientific community. Please take a second to visit our sponsors' web sites and say thank you for their support of this service. BahnsonEnvironmental Specialties - http://www.eschambers.com/ Manufacturer of Quality Stability Chambers, Warm & Cold Rooms, Freezers and Ultra Low Storage Chambers with Complete Validation, Maintenance & Calibration Stability Environments, Inc., an affiliate of Solar Light Company, Inc. - http://www.StabilityEnvironments.com High quality controlled environmental walk-in rooms and reach-in chambers Full installation, validation and spare parts also available Hardy Diagnostics - http://www.HardyDiagnostics.com Provides a complete selection of laboratory and microbiology supplies for the clinical, industrial, and molecular biology research communities.