WS-Microbiological PT - Sample (1-10)
SIAL/MIC001 - Proficiency Testing Material
Product Type: Chemical
| application(s) | environmental food and beverages |
| matrix | Vitroid™ |
| packaging | set of 10 ea |
| Quality Level | 100  |
| shipped in | wet ice |
| storage temp. | −20°C |
| Application: | Water Supply (WS) - Microbiological PT - Sample (1-10) is an environmental/microbiolog Have any questions? Explore our FAQs . For more information on this product, please contact our PT Service Team . |
| Features and Benefits: | We have a vast portfolio of environmental PT schemes with "fit-for-purpose" samples to help you meet the needs of the laboratory. Our proficiency testing (PT) program is a benchmark to: • provide staff with an insight into their laboratory′s performance, to verify the accuracy and reliability of their testing process • provide a comparison of performance with that of other laboratories, nationally and internationally • test and educate staff, provide a better understanding of the impact of incorrect results and identify areas where there may be problems • provide an independent evaluation of laboratory performance • demonstrate to clients, colleagues and accreditation bodies that there is a commitment to quality |
| General description: | Water Supply (WS) - Microbiological PT - Sample (1-10) is produced in accordance with ISO/IEC 17043:2010. Also referred to as Potable Water or Water Supply sample, this sample is manufactured according to TNI requirements. However, please note, this sample may include non-TNI analytes as well. The lower criteria from the TNI tables mimic the levels common to drinking water samples. Supelco® is a global proficiency testing (PT) provider that manufactures best-in-class environmental and pharmaceutical PT products. Most water PT samples are available as concentrates or ready-to-use volumes giving the end-user flexibility in selecting samples that will fit their exact needs. Our WS program is designed to meet the quality assurance requirements in compliance with the Safe Drinking Water Act (SDWA), thereby ensuring the analytical competence of your laboratory or drinking water facility. Type of PT Scheme: Water analysis - Water Supply (WS) Matrix: Water Supply/Drinking water Analyte/s: Values of analytes vary lot to lot. All information regarding the use of Microbiological PT - Sample (1-10) proficiency testing standard can be found in the reporting packet which will be available to download at PT Portal . |
| Legal Information: | Supelco is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Legal Information: | Vitroid is a trademark of Sigma-Aldrich Co. LLC |
| Other Notes: | Are you new to Supelco® Proficiency Testing? Be sure to register your account details in the PT Portal before placing your order. This will provide access to data entry, reporting packets and final reports. Registrations will be approved shortly after your order is placed. For further questions, write to us at ptservice@milliporesigma. When placing your order online, please indicate your study preference under the ′your reference′ column. Available studies can be viewed at the bottom of the page. Click here to learn more about Quick-Turn Studies (on-demand proficiency tests that are offered depending on lot availability). The Quick-Turn results are released within 48-72 hours whereas scheduled study reports are released within 21 days.Proficiency testing samples are presented as single blind. No values for the samples are released until the testing period concludes. This product contains proficiency testing sample(s) for analysis by your laboratory. Result of these measurements are to be reported within the timeframe of a study listed below. When ordering this product, select the appropriate study option for your laboratory′s requirements. Set contains 10 sterile screw cap vials each containing a Vitroid™ (a small disk containing the possible organisms) and 10 - 99 mL bottles of phosphate buffer. Each sample vial is uniquely marked with a sample number. The vials containing the dehydrated sample must be stored as directed. The dehydrated Vitroid™ sample is stable for a time exceeding the study schedule. Proficiency Testing Schedule (2022-2023) Drinking Water WS22-1 January 12 – February 25, 2022 WS22-2 March 23 - May 6, 2022 WS22-3 July 6 - August 19, 2022 WS22-4 September 21 - November 4, 2022 WS23-1 January 11 – February 24, 2023 WS23-2 March22 – May 5, 2023 WS23-3 July 5 – August 18, 2023 WS23-4 September 20 – November 3, 2023 Quick-Turn Study (on demand proficiency test that is offereddepending on lot availability) |
| Preparation Note: | Description • This sample set contains 10 vials containing a dehydrated tablet with possible organisms. The bacteria are provided in dehydrated form for enhanced stability. • Each sample vial is uniquely marked with numbers 1 through 10. Remember to label your containers with the corresponding sample number and the study number prior to hydrolyzing the samples. • The sample is the colored disc. Rehydrate each disc using 100mL of Buffer. Ensure the disc has dissolved completely (no color remains). • The vitroids must be re-hydrated prior to performing the tests. The vials holding the bacteria are sterile in the sealed box. Once the box is opened it is recommended hydration and analysis is started immediately. Each disc contains a high concentration of bacteria. Before you begin, make certain that appropriate methods and media are being used. Label each dilution bottle with the sample number, the study number prior to hydrolyzing the samples. All of these numbers can be found on the vial labels. Make sure to use a permanent marker that is water insoluble. If you are using an enzyme substrate test follow manufacturer′s instructions. If the result is questionable at the end of the incubation period, you may incubate for an additional 4 hours or as provided in the method. It is important that you report values for both Total Coliform and Fecal/E.Coli Coliform. You must report all samples to receive an evaluation. Preparation Instructions • Allow the samples to equilibrate to room temperature. Aseptically transfer a dehydrated tablet to your container that contains 100ml buffer solution. The tablet will dissolve completely in about 15 minutes. Repeat the above procedure with each sample. Due to the sensitivity of the organisms, analysis should be completed within 1 hour of hydration. Each sample will contain a concentration of bacteria from 20 to 500 CFU/100mL. You may dilute the sample with buffer to meet your method needs. Reporting Instructions Analyze the sample by your normal procedures and report results for each sample as present (“1”) or absent (“0”) on the enclosed report form. If you enumerate, report in the space provided for MPN or cfu/100mL. |
| Storage and Stability: | • Please refer to the sample label for storage conditions. Note: We are no longer supplying Phosphate buffer for Micro samples. Please proceed to use your laboratory′s buffer or saline solution. If your laboratory does not have buffer in-house, we recommend using P3813, Phosphate Powder which can be purchased at SigmaAldrich.com. |
| RIDADR | UN3373 - class 6.2 Biological substance, Category B |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Storage Temp. | −20°C |
| UNSPSC | 12352200 |
| Components | Total coliforms 0.00 - 500 CFU/100mL; Escherichia coli 0.00 - 500 CFU/100mL; Fecal coliforms 0.00 - 500 CFU/100mL |