These are some of the most common questions and answers about the Proficiency Testing Portal.
If you cannot find your question in the list below, please login and submit your question.
What does TNI method mean?
TNI analyte codes help the lab identify TNI analytes. While all of our samples are allocated a code, not all analytes are TNI. The directory for TNI analyte codes can be found at: https://nelac-institute.org/content/NEPTP/TNIcodes.php. For more in...
Do you offer custom proficiency testing (PT) services?
To create a custom proficiency test (PT), we require the commitment of eight laboratories that are willing to participate in the analysis of the sample. This ensures a robust and representative evaluation process for the custom PT.
What is the difference between a scheduled study and a quick turn?
Scheduled studies run on a pre-defined schedule meaning that you will receive the samples when the study begins. Your lab then has the full duration of the study (45 days) to analyze and submit the results. Once the study closes, it takes ap...
What is the difference between a scheduled study and a quick-turn study report?
The scheduled study report offers comprehensive graphical comparisons along with a final evaluation report presented in the form of a Z score. On the other hand, the quick turn study report focuses on evaluating results against the assigned value ...
Please note CoA's are not available for PT Items. If you've ordered a QC Item, please see the steps below for how to find it.
A) COAs are available to download online at sigmaaldrich.com.
Once you are on the website, click Support and then C...
We offer both organic and inorganic PTs for environmental and pharmaceutical testing.
Please search our offering below using shortcut CTRL+F and searching by part number, sample name, or any of the following schemes: Waste Water, Drinking ...
I have a question regarding a specific PT sample. Who do I contact?
You can email our PT Service team at email@example.com or firstname.lastname@example.org for general questions about reporting packets, reporting questions etc. as well as preparation instructions or specific sample technical questi...
Study schedules are posted on the product page for each sample at www.sigmaaldrich.com/pt. Please note, product/study availability has changed.
What do the codes mean (e.g. WP22-2)?
WP means Water Pollution this will indicate a medium to high level water matrix sample.
WS means Water Supply this will indicate a low level water matrix sample.
LPTP means Laboratory Proficiency Testing Program and these are our soil and so...
Country Code / CountrySales Rep First NameSales Rep Last NameSales Rep Email
AE;United Arab EmiratesLennetMaduraylennet.email@example.com
Find the samples needed and request they are to be sent as a quick turn.
These samples will be dispatched as soon as possible.
You have 45 days from time of shipment to complete the analysis.
If you complete the analysis quicker than 45 d...
Once you have registered your laboratory through the PT Portal, you can order your PT sample using your normal ordering process. If you need assistance, please email PTService@milliporesigma.com to find your sales representative or view the FAQ Ho...
I don't have a lab code. What is this and how do I get one?
A lab code is a unique code that allows us to identify your lab, ensure you get the correct samples and that the results are sent to the correct person(s).
You can register your laboratory through the PT Portal.
Your registration will be app...
Please allow 48-72 hours for your report to be released. Once available, they will be sent via email and will also be available to download once you are logged into your PT Dashboard under your "Reports" tab.
If your report is urgent, ple...
I have the samples and have analyzed them, how do I report the results?
Log on to the PT Portalto enter your results. If you need some further guidance, please refer to the training video on the FAQs page.
My products have arrived and I didn't receive any prep instructions, where can I get these?
Reporting packets/prep instructions can be found on the data entry screen of the PT Portal. Select your study and then click reporting packet under step one on your data entry page. Select this and download or print the reporting packe...
I have several analysts who want to enter data, can I do this?
Yes, you can set up many different people with separate logins and even different levels of access as required.
Once you have access to the PT Portal, go to “My Account” to set up additional lab personnel. You can also type in the analyst...