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PE1153
Nitrite - WP
Proficiency Testing Material, Concentrate for dilution to 1 L
All Photos(1)
NACRES:
NA.24
Recommended Products
Quality Level
packaging
ampule of 2 × 2 mL
concentration
in water
application(s)
environmental
format
matrix material
Related Categories
General description
Nitrite - WP proficiency testing material is produced in accordance with ISO/IEC 17043:2010. Also referred to as non-Potable water or Water Pollution sample, this product is produced according to TNI requirements. However, please note, this sample may include non-TNI analytes as well. The higher criteria from the TNI tables mimic the levels common to wastewater samples. The PT portfolio allows our test components to offer significant performance data to monitor and prove competency to customers, accreditation bodies or both.
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 WP program is designed to meet the quality assurance requirements in compliance with Discharge Monitoring Report - Quality Assurance Program (DMR-QA), thereby ensuring the analytical competence of your laboratory.
These samples are typically provided in duplicate for use in case of lab mishap, for QC purposes or to analyze multiple methods.
Type of PT Scheme: Water analysis - Water Pollution (WP)
Matrix: Water Pollution/Wastewater
Analyte/s: Values of analytes vary lot to lot.
All information regarding the use of Nitrite - WP can be found in the reporting packet which will be available to download at PT Portal.
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 WP program is designed to meet the quality assurance requirements in compliance with Discharge Monitoring Report - Quality Assurance Program (DMR-QA), thereby ensuring the analytical competence of your laboratory.
These samples are typically provided in duplicate for use in case of lab mishap, for QC purposes or to analyze multiple methods.
Type of PT Scheme: Water analysis - Water Pollution (WP)
Matrix: Water Pollution/Wastewater
Analyte/s: Values of analytes vary lot to lot.
All information regarding the use of Nitrite - WP can be found in the reporting packet which will be available to download at PT Portal.
Application
Nitrite - WP is an inorganic non-potable water (NPW) PT standard, suitable for testing nitrites in water pollution/wastewater.
Have any questions? Explore our FAQs.
For more information on this product, please contact our PT Service Team.
Have any questions? Explore our FAQs.
For more information on this product, please contact our PT Service Team.
Packaging
2 mL
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:
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
Preparation Note
Description
Sample Preparation
- This PT sample is supplied as a 2 mL concentrate.
- The solvent for this sample is water.
- The PT sample has been autoclaved for preservation.
Sample Preparation
- To prepare the solution, partially fill a 1000 mL volumetric flask with ammonia-free, reagent-grade water (near 20 ºC).
- Open ampule PE1153-2ML (be careful to avoid cuts on glass) and transfer 1.0 mL of concentrate to the volumetric flask.
- Fill the volumetric flask to volume with reagent-grade water and mix well.
- The sample is now ready for immediate analysis.
- If a solution is not to be analyzed within two days after preparation, preserve a sample aliquot with 0.2 mL of concentrated sulfuric acid per 100 mL of sample (pH<2) and store at 4 °C until just before analysis.
- Analyze the preserved sample as soon as possible within the maximum 28-day holding time.
Storage and Stability
Please refer to sample label for expiration date, specific storage temperature, and specific storage conditions.
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.com.
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.
Proficiency Testing Schedule (2022-2023)
Wastewater
WP22-1 January 12 – February 25, 2022
WP22-2 March 23 - May 6, 2022
WP22-3 July 6 - August 19, 2022
WP22-4 September21 - November 4, 2022
WP23-1 January 11 – February 24, 2023
WP23-2 March 22 – May 5, 2023
WP23-3 July5 – August 18, 2023
WP23-4 September 20 – November 3, 2023
DMR-QA (US customers only)
DMR-QA 43 2023 Dates TBD
Quick-Turn Study (on demand proficiency test that is offereddepending on lot availability)
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.com.
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.
Proficiency Testing Schedule (2022-2023)
Wastewater
WP22-1 January 12 – February 25, 2022
WP22-2 March 23 - May 6, 2022
WP22-3 July 6 - August 19, 2022
WP22-4 September21 - November 4, 2022
WP23-1 January 11 – February 24, 2023
WP23-2 March 22 – May 5, 2023
WP23-3 July5 – August 18, 2023
WP23-4 September 20 – November 3, 2023
DMR-QA (US customers only)
DMR-QA 43 2023 Dates TBD
Quick-Turn Study (on demand proficiency test that is offereddepending on lot availability)
Legal Information
Supelco is a registered trademark of Merck KGaA, Darmstadt, Germany
Analyte
Description
Nitrite as N .4-4 mg/L
Storage Class Code
12 - Non Combustible Liquids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificate of Analysis
Enter Lot Number to search for Certificate of Analysis (COA).
Certificate of Origin
Enter Lot Number to search for Certificate of Origin (COO).
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
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