Sulfite in Water - WS
SIAL/PE1541 - Proficiency Testing Material
Synonym: WS - Sulfite
Product Type: Chemical
application(s) | environmental |
concentration | in water |
format | matrix material |
packaging | ampule of 2 × 20 mL |
Quality Level | 100 ![]() |
Application: | Sulfite in Water - WS proficiency testing material is suitable for testing sulfite in water supply/drinking water. 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: | Sulfite in Water - WS proficiency testing material is produced in accordance with ISO/IEC 17043:2010. The PT portfolio allows our test components to offer significant performance data to monitor and prove competency to customers, accreditation bodies or both. 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 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. 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 Supply (WS) Matrix: Water Supply/Drinking water Analyte/s: Values of analytes vary lot to lot. All information regarding the use of Sulfite in Water - WS 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 |
Other Notes: | Are you new to Supelco® Proficiency Testing? Be sure to register your account details ![]() 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 ![]() 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) Drinking Water WS22-2 March 23 - May 6, 2022 WS23-2 March 22 – May 5, 2023 Quick-Turn Study (on demand proficiency test that is offereddepending on lot availability) |
Preparation Note: | Description • This PT sample is packaged as a 20 mL concentrate. • The solvent for this sample is water, stabilized with 0.5% EDTA. • The sample must be stored at 4 °C. Sample Preparation • Partially fill a 1000 mL volumetric flask with reagent-grade water (near 20 ºC). • Open ampule PE1541-20ML (be careful to avoid cuts on glass) and transfer 10.0 mL of concentrate to the volumetric flask. • Fill the flask to volume with reagent-grade water and mix gently. • The sample is now ready for immediate analysis. Reporting Instructions Report as SO3²- (sulfite) |
Storage and Stability: | Please refer to sample label for expiration date, specific storage temperature, and specific storage conditions. |
RIDADR | NONH for all modes of transport |
WGK Germany | nwg |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
UNSPSC | 41116107 |
Components | Sulfite 10-500 mg/L |