Herbicides I - WS
SIAL/PE1486 - Proficiency Testing Material
Synonym: WS - Herbicides I
Product Type: Chemical
application(s) | environmental |
concentration | in tert-butyl methyl ether |
format | matrix material |
packaging | ampule of 2 × 2 mL |
Quality Level | 100 ![]() |
storage temp. | 2-8°C |
Application: | Herbicides I - WS is used as a proficiency testing material to test herbicides 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: | Herbicides I - WS proficiency testing material is produced in accordance with ISO/IEC 17043:2010. Also referred to as Potable Water or Water Supply sample, this sample is produced 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. 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 Herbicides I - 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 1.5 mL concentrate. • The solvent for this sample is MTBE. • The PT sample is not preserved. • The sample must be stored at 4 °C. Sample Preparation • Fill a 1000 mL Class A Volumetric Flask with 900 mL of organic-free reagent water. • Allow the ampule concentrate to equilibrate to room temperature. • Open the ampule and pipet exactly 1.0 mL of the concentrate into the flask. • Fill to volume and mix well. • This represents the sample for analysis. • Report results in μg/L. |
Storage and Stability: | Please refer to sample label for expiration date, specific storage temperature, and specific storage conditions. |
Symbol | ![]() ![]() |
Signal word | Danger |
Hazard statements | H225 - H315 - H412 |
Precautionary statements | P210 - P233 - P240 - P241 - P273 - P303 + P361 + P353 |
Hazard Codes | F,Xi |
Risk Statements | 11-38 |
Safety Statements | 16 |
RIDADR | UN 2398 3 / PGII |
WGK Germany | WGK 1 |
Flash Point(F) | -27.4 °F - closed cup - Sol |
Flash Point(C) | -33 °C - closed cup - Solve |
Storage Temp. | 2-8°C |
UNSPSC | 41116107 |
Components | 2,4,5-T 10-100 μg/L; 2,4-D Total 10-100 μg/L; 2,4-DB 20-120 μg/L; Acifluorfen 10-100 μg/L; Dalapon 10-100 μg/L; Dicamba 20-100 μg/L; Dinoseb (2-sec-butyl-4,6-dinitrophenol, DNBP) 7-70 μg/L; Pentachlorophenol 1-25 μg/L; Picloram 10-100 μg/L; Silvex (2,4,5-TP) 10-100 μg/L |