Properties:
| Related Categories | Additional Standards, Analytical Standards, Analytical/Chromatography, Proficiency Testing, Water Supply/Drinking Water Inorganics, |
| packaging | ampule of 1 × 2 mL |
| mfr. no. | RTC, PEI-1370 |
| concentration | in H2O |
| storage temp. | 2-8°C |
Description:
General description
This proficiency testing sample is produced in accordance with ISO/IEC 17043:2010. All information regarding the use of this material can be found in the reporting packet supplied for each sample.
Other Notes
Proficiency testing samples are presented as single blind. No values for the samples are released until the testing period concludes. Values of analytes vary lot to lot.
Proficiency Testing Schedule (2017-2018)
Drinking Water
WS17-1 January 18 - March 3, 2017
WS17-2 March 29 - May 12, 2017
WS17-3 July 12 - August 25, 2017
WS17-4 September 27 - November 10, 2017
WS18-1 January 17 - March 2, 2018
WS18-2 March 28 - May 11, 2018
WS18-3 July 11 - August 24, 2018
WS18-4 September 26 - November 9, 2018
Quick-Turn Study - (non-scheduled proficiency test that is available at any time)
Preparation Note
This PT sample is supplied as a 2mL concentrate.
The solvent for this sample is water.
The PT sample has been autoclaved for preservation.
Sample preparation
To prepare solution, partially fill a 1000-mL volumetric flask with ammonia-free, reagent-grade water (near 20 degrees C).
Open ampule PE1593-2ML (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 degrees C until just before analysis. Analyze the preserved sample as soon as possible within the maximum 28-day holding time.
