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-1376 |
concentration | in 1-propanol |
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 as a 2 mL concentrate.
The solvent for this sample is n-propanol.
The sample is suitable for methods EPA 1664, SM 5520B and other gravimetric methods. It is not suitable for IR methods.
The PT sample has not been preserved.
Sample preparation
To prepare solution, add 994 mL of reagent-grade water and 5 mL of 1:1 Hydrochloric Acid to a 2-L separatory funnel.
Open ampule I-019 (be careful to avoid cuts on glass) and transfer 1.0 mL of concentrate to the separatory funnel.
Mix well.
The sample is now ready for immediate analysis.
The sample should be analyzed with an approved gravimetric method because it is not suitable for an infrared method.
For calculations, assume that initial sample volume was 1000 mL.