PE1364 Supelco

Anions - WS

Proficiency Testing Material, (Concentrate for dilution to 500 mL)

  •  NACRES NA.24



Related Categories Additional Standards, Analytical Standards, Analytical/Chromatography, Proficiency Testing, Water Supply/Drinking Water Inorganics,
Quality Level   100
packaging   ampule of 1 × 20 mL
mfr. no.   RTC, PEI-011
concentration   in H2O
Featured Industry   Environmental


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.

Preparation Note

This PT sample is packaged as a 20 mL concentrate.
The solvent for this sample is water.
The PT sample has been autoclaved for preservation.
The sample must be stored at 4 degrees Celsius.

Sample preparation

All constituents are present in soluble form.
Partially fill a 500-mL volumetric flask with reagent-grade water (near 20 ºC).
Open ampule PE1364-20ML (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 well.
The sample is now ready for immediate analysis.
Sealed ampules were autoclaved to preserve the solutions inside. This preservation treatment is not effective after the ampule is opened. Therefore the sample should be analyzed as soon as possible after sample preparation following the preservation and holding times as specified in the method.

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 (2020-2021)

Drinking Water
WS20-1 January 15 - February 28, 2020
WS20-2 March 25 - May 8, 2020
WS20-3 July 8 - August 21, 2020
WS20-4 September 23 - November 6, 2020

WS21-1 January 13 - February 26, 2021
WS21-2 March 24 - May 7, 2021
WS21-3 July 7 - August 20, 2021
WS21-4 September 22 - November 5, 2021

Quick-Turn Study - (non-scheduled proficiency test that is available at any time)



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Chloride 20-160 mg/L    
Fluoride 1-8 mg/L    
Nitrate as NO3 1-100 mg/L    
Nitrate as N 3-10 mg/L    
Nitrate+nitrite as N 3-10 mg/L    
Nitrite as NO2 1-100 mg/L    
Nitrite as N 0.400 - 2.00 mg/L    
Orthophosphate as P 0.500 - 5.50 mg/L    
Phosphate as PO4 1-100 mg/L    
Phosphorus, total 0.500 - 5.50 mg/L    
Sulfate 25-250 mg/L    
Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Protocols & Articles
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