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PE1250 Supelco

Volatile Organic Compounds 1 - WP

Proficiency Testing Material, Concentrate for dilution to 100 mL

  •  NACRES NA.24



Related Categories Additional Standards, Analytical Standards, Analytical/Chromatography, Proficiency Testing, Water Pollution/Waste Water Organics,
Quality Level   100
packaging   ampule of 1.2 mL
mfr. no.   RTC, PEO-120-1
concentration   in methanol
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

The packsize on this sample has recently changed from 2ML to 1.2ML. This change does not affect the performance of the proficiency test.

This PT sample is packaged as a 1.2 mL concentrate.
The solvent for this sample is methanol.
The PT sample is not preserved.

Sample Preparation
Fill a 100mL Class A Volumetric Flask to volume with organic free reagent water.
Open ampule PE1250-1.2ML and withdraw 20μL of the solution using a gas tight microsyringe.
Inject the concentrate into the expanded area of the flask well below the surface of the water.
Stopper the flask and mix by gentle inversion 3 times. Excessive mixing will result in loss of volatiles and should be avoided.
This represents the sample for analysis.
DO NOT USE a matrix simulator with this sample.

Other Notes

Proficiency testing samples are presented as single blind. No values for the samples are released unti the testing period concludes. Values of analytes vary lot to lot.

Proficiency Testing Schedule (2020-2021)

WP20-1 January 15 - February 28, 2020
WP20-2 March 25 - May 8, 2020
WP20-3A May 13 - June 26, 2020
WP20-3B July 8 - August 21, 2020
WP20-4 September 23 - November 6, 2020
WP20-5 November 25 - January 8, 2021

WP21-2 March 24 - May 7, 2021
WP21-4 September 22 - November 5, 2021

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



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1,2,4-Trimethylbenzene 10-120 μg/L    
1,2-Dichlorobenzene 10-120 μg/L    
1,3,5-Trimethylbenzene 10-120 μg/L    
1,3-Dichlorobenzene 10-120 μg/L    
1,4-Dichlorobenzene 10-120 μg/L    
Benzene 10-120 μg/L    
Ethylbenzene 10-120 μg/L    
m+p-Xylene 10-150 μg/L    
Methyl tert-butyl ether (MTBE) 15-150 μg/L    
Naphthalene 15-150 μg/L    
o-Xylene 10-150 μg/L    
Toluene 10-120 μg/L    
Xylene, Total 20-300 μg/L    
Safety & Documentation

Safety Information

Signal word 
UN1230 - class 3 - PG 2 - Methanol, solution
WGK Germany 
Flash Point(F) 
Flash Point(C) 


Certificate of Analysis (COA)

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Protocols & Articles
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