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PE1608 Supelco

BTEX in Water - AK - PT

Proficiency Testing Material



Related Categories Additional Standards, Analytical Standards, Analytical/Chromatography, Proficiency Testing, Underground Storage Tank PTs (UST),
packaging   ampule of 1 × 2 mL
mfr. no.   RTC, PEO-114AK
concentration   in methanol
Featured Industry   Environmental
storage temp.   2-8°C


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 unti the testing period concludes. Values of analytes vary lot to lot.

Proficiency Testing Schedule (2018-2019)

WP18-1 January 17 - March 2, 2018
WP18-2 March 28 - May 11, 2018
WP18-3A May 16 - June 29, 2018
WP18-3B July 11 - August 24, 2018
WP18-4 September 26 - November 9, 2018
WP18-5 November 21 - January 4, 2019

WP19-1 January 16 - March 1, 2019
WP19-2 March 27 - May 10, 2019
WP19-3A May 15 - June 28, 2019
WP19-3B July 10 - August 23, 2019
WP19-4 September 25 - November 8, 2019
WP19-5 November 20 - January 3, 2020

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

Preparation Note

This PT sample is packaged as a 1.5 mL concentrate.
The solvent for This sample is methanol.
The PT sample is not preserved.

Sample preparation
Fill a 100 mL Class A Volumetric Flask with 90 mL of organic free reagent water.
Allow the ampule concentrate to equilibrate to room temperature.
Open the ampule and pipet exactly 20 μL of the concentrate into the flask.
Fill to volume.
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.



Product #

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Benzene 5-30 μg/L    
Ethylbenzene 5-30 μg/L    
Methyl tert-butyl ether (MTBE) 5-30 μg/L    
Toluene 5-30 μg/L    
m+p-Xylene 5-30 μg/L    
o-Xylene 5-30 μg/L    
Xylene, total 5-60 μg/L    
Safety & Documentation

Safety Information

Signal word 
Hazard statements 
UN1230 - class 3 - PG 2 - Methanol, solution
WGK Germany 
Flash Point(F) 
51.8 °F
Flash Point(C) 
11 °C


Certificate of Analysis

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products.Once you log onto our website, you will find the price and availability displayed on the product detail page.You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 orview local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
Are Certificates of Analysis created forRTC proficiency testing products?
Certificates of Analysis are not available for RTC proficiency testing products. Those are the samples with the SPE or PE prefix in the part number.
My question is not addressed here, how can I contact Technical Service for assistance?
Ask a Scientist here.
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Protocols & Articles
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