BTEX/MTBE in Soil - PT

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.

The PT sample is a soil containing the BTEX components of gasoline and MTBE. The PT sample size provided is 25 g of soil. The soil has been preserved with 25 mL of methanol. The PT sample has been sized to 100 mesh. The evaluation of result will be based on windows determined by ADEC. The sample was fortified with BTEX components to be extracted and analyzed using method AK101. This sample can also be analyzed by other methods including but not limited to EPA 8021 and IOWA OA-1. This sample can also be analyzed for MTBE and trimethylbenzenes. If you wish to report these analytes and they are not listed on your report form, contact RTC for additional forms.

Sample Preparation
The 25 g soil sample is preserved in 25 mL methanol.
Report results on a wet weight basis. All analytes are reported in mg/Kg.

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 (2018-2019)

Soils
LPTP18-S1January 31 - March 16, 2018
LPTP18-S2April 11 - May 25, 2018
LPTP18-S3July 25 - September 7, 2018
LPTP18-S4October 10 - November 23, 2018

LPTP19-S1January 30 - March 15, 2019
LPTP19-S2April 10 - May 24, 2019
LPTP19-S3 July 24 - September 6, 2019
LPTP19-S4 October 9 - November 22, 2019

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