PAHs - WP Concentrate for dilution to 1L

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.

Preparation Note
This PT sample is packaged as a 1.5 mL ampule containing a concentrate of PAH compounds in acetone. The PT sample is not preserved.

Sample Preparation
When prepared according to instructions, the concentration of each analyte will be less than 200 μg/L.
To prepare solution, add 1L of reagent water to a 2L separatory funnel.
Open ampule PE1173-2ML (be careful to avoid cuts on glass) and transfer exactly 1.0 mL of the concentrate to the separatory funnel.
Mix well.
The sample is now ready for analysis.
For calculations, assume initial sample volume was 1000 mL.
Matrix Modifier: MMW-001 is intended to modify the products to simulate a waste water sample. The final dilution will replace the use of DI (Reagent Grade) water for the preparation of the appropriate CRM/QC sample. The sample will add turbidity and TSS to the final volume. These do not affect the properties of the analytes of interest in the final sample if prepared according to instructions. To use the matrix modifier simply mix Waste Water Matrix Modifier as specified in the MMW-001 instructions; use this solution in place of the reagent grade water in the instructions above.
Note - filtration may be necessary as required by your method.