Sigma-Aldrich/Organophosphorus Pesticides - WI - WP/PE1118-2ML/2ML

Properties:

Description:

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 (2017-2018)

Wastewater
WP17-1 January 18 - March 3, 2017
WP17-2 March 29 - May 12, 2017
WP17-3A May 17 - June 30, 2017
WP17-3B July 12 - August 25, 2017
WP17-4 September 27 - November 10, 2017
WP17-5 November 22 - January 5, 2018

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

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

Preparation Note

This PT sample is provided as a concentrate requiring dilution into reagent water.
The PT sample can be evaluated for each analyte listed on the report form.
If there are any analytes in the above list you wish not to be evaluated for, leave the associated line blank on the report form.
This PT sample is packaged as a 1.5 mL concentrate.
The solvent for this sample is acetone.
The PT sample is not preserved.
The sample must be stored at 4 °C.

Sample preparation
Fill a 1000 mL Class A Volumetric Flask with 900 mL of organic free reagent water.
Allow the ampule concentrate to equilibrate to room temperature.
Open the ampule and pipet exactly 1.0 mL of the concentrate into the flask
Fill to volume and mix well.
This represents the sample for analysis.
Analyte concentration range 3.0 to 20.0 ug/L.
Report results in ug/L.

Safety:

Symbol 

  GHS02, GHS07