Sigma-Aldrich/Gasoline in Water - PT/PE1798-2ML/2ML

Properties:

Description:

Frequently Asked Questions

Frequently Asked Questions are available for this Product.

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 ampule contains a concentrate of a blended gasoline from three different sources in methanol.
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 volumetric flask to volume with carbon-filtered reagent-grade water at room temperature.
Open ampule PEO-010 (be careful to avoid cuts on glass) and immediately withdraw 20 μL.
Quickly inject the 20 μL aliquot into the reagent water in the expanded area of the volumetric flask.
Mix the sample by inverting the flask three times only (excessive shaking results in loss of volatiles) and analyze immediately

Safety:

Symbol 

  GHS02, GHS06, GHS08