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PEA1918

Supelco

Chromium (VI) in Impinger Solution

Proficiency Testing Material

NACRES:
NA.24

agency

EPA (Method 61/7199)

Quality Level

packaging

ampule of 1 × 20 mL

manufacturer/tradename

RTC A-1918

application(s)

environmental

format

matrix material

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.

Preparation Note

he PT sample is packaged as a 20mL concentrate.
The solvent for this sample is DI water.
The PT sample has not been preserved.
This PT is suitable for EPA Method 0061.

Sample preparation
To prepare solution, partially fill a 1000mL volumetric flask with reagent-grade water (near 20 ºC).
Shake ampule well prior to opening.
Open ampule PEA1918-20ML (be careful to avoid cuts on glass) and transfer 10.0 mL of concentrate to the volumetric flask.
Fill the flask to volume with reagent-grade water and mix well.
The sample is now ready for immediate analysis.

Other Notes

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 (2019-2020)

Air
AIR19-2 April 10 - May 24, 2019
AIR19-4 October 9 - November 22, 2019

AIR20-2 April 8 - May 22, 2020
AIR20-4 October 7 - November 20, 2020

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

Analyte

Description

    Chromium VI, Cr(VI) 45-880 μg/L

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

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