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PE1081 Supelco

Turbidity - WP

Proficiency Testing Material, Concentrate for dilution to 1L

  •  NACRES NA.24

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Properties

Related Categories Additional Standards, Analytical Standards, Analytical/Chromatography, DMRQA PTs, Proficiency Testing,
Quality Level   100
packaging   ampule of 1 × 20 mL
mfr. no.   RTC, PEI-250
concentration   in H2O
Featured Industry   Environmental

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.

Preparation Note

This PT sample is packaged as a 20mL concentrate.
The solvent for this sample is water.
The PT sample is not preserved.

Sample Preparation
Partially fill a 1000mL volumetric flask with reagent-grade water (near 20ºC). NOTE: The dilution volume has changed from previous studies so that the concentration can cover the entire NELAC range.
Invert ampule PE1081-20ML three times.
Open the ampule (be careful to avoid cuts on glass) and transfer 10.0 mL of concentrate to the volumetric flask.
Fill the volumetric flask to volume with reagent-grade water and mix well.
Calibrate your instrument as directed by the manufacturer.
Ensure that the solution is thoroughly mixed immediately prior to analysis.
DO NOT USE a matrix modifier with this sample. The matrix modifier will adversely affect your results.

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.
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Proficiency Testing Schedule (2020-2021)

Wastewater
WP20-1 January 15 - February 28, 2020
WP20-2 March 25 - May 8, 2020
WP20-3A May 13 - June 26, 2020
WP20-3B July 8 - August 21, 2020
WP20-4 September 23 - November 6, 2020
WP20-5 November 25 - January 8, 2021

WP21-1 January 13 - February 26, 2021
WP21-2 March 24 - May 7, 2021
WP21-3 July 7 - August 20, 2021
WP21-4 September 22 - November 5, 2021

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

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Description

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Turbidity 2.00 - 30.0 NTU    
Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN 3082 9 / PGIII
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles
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