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PE1031 Supelco

TSS/pH (whole volume) in Seawater - WS

Proficiency Testing Material



Related Categories Additional Standards, Analytical Standards, Analytical/Chromatography, Proficiency Testing, Water Pollution/Waste Water - Sea Water Matrix,
Quality Level   100
packaging   bottle of 1 × 500 mL
mfr. no.   RTC, PEI-300S
concentration   in H2O
Featured Industry   Environmental
storage temp.   2-8°C


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 sample is packaged in a 500 mL HDPE bottle containing approximately 500 mL of solution.
This sample should be stored at 18-20 ºC.
This sample is not preserved.

Sample preparation
This sample has been prepared as a whole volume standard and is ready to analyze as received.
Recap immediately after use.
Shake sample well prior to opening.
Analyze for pH first. Then shake sample again and analyze per your normal laboratory procedures for residue.
The suspended solids may settle over a period of time. It is recommended that you shake the sample prior to every use.

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 (2020-2021)

Drinking Water
WS20-1 January 15 - February 28, 2020
WS20-2 March 25 - May 8, 2020
WS20-3 July 8 - August 21, 2020
WS20-4 September 23 - November 6, 2020

WS21-1 January 13 - February 26, 2021

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



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pH 5-10 units    
Non-Filterable Residue (TSS) 23-100 mg/L    
Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Protocols & Articles
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08168 Timestrip Plus 8 °C

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