Sigma-Aldrich/Metals in Sewage Sludge - PT/SPE001S-30G/30G

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 until the testing period concludes. Values of analytes vary lot to lot.

Proficiency Testing Schedule (2017-2018)

Soils
LPTP17-S1 February 1 - March 17, 2017
LPTP17-S2 April 12 - May 26, 2017
LPTP17-S3 July 26 - September 8, 2017
LPTP17-S4 October 11 - November 24, 2017

LPTP18-S1 January 31 - March 16, 2018
LPTP18-S2 April 11 - May 25, 2018
LPTP18-S3 July 25 - September 7, 2018
LPTP18-S4 October 10 - November 23, 2018

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

Preparation Note

This natural matrix sludge was collected from a municipal sewage treatment plant and fortified to meet NELAC requirements. Due to the nature of sewage sludge some analytes may exceed the NELAC range.
The PT sample contains 26 NELAC metals plus strontium, titanium, and silicon reported as Si. The PT sample can be analyzed for ammonia as N, TKN, total phoshorus, TOC, and total solids. A total sample size of 100 g is provided.
The PT sample has been sterilized and sized to 100 mesh. Recommended storage condition is 4º C.
The evaluation of results will be based on study statistics for equivalent methods. Determine the metals present, the concentration, and report your results on the analysis data sheet provided. If multiple methods are used for preparation and/or analysis, a separate report form must be used for each preparation and analysis method.

Sample Preparation
Perform the sample digestion on an appropriate amount of sample according to the selected digestion procedure.
Determination of the percent moisture content of the material is required. Report all results on a dry weight basis.
It is recommended that approximately one gram of the soil be digested for metals analysis.

Safety:

Symbol 

  GHS07, GHS08, GHS09