Deposition and Soil Solution Ringtest and QA/QC information

Atmospheric deposition and soil solution Working Ringtest programme

Anna KOWALSKA

IBL - Forest Research Institute

3 Braci Lesnej St.

05-090-Raszyn

POLAND 

Email: A.Kowalska@ibles.waw.pl​

The Atmospheric deposition and soil solution Working Ringtest programme is running biannually. The normal schedule is:

  • Informing the possible participating labs via email (end of each even year - e.g. 2018, 2020, 2022, ...)
  • Registration of the participants via internet (end of each even year)
  • Distribution of the test samples and the invoice (end of each even year)
  • Data submission by the labs (beginning of each uneven year - e.g. 2019, 2021, 2023, ...)
  • Deadline of data submission (beginning of each uneven year)
  • Results (beginning of each uneven year)
  • Re-qualification process finished (winter/spring of each uneven year)

The ringtest is financed with a participation fee and ringtest sample preparation from participants.

Instructions for ringtest sample preparation

If you want to participate and you need a labcode or/and a password - please, contact Anna Kowalska.

Webinterface for registration and data submisson

Evaluation procedure

Requalification procedure

Reports from older tests

8th Deposition and soil solution working ringtest 2017

7th Deposition and soil solution working ringtest 2015

6th Deposition and soil solution working ringtest 2013

5th Deposition and soil solution working ringtest 2011

4th Deposition and soil solution working ringtest 2010

3rd Deposition and soil solution working ringtest 2009

2nd Deposition and soil solution working ringtest 2005

1st Deposition and soil solution working ringtest 2002

Additional documents and Excel sheets for deposition and soil solution

Review of possible quality checks and other forms of assistance (Version 1, May 2008)

Excel file for analytical data validation

new excel file for analytical data validation (with DOC)

Excel file for the calculation of alkalinity

Excel file for definition of QA/QC methods within single laboratories

Excel file with instruction and example of control chart use

Internal Quality Control (Nordtest TR569)

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