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ICES Data and Information Group
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METOA and METCX new codes Env2021-09-29 #236

Closed Osanna123 closed 2 years ago

Osanna123 commented 2 years ago

German submitter requested new method codes : Code Type: METOA https://vocab.ices.dk/?ref=173 Code: XRFTR Description: Total Reflection X-ray Fluorescence.

Code Type: METCX https://vocab.ices.dk/?ref=202 Code: ODBRCL2 Description: Oxidative digestion with BrCl2 followed by reduction with ZnCl2

Osanna123 commented 2 years ago

Ask the requester for documentation, otherwise, the codes are ok

Osanna123 commented 2 years ago

Additional info from the requester:

METCX ODBRCl2: The method for the Mercury-Pretreatment (Oxidative digestion with BrCl2 followed by reduction with ZnCl2) is based on the method: US-EPA-1631 Revision E: Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry; August 2002

METOA XRFTR: The analytical method "XRFTR" ist documented in the deutsche Norm: DIN 51003:2004-05 Totalreflektions-Röntgenfluoreszenz-Analyse (TXRF) - Allgemeine Grundlagen und Begriffe Englisch title: DIN 51003:2004-05 Total reflection x-ray fluorescence - Principles and definitions

And yes: We need a new code in the REFSK as well.

Osanna123 commented 2 years ago

New METCX code ‘ODBRCL2‘ created for the Oxidative digestion with BrCl2, and suggested using together with the METPS ‘DS-ZNCL‘ (Density separation - ZnCl2). METOA code ‘XRFTR’ is created as well.

Osanna123 commented 2 years ago

New REFSK would get a separate issue when/if requested

Osanna123 commented 2 years ago

Comments by the requester:

  1. 'there is no density separation. The ZnCl2 in this method is used for the reduction of mercury all kind of species to Hg 0, followed by puge and trap of Hg0 amalgamated on a gold trap. The Pretreatment (I think you ment METPT!? I found no „METPS“ in the code list) can be described as FM-PC-0.45.'
  2. again I’d like to request for a new METCX code, replacing the deprecated Code _AU. My suggestion: RDZNCL2 Description: Reduction with ZnCl2 METPT: FM-PC-0.45. METOA: OES-CV Based on method US-EPA-1631 Revision E: Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry; August 2002
Osanna123 commented 2 years ago

Consulted with Martin Larsen, who suggests that reporting of REFSK alone could be sufficient. For more detailed data reporting he suggested METPS GLS for gas-liquid separation. If needed, specific codes for agents as SnCl2 can be made. ZnCl2 is not correct by the reported method.