6-02 Sample treatment (new codelist)

[joergklausen]

Branch

• https://github.com/wmo-im/wmds/tree/issue112
• https://github.com/wmo-im/wmds/blob/issue112/tables_en/6-02.csv

Summary and Purpose
[your arguments why the existing situation is not satisfying]

Stakeholder(s)
[include emails or handles as relevant]

Proposal
Include the following table as a new code list (6-02 Sample treatment):

notation	name	description
inapplicable	(inapplicable)	Inapplicable or no sample treatment
drying	Drying	Sample is dried before analysis
evaporation	Evaporation	Sample is evaporated before analysis
freezing	Freezing	Sample is frozen before analysis
heating	Heating	Sample is heated before analysis
homogenization	Homogenization	Sample is homogenized before analysis
melting	Melting	Sample is melted before analysis
milling	Milling	Sample is milled before analysis
mixing	Mixing	Sample is mixed before analysis
sieving	Sieving	Sample is sieved before analysis
other	(other)	Other sample treatment
unknown	(unknown)	unknown
denuding	Chemical denuding	Process to remove certain gas phase species from sample before analysis
conversion	Chemical conversion	Sample is chemically converted before analysis
decomposition	Thermal decomposition	Sample is thermally decomposed before analysis
particleRemoval	Particle removal	Particles are removed from the sample before analysis by a filtering, cyclones, impactors, and electrostatic or diffusional removal

Reason
[your reasoning why the proposal resolves the issue]

---

original comment
6-02_t_go_sampl_treatment_ref.txt

[LuisaIckes]

To make it easier to look at the table coming from OSCAR click here (note that name, definition, notation are not in the usual order).
@wmo-im/tt-wmd : I invite everyone to comment on this new table!

[LuisaIckes]

05.11.2019: finally accepted in teleconference.

[amilan17]

Reopening issue, because this amendment was not included in the previous FT cycle.

[fstuerzl]

This issue depends on #173 as described in the WG ACV wiki page https://github.com/wmo-im/wmds/wiki/wg-acv and needs a review.

[charlesabrock]

"Chemical denuding" is an important pre-treatment and needs to be clearly distinguish from thermal denuding. There is already a "heating" pre-treatment listed; I think that would cover "thermal-decomposing", or "thermal denuding". Other pre-treatments include cyclones and impactors to eliminate coarse particles, so maybe "particle removal" could cover filtering, cyclones, impactors, and electrostatic or diffusional removal (e.g., precipitators and diffusion batteries) with one term.

[gaochen-larc]

Agree with @CharlesBrock. "Heating" would cover thermal-decomposing or thermal denuding. "Chemical denuding" is a better term. What about "chemical conversion" or "conversion", like NO2 converted to NO or NOy thermal-catalytically converted to NO?

[joergklausen]

Branch updated

[jbianchi81]

I think the codelist is ready

[joergklausen]

I recommend to promote this issue to 'validated'

[gaochen-larc]

Found one typo: "from the ssmaple" in description of "particleRemoval".

I see the word "denudation" is different from "denude" or "denuding" . Chemical denuding is often used to strip certain species. Other comments?

[joergklausen]

Found one typo: "from the ssmaple" in description of "particleRemoval".
Typo not present in branch.

I see the word "denudation" is different from "denude" or "denuding" . Chemical denuding is often used to strip certain species. Other comments?
Native-speakers, please come forward and decide ...

[charlesabrock]

Denuding. I don’t think “denudation” is a word that I have ever seen used. cb

On Jun 14, 2021, at 7:16 AM, Jörg Klausen ***@***.***> wrote: Found one typo: "from the ssmaple" in description of "particleRemoval". Typo not present in branch. I see the word "denudation" is different from "denude" or "denuding" . Chemical denuding is often used to strip certain species. Other comments? Native-speakers, please come forward and decide ... — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#112 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ATIXPDOV35U5BNBIHOLU57LTSX6KLANCNFSM4H33TGZA>.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Charles Brock NOAA Chemical Sciences Laboratory 325 Broadway R/CSD2 Boulder, CO 80305 303-497-3795 (voice) 303-497-5126 (fax) ***@***.***

[gaochen-larc]

What about changing the "denuding" description to: "Process to strip certain chemical(s) from the sample before analysis"?

@charlesabrock @jbnowak-larc comments?

[charlesabrock]

“Process to remove selected gas-phase constituents from the sample before analysis”?

On Jun 14, 2021, at 8:41 AM, gaochen-larc ***@***.***> wrote: What about changing the "denuding" description to: "Process to strip certain chemical(s) from the sample before analysis"? @charlesabrock <https://github.com/charlesabrock> @jbnowak-larc <https://github.com/jbnowak-larc> comments? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#112 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ATIXPDIY7AQE5WNJT5AHL3DTSYILNANCNFSM4H33TGZA>.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Charles Brock NOAA Chemical Sciences Laboratory 325 Broadway R/CSD2 Boulder, CO 80305 303-497-3795 (voice) 303-497-5126 (fax) ***@***.***

[gaochen-larc]

“Process to remove selected gas-phase constituents from the sample before analysis”?
On Jun 14, 2021, at 8:41 AM, gaochen-larc @.***> wrote: What about changing the "denuding" description to: "Process to strip certain chemical(s) from the sample before analysis"? @charlesabrock https://github.com/charlesabrock @jbnowak-larc https://github.com/jbnowak-larc comments? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#112 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ATIXPDIY7AQE5WNJT5AHL3DTSYILNANCNFSM4H33TGZA.

Agree with Chuck's change.

[jbnowak-larc]

I agree with @charlesabrock I've never heard anyone use denudation in atmospheric or aerosol sciences. It is used to describe geological processes which is where @gaochen-larc question came from. I think it should be denuding and chemical denuding.

I've always understood chemical denuding as removing certain gas-phase species from the aerosol, which as previously defined is gas + particle phase, while leaving the particle phase undisturbed to be collected by filter or analyzed by another technique. I think @gaochen-larc suggestion "Process to strip certain chemical(s) from the sample before analysis" should be changed to "Process to remove certain gas phase species from sample before analysis".

[jbnowak-larc]

And @charlesabrock already suggested this while I was typing so I agree with him.

[gaochen-larc]

I agree with both @charlesabrock and @jbnowak-larc

[joergklausen]

Denudation changed to denuding, description updated.
Issue considered validated.