Zeitschriften und Ausgaben

Volumen 66 (2022): Heft 1 (January 2022)

Volumen 65 (2021): Heft 4 (December 2021)

Volumen 65 (2021): Heft 3 (November 2021)

Volumen 65 (2021): Heft 2 (September 2021)

Volumen 65 (2021): Heft 1 (May 2021)

Volumen 64 (2020): Heft 4 (December 2020)

Volumen 64 (2020): Heft 3 (October 2020)

Volumen 64 (2020): Heft 2 (June 2020)

Volumen 64 (2020): Heft 1 (March 2020)

Volumen 63 (2019): Heft 4 (December 2019)

Volumen 63 (2019): Heft 3 (November 2019)

Volumen 63 (2019): Heft 2 (June 2019)

Volumen 63 (2019): Heft 1 (March 2019)

Volumen 62 (2018): Heft 4 (December 2018)

Volumen 62 (2018): Heft 3 (July 2018)

Volumen 62 (2018): Heft 2 (May 2018)

Volumen 62 (2018): Heft 1 (February 2018)

Volumen 61 (2017): Heft 5 (December 2017)

Volumen 61 (2017): Heft 4 (October 2017)

Volumen 61 (2017): Heft 3 (July 2017)

Volumen 61 (2017): Heft 2 (April 2017)

Volumen 61 (2017): Heft 1 (March 2017)

Volumen 60 (2016): Heft 5 (December 2016)

Volumen 60 (2016): Heft 4 (December 2016)

Volumen 60 (2016): Heft 3 (September 2016)

Volumen 60 (2016): Heft 2 (June 2016)

Volumen 60 (2016): Heft 1 (March 2016)

Volumen 59 (2015): Heft 4 (December 2015)

Volumen 59 (2015): Heft 3 (November 2015)

Volumen 59 (2015): Heft 2 (July 2015)

Volumen 59 (2015): Heft 1 (April 2015)

Volumen 58 (2014): Heft 4 (December 2014)

Volumen 58 (2014): Heft 3 (November 2014)

Volumen 58 (2014): Heft 2 (June 2014)

Volumen 58 (2014): Heft 1 (March 2014)

Volumen 57 (2013): Heft 4 (December 2013)

Volumen 57 (2013): Heft 3 (September 2013)

Volumen 57 (2013): Heft 2 (June 2013)

Volumen 57 (2013): Heft 1 (March 2013)

Volumen 56 (2012): Heft 4 (December 2012)

Volumen 56 (2012): Heft 3 (October 2012)

Volumen 56 (2012): Heft 2 (July 2012)

Volumen 56 (2012): Heft 1 (March 2012)

Zeitschriftendaten
Format
Zeitschrift
eISSN
1804-1213
Erstveröffentlichung
03 Apr 2012
Erscheinungsweise
4 Hefte pro Jahr
Sprachen
Englisch

Suche

Volumen 65 (2021): Heft 4 (December 2021)

Zeitschriftendaten
Format
Zeitschrift
eISSN
1804-1213
Erstveröffentlichung
03 Apr 2012
Erscheinungsweise
4 Hefte pro Jahr
Sprachen
Englisch

Suche

2 Artikel
Uneingeschränkter Zugang

Protective ability of lead corrosion products in indoor atmosphere with acetic acid vapours

Online veröffentlicht: 30 Dec 2021
Seitenbereich: 1 - 6

Zusammenfassung

Abstract

Lead corrosion products can undergo certain changes over the time in terms of composition. How these changes affect the corrosion of the underlying lead is an important question for protection of historical lead artefacts. In this work, we focus on characterization of changes in composition of lead corrosion products and how the composition affects corrosion of the lead substrate. Prepared model corrosion products on lead coupons were exposed to air at different relative humidity and concertation of acetic acid vapours. Composition of the corrosion products was analysed by XRD and corrosion rate was calculated from gravimetric data. Measurement of polarization resistance was implemented to get more insight into the protective ability of formate corrosion products. With lead formate covering the surface, the corrosion rate of lead coupons was minimal even in humid air with 400 ppb of acetic acid vapours. Acetic acid was however able to alter lead carbonate corrosion products resulting in increased corrosion rate.

Uneingeschränkter Zugang

Indoor corrosivity classification based on lead coupons

Online veröffentlicht: 30 Dec 2021
Seitenbereich: 7 - 12

Zusammenfassung

Abstract

Air pollution in museums, libraries, churches, and other indoor environments of cultural heritage objects was studied since 1980s. For classification of corrosivity for such type of indoor environments the ISO 11844 series was developed in 2006. In 2020 the revision of this ISO 11844 series had been finished, where lead was included as standard specimen with high sensitivity to vapour organic acids. This paper gives results of exposure of lead standard coupons in museums and other similar indoor environments together with measurement of climatic parameters and air pollution to verify the new approach.

2 Artikel
Uneingeschränkter Zugang

Protective ability of lead corrosion products in indoor atmosphere with acetic acid vapours

Online veröffentlicht: 30 Dec 2021
Seitenbereich: 1 - 6

Zusammenfassung

Abstract

Lead corrosion products can undergo certain changes over the time in terms of composition. How these changes affect the corrosion of the underlying lead is an important question for protection of historical lead artefacts. In this work, we focus on characterization of changes in composition of lead corrosion products and how the composition affects corrosion of the lead substrate. Prepared model corrosion products on lead coupons were exposed to air at different relative humidity and concertation of acetic acid vapours. Composition of the corrosion products was analysed by XRD and corrosion rate was calculated from gravimetric data. Measurement of polarization resistance was implemented to get more insight into the protective ability of formate corrosion products. With lead formate covering the surface, the corrosion rate of lead coupons was minimal even in humid air with 400 ppb of acetic acid vapours. Acetic acid was however able to alter lead carbonate corrosion products resulting in increased corrosion rate.

Uneingeschränkter Zugang

Indoor corrosivity classification based on lead coupons

Online veröffentlicht: 30 Dec 2021
Seitenbereich: 7 - 12

Zusammenfassung

Abstract

Air pollution in museums, libraries, churches, and other indoor environments of cultural heritage objects was studied since 1980s. For classification of corrosivity for such type of indoor environments the ISO 11844 series was developed in 2006. In 2020 the revision of this ISO 11844 series had been finished, where lead was included as standard specimen with high sensitivity to vapour organic acids. This paper gives results of exposure of lead standard coupons in museums and other similar indoor environments together with measurement of climatic parameters and air pollution to verify the new approach.

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