EN 16242:2012

Conservation of cultural heritage - Procedures and instruments for measuring humidity in the air and moisture exchanges between air and cultural property

This European Standard gives guidance and specifies procedures and instruments for the measurement of relative humidity (RH) in air, in outdoor or indoor environments. It indicates how RH can be directly measured or how it can be calculated from air temperature, wet-bulb temperature and dew-point temperature. This standard contains recommendations for accurate measurements of ambient conditions and moisture exchanges between air and cultural heritage objects. It is addressed to anyone in charge of environmental diagnosis, conservation or maintenance of buildings, collections or single objects.

Erhaltung des kulturellen Erbes - Verfahren und Geräte zur Messung der Luftfeuchte und des Austausches von Feuchtigkeit zwischen Luft und Kulturgut

Diese Europäische Norm gibt Richtlinien und legt Verfahren und Geräte zur Messung der relativen Luftfeuchte (RH) in Außen- oder Innenraumumgebungen fest. Sie gibt an, wie RH direkt gemessen oder aus der Lufttemperatur, der Feuchtkugeltemperatur und der Taupunkttemperatur berechnet werden kann. Diese Norm enthält Empfehlungen für genaue Messungen der Umgebungsbedingungen und des Feuchtigkeitsaustau-sches zwischen der Luft und Kulturgütern. Sie richtet sich an alle, die für Klimauntersuchungen, Maßnahmen zur Erhaltung oder den laufenden Unterhalt von Gebäuden, Sammlungen oder Einzelobjekten zuständig sind.

Conservation des biens culturels - Modes opératoires et instruments de mesure de l'humidité de l'air et des échanges d'humidité entre l'air et les biens culturels

La présente norme spécifie les modes opératoires et les instruments de mesure de l'humidité relative (HR) de l'air dans les environnements extérieurs ou intérieurs. Elle indique comment mesurer directement l'humidité relative ou comment la calculer à partir de la température de l'air, de la température du thermomètre mouillé et de la température du point de rosée. La présente norme contient des recommandations pour un mesurage précis des conditions ambiantes et des échanges d'humidité entre l'air et les œuvres d'art. Elle s'adresse à toute personne chargée du diagnostic environnemental, de la préservation, de la conservation ou de l'entretien de bâtiments, de collections ou d'objets simples.

Ohranjanje kulturne dediščine - Postopki in instrumenti za merjenje vlažnosti v zraku in izmenjave vlage med zrakom in kulturno dediščino

Ta evropski standard vsebuje navodila za merjenje relativne vlažnosti zraka v zunanjih in notranjih okoljih ter določa postopke in instrumente zanj. Določa postopke za neposredno merjenje relativne vlažnosti ali njen izračun iz temperature zraka, temperature mokrega termometra in temperature rosišča. Ta standard vsebuje priporočila za točne meritve okoljskih razmer in izmenjavo vlage med zrakom in predmeti kulturne dediščine. Namenjen je osebam, odgovornim za okoljsko diagnozo, ohranjanje ali vzdrževanje stavb, zbirk ali posameznih predmetov.

General Information

• Status: Published
• Publication Date: 13-Nov-2012
• ICS: 97.195 - Items of art and handicrafts. Cultural property and heritage
• Technical Committee: CEN/TC 346 - Conservation of cultural property
• Drafting Committee: CEN/TC 346/WG 7 - Specifying and measuring Indoor/outdoor climate
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 05-Nov-2024
• Ref Project: SIST EN 16242:2013 - Conservation of cultural property - Procedures and instruments for measuring humidity in the air and moisture exchanges between air and cultural property

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Erhaltung des kulturellen Erbes - Verfahren und Geräte zur Messung der Luftfeuchte und des Feuchtigkeitsaustausches zwischen Luft und KulturgutConservation des biens culturels - Modes opératoires et instruments de mesure de l'humidité de l'air et des échanges d'humidité entre l'air et les biens culturelsConservation of cultural property - Procedures and instruments for measuring humidity in the air and moisture exchanges between air and cultural property97.195Umetniški in obrtniški izdelkiItems of art and handicrafts13.040.99Drugi standardi v zvezi s kakovostjo zrakaOther standards related to air qualityICS:Ta slovenski standard je istoveten z:EN 16242:2012SIST EN 16242:2013en,fr,de01-maj-2013SIST EN 16242:2013SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16242
November 2012 ICS 97.195 English Version
Conservation of cultural heritage - Procedures and instruments for measuring humidity in the air and moisture exchanges between air and cultural property
Conservation des biens culturels - Modes opératoires et instruments de mesure de l'humidité de l'air et des échanges d'humidité entre l'air et les biens culturels
Erhaltung des kulturellen Erbes - Verfahren und Geräte zur Messung der Luftfeuchte und des Austausches von Feuchtigkeit zwischen Luft und Kulturgut This European Standard was approved by CEN on 8 September 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16242:2012: ESIST EN 16242:2013

Formulae for calculating relative humidity and related variables . 16 A.1 Instruments: Psychrometer, barometer – Parameters: air temperature t (°C), wet bulb air temperature tw (°C), p (hPa) . 16 A.2 Instruments: RH hygrometer, thermometer, barometer - Parameters: t, RH, p . 17 A.3 Instruments: Dew-point hygrometer, thermometer, barometer - Parameters: t,: td, p . 18 Annex B (informative)
Examples for indoor climate measurements . 19 B.1 Recognising the penetration and spread of external air across a room . 19 B.2 Recognising if wall dampness is associated to condensation or evaporation . 20 B.3 External dampness entering a room shown with a mixing ratio plot . 20 Annex C (informative)
Instrumental errors . 22 C.1 Psychrometer:
errors in the various hygrometric variables generated by an error of 0,1 °C in a temperature reading . 22 C.2 Psychrometer: error in determining the relative humidity due to pressure change . 23 C.3 Error due to a thermal inertia of a case, a probe or a shield . 23 C.4 Typical non-linearity and hysteresis of the hair hygrometer . 24 C.4.1 Hair non-linearity and hysteresis . 24 C.4.2 Linear and non-linear scales . 25 Bibliography. 28
Note 1 to entry: This volume density is also noted ρv (v for volume) 3.2 atmospheric (or barometric) pressure (p) pressure is the force per unit area exerted by the air column above the measuring point, expressed in hPa (hectopascal) Note 1 to entry: 1 hPa = 1 mbar (millibar) 3.3 barometer instrument for measuring atmospheric pressure SIST EN 16242:2013
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