SIST EN 16465:2015
(Main)Plastics - Calibration method of black-standard and white-standard thermometers and black-panel and white-panel thermometers for use in natural and artificial weathering
Plastics - Calibration method of black-standard and white-standard thermometers and black-panel and white-panel thermometers for use in natural and artificial weathering
This standard specifies a traceable calibration method of black-standard thermometers (BST), white-standard thermometers (WST), black-panel thermometers (BPT) and white-panel thermometers (WPT) for use in natural and artificial weathering.
The calibration method takes into account all relevant material and stress factors which appear in weathering applications.
A basic design of types of these thermometers is described in EN ISO 4892-1.
Kunststoffe - Kalibrierverfahren für Schwarz- und Weißstandard-Thermometer und Schwarz- und Weißtafel-Thermometer für die Verwendung bei natürlicher und künstlicher Bewitterung
Die vorliegende Europäische Norm legt ein rückverfolgbares Kalibrierverfahren für Schwarzstandard-Thermometer (BST), Weißstandard-Thermometer (WST), Schwarztafel-Thermometer (BPT) und Weißtafel-Thermometer (WPT) für die Verwendung bei natürlicher und künstlicher Bewitterung fest.
Dieses Kalibrierverfahren berücksichtigt alle relevanten Material- und Beanspruchungsfaktoren, die bei Bewitterungsanwendungen vorkommen.
Eine Grundkonstruktion der Thermometertypen ist in EN ISO 4892 1 beschrieben.
Plastiques - Méthode d’étalonnage des thermomètres à étalon noir et à étalon blanc et des thermomètres à panneau noir et à panneau blanc pour utilisation en vieillissement naturel et artificiel
La présente Norme européenne spécifie une méthode d’étalonnage traçable des thermomètres à étalon noir (BST), des thermomètres à étalon blanc (WST), des thermomètres à panneau noir (BPT) et des thermomètres à panneau blanc (WPT) utilisés en vieillissement naturel et artificiel.
Cette méthode d’étalonnage tient compte de tous les matériaux et facteurs de contrainte pertinents pour les applications liées au vieillissement.
La conception de base des différents types de thermomètres est décrite dans l’EN ISO 4892 1.
Polimerni materiali - Metoda kalibracije črnih in belih standardnih termometrov ter črnih in belih ploščatih termometrov za uporabo v naravnih in umetnih vremenskih razmerah
Ta standard določa sledljivo metodo kalibracije črnih standardnih termometrov (BST) in belih standardnih termometrov (WST) ter črnih ploščatih termometrov (BPT) in belih ploščatih termometrov (WPT) za uporabo v naravnih in umetnih vremenskih razmerah. Metoda kalibracije upošteva vse ustrezne z materialom in obremenitvijo povezane dejavnike pri uporabi v vremenskih razmerah. Zasnova vrst teh termometrov je opisana v standardu EN ISO 4892-1.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.UD]PHUDKKunststoffe - Kalibrierverfahren für Schwarz- und Weißstandard-Thermometer und Schwarz- und Weißtafel-Thermometer für die Verwendung bei natürlicher und künstlicher BewitterungPlastiques - Méthode d’étalonnage des thermomètres à étalon noir et à étalon blanc et des thermomètres à panneau noir et à panneau blanc pour utilisation en vieillissement naturel et artificielPlastics - Calibration method of black-standard and white-standard thermometers and black-panel and white-panel thermometers for use in natural and artificial weathering83.080.01Polimerni materiali na splošnoPlastics in generalICS:Ta slovenski standard je istoveten z:EN 16465:2015SIST EN 16465:2015en,fr,de01-december-2015SIST EN 16465:2015SLOVENSKI
STANDARD
SIST EN 16465:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16465
September
t r s w ICS
z uä r z rä r s English Version
Plastics æ Methods for the calibration of blackæstandard and whiteæstandard thermometers and blackæpanel and whiteæpanel thermometers for use in natural and artificial weathering Plastiques æ Méthodes d 5étalonnage des thermomètres à étalon noir et à étalon blanc et des thermomètres à panneau noir et à panneau blanc pour utilisation en vieillissement naturel et artificiel
Kunststoffe æ Kalibrierverfahren für Schwarzæ und WeißstandardæThermometer und Schwarzæ und Weißtafelæ Thermometer für die Verwendung bei natürlicher und künstlicher Bewitterung This European Standard was approved by CEN on
s w August
t r s wä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s w CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x v x wã t r s w ESIST EN 16465:2015
EN 16465:2015 (E) 2 Contents Page European foreword . 3 Introduction . 4 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 6 4 Abbreviated terms . 7 5 Principle . 7 6 Method A. 7 6.1 General . 7 6.2 Apparatus . 7 6.2.1 Master reference thermometer . 7 6.2.2 Thermally insulated device . 8 6.2.3 Test chamber . 8 6.2.4 Radiation source . 8 6.2.5 Sample holder . 8 6.2.6 Air flow . 9 6.2.7 Ambient air . 9 6.3 Calibration procedure . 9 6.3.1 Principle . 9 6.3.2 Calibration procedure . 10 6.4 Calibration report . 11 7 Method B. 11 7.1 Apparatus . 11 7.1.1 General . 11 7.1.2 Test chamber . 12 7.1.3 Radiation source . 12 7.1.4 Holder . 12 7.1.5 Air flow . 12 7.1.6 Blower . 12 7.1.7 Pyrometer . 12 7.1.8 Chamber air temperature and relative humidity . 13 7.2 Calibration procedure . 13 7.2.1 Principle . 13 7.2.2 Emissivity () . 13 7.2.3 Calibration process . 13 7.3 Calibration report . 14 Annex A (informative)
Characteristics of BST/WST and BPT/WPT . 15 Annex B (informative)
Example of calibration equipment . 16 Bibliography . 17
SIST EN 16465:2015
EN 16465:2015 (E) 3 European foreword This document (EN 16465:2015) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the secretariat of which is held by NBN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2016, and conflicting national standards shall be withdrawn at the latest by March 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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 the United Kingdom. SIST EN 16465:2015
EN 16465:2015 (E) 4 Introduction The relevant weather factors with regard to material testing both outdoors and in devices include natural and simulated solar radiation, heat, humidity and rain as well as pollutants in the air. Different technologies are available to simulate natural solar radiation in a weathering device. One category of exposure devices, which include xenon-arc weathering devices and devices using metal halide gas discharge radiation source, is designed to simulate the entire spectral range of natural solar radiation. In these instruments and like natural solar radiation, the ultraviolet, the visible and the infrared radiation during exposure increases the specimen surface temperature above the ambient air temperature of the surrounding air. As an influencing weathering variable, heat is characterized by the sample surface temperature. Absorbed solar radiation can heat the surface to a temperature up to a
of more than 40 K above ambient air. The possible surface temperature is characterized by a white panel or white standard temperature as its lower limit, and a black panel or standard temperature as its upper limit. It is then assumed that the actual sample temperature lies between the two cited limits. Surface temperatures of specific specimens can be higher or lower (e.g. massive black polymers and transparent polymers). The white panel/standard and black panel/standard temperatures can be easily determined using conventional measuring techniques. In one category of exposure devices, only the short UV range of the natural solar radiation is simulated with fluorescent UV radiation source radiation. In these devices, there is no significant increase in surface temperature of a specimen, because these radiation sources have no significant visible and infrared radiation. An additional category of exposure devices uses a mercury medium pressure radiation source to induce critical photo-degradation reactions that are typical of natural solar exposures. Even this specific radiation source does not provide significant visible and infrared radiation. For this reason, as in the previous category, these exposures do not increase significantly the specimen surface temperature above ambient. NOTE For fluorescent UV and mercury medium pressure radiation sources, the ambient air temperature surrounding the specimen is the main variable influencing the specimen temperature. The relative humidity may have a small effect on the specimen temperature as well. Black/white standard thermometers and black/white panel thermometers are defined in EN ISO 4892-1. They are used in weathering applications to characterize the temperature level (maximum and minimum temperature) under given weathering exposure conditions. The accuracy of these thermometers depends on their design and especially on a well-defined and traceable calibration method. Such methods are the content of this standard. Two methods are defined in this standard. Each method requires calibration of a black panel/standard or white panel/standard to a traceable reference from a national metrological institute (NMI). Historically, the contact calibration method (e.g. calibration in a water bath) has been used for weathering applications: recently a contactless calibration method has been developed. Any requirement to use one method versus the other method is not justified, and both calibration methods are suitable for most weathering applications. However, because of a lack of data comparing the two methods as of the time of publication of this standard, preference or equivalency of results for these two methods is unknown. Both methods may provide different calibration results that are not interchangeable. SIST EN 16465:2015
EN 16465:2015 (E) 5 The European Committee for Standardization (CEN) draws attention to the fact that it is claimed that compliance with Method B of this document may involve the use of European patent EP1500920, concerning the surface temperature calibration process discussed in 7.2.3. CEN takes no position concerning the evidence, validity and scope of these patent rights. The holder of these patent rights has ensured CEN that he is willing to negotiate licenses under reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of the holder of these patent rights is registered with CEN. Information may be obtained from: Atlas Material Testing Technology GmbH Intellectual Property Vogelsbergstr. 22 D-63589 Linsengericht-Altenhaßlau Germany Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights other than those identified above. CEN shall not be held responsible for identifying any or all such patent rights. SIST EN 16465:2015
EN 16465:2015 (E) 6 1 Scope This European Standard specifies traceable calibration methods of black-standard thermometers (BST), white-standard thermometers (WST), black-panel thermometers (BPT) and white-panel thermometers (WPT) for use in natural and artificial weathering: — method A, a contact method, uses a traceable calibrated resistance standard thermometer; — method B, a contactless method, uses a traceable calibrated pyrometer. A basic design of types of the thermometers is described in EN ISO 4892-1. NOTE 1 Historically method A has been used for weathering applications for many years: Method B has been developed recently. Both methods are qualified for weathering applications. They may provide different calibration results that are not interchangeable. NOTE 2 Annex A gives information on the characteristics of BST/WST and BPT/WPT. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 291, Plastics — Standard atmospheres for conditioning and testing (ISO 291) EN ISO 4892-1, Plastics — Methods of exposure to laboratory light sources — Part 1: General guidance (ISO 4892-1) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 master reference thermometer MRT instrument traceable to a national metrological institute (NMI) 3.2 reference calibration thermometer RCT instrument used in an accredited calibration laboratory to calibrate a field calibration thermometer (FCT) 3.3 field calibration thermometer FCT instrument used to realize a standard measurement value with respect to a recognized master reference thermometer with a stated path of traceability to recognized standards and a stated measurement uncertainty Note 1 to entry: Field calibration thermometers are used to calibrate BST/BPT or WST/WPT field thermometers in weathering devices (for daily use). SIST EN 16465:2015
EN 16465:2015 (E) 7 3.4 field thermometer instrument used permanently outdoor or in a laboratory accelerated-weathering device used for the routine measurement of temperature, with a calibration traceable to a reference calibration thermometer 4 Abbreviated terms BPT black-panel thermometer (uninsulated black panel thermometer) BST black-standard thermometer (or insulated black panel thermometer) MRT master reference thermometer NMI national metrological institute RTD resistance thermometer detector WP
...
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kunststoffe - Kalibrierverfahren für Schwarz- und Weißstandard-Thermometer und Schwarz- und Weißtafel-Thermometer für die Verwendung bei natürlicher und künstlicher BewitterungPlastiques - Méthode d’étalonnage des thermomètres à étalon noir et à étalon blanc et des thermomètres à panneau noir et à panneau blanc pour utilisation en vieillissement naturel et artificielPlastics - Calibration method of black-standard and white-standard thermometers and black-panel and white-panel thermometers for use in natural and artificial weathering83.080.01Polimerni materiali na splošnoPlastics in generalICS:Ta slovenski standard je istoveten z:FprEN 16465kSIST FprEN 16465:2015en,fr,de01-julij-2015kSIST FprEN 16465:2015SLOVENSKI
STANDARD
kSIST FprEN 16465:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
FINAL DRAFT
FprEN 16465
May 2015 ICS 83.080.01 English Version
Plastics - Methods for the calibration of black-standard and white-standard thermometers and black-panel and white-panel thermometers for use in natural and artificial weathering
Plastiques - Méthodes d'étalonnage des thermomètres à étalon noir et à étalon blanc et des thermomètres à panneau noir et à panneau blanc pour utilisation en vieillissement naturel et artificiel
Kunststoffe - Kalibrierverfahren für Schwarz- und Weißstandard-Thermometer und Schwarz- und Weißtafel- Thermometer für die Verwendung bei natürlicher und künstlicher Bewitterung This draft European Standard is submitted to CEN members for formal vote. It has been drawn up by the Technical Committee CEN/TC 249.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. FprEN 16465:2015 EkSIST FprEN 16465:2015
FprEN 16465:2015 (E) 2 Contents Page Foreword .3 Introduction .4 1 Scope .6 2 Normative references .6 3 Terms and definitions .6 4 Abbreviated terms .7 5 Principle .7 6 Method A .7 6.1 General .7 6.2 Apparatus .7 6.2.1 Master reference thermometer .7 6.2.2 Thermally insulated device .8 6.2.3 Test chamber .8 6.2.4 Radiation source .8 6.2.5 Sample holder .8 6.2.6 Air flow .9 6.2.7 Ambient air .9 6.3 Calibration procedure .9 6.3.1 Principle .9 6.3.2 Calibration procedure . 10 6.4 Calibration report . 11 7 Method B . 11 7.1 Apparatus . 11 7.1.1 General . 11 7.1.2 Test chamber . 11 7.1.3 Radiation source . 12 7.1.4 Holder . 12 7.1.5 Air flow . 12 7.1.6 Blower . 12 7.1.7 Pyrometer . 12 7.1.8 Chamber air temperature and relative humidity . 12 7.2 Calibration procedure . 13 7.2.1 Principle . 13 7.2.2 Emissivity (0) . 13 7.2.3 Calibration process . 13 7.3 Calibration report . 14 Annex A (informative)
Characteristics of BST/WST and BPT/WPT . 15 Annex B (informative)
Example of calibration equipment. 16 Bibliography . 17 kSIST FprEN 16465:2015
FprEN 16465:2015 (E) 3 Foreword This document (FprEN 16465:2015) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the secretariat of which is held by NBN. This document is currently submitted to the Formal Vote. kSIST FprEN 16465:2015
FprEN 16465:2015 (E) 4 Introduction The relevant weather factors with regard to material testing both outdoors and in devices include natural and simulated solar radiation, heat, humidity and rain as well as pollutants in the air. Different technologies are available to simulate natural solar radiation in a weathering device. One category of exposure devices, which include xenon-arc weathering devices and devices using metal halide gas discharge radiation source, is designed to simulate the entire spectral range of natural solar radiation. In these instruments and like natural solar radiation, the ultraviolet, the visible and the infrared radiation during exposure increases the specimen surface temperature above the ambient air temperature of the surrounding air. As an influencing weathering variable, heat is characterized by the sample surface temperature. Absorbed solar radiation can heat the surface to a temperature up to a ûT of more than 40 K above ambient air. The possible surface temperature is characterized by a white panel or white standard temperature as its lower limit, and a black panel or standard temperature as its upper limit. It is then assumed that the actual sample temperature lies between the two cited limits. Surface temperatures of specific specimens can be higher or lower (e.g. massive black polymers and transparent polymers). The white panel/standard and black panel/standard temperatures can be easily determined using conventional measuring techniques. In one category of exposure devices, only the short UV range of the natural solar radiation is simulated with fluorescent UV radiation source radiation. In these devices, there is no significant increase in surface temperature of a specimen, because these radiation sources have no significant visible and infrared radiation. An additional category of exposure devices uses a mercury medium pressure radiation source to induce critical photo-degradation reactions that are typical of natural solar exposures. Even this specific radiation source does not provide significant visible and infrared radiation. For this reason, as in the previous category, these exposures do not increase significantly the specimen surface temperature above ambient. NOTE For fluorescent UV and mercury medium pressure radiation sources, the ambient air temperature surrounding the specimen is the main variable influencing the specimen temperature. The relative humidity may have a small effect on the specimen temperature as well. Black/white standard thermometers and black/white panel thermometers are defined in EN ISO 4892-1. They are used in weathering applications to characterize the temperature level (maximum and minimum temperature) under given weathering exposure conditions. The accuracy of these thermometers depends on their design and especially on a well-defined and traceable calibration method. Such methods are the content of this standard. Two methods are defined in this standard. Each method requires calibration of a black panel/standard or white panel/standard to a traceable reference from a national metrological institute (NMI). Historically, the contact calibration method (e.g. calibration in a water bath) has been used for weathering applications: recently a contactless calibration method has been developed. Any requirement to use one method versus the other method is not justified, and both calibration methods are suitable for most weathering applications. However, because of a lack of data comparing the two methods as of the time of publication of this standard, preference or equivalency of results for these two methods is unknown. Both methods may provide different calibration results that are not interchangeable. The European Committee for Standardization (CEN) draws attention to the fact that it is claimed that compliance with Method B of this document may involve the use of European patent EP1500920, concerning the surface temperature calibration process discussed in 7.2.3. kSIST FprEN 16465:2015
FprEN 16465:2015 (E) 5 CEN takes no position concerning the evidence, validity and scope of these patent rights. The holder of these patent rights has ensured CEN that he is willing to negotiate licenses under reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of the holder of these patent rights is registered with CEN. Information may be obtained from: Atlas Material Testing Technology GmbH Intellectual Property Vogelsbergstr. 22 D-63589 Linsengericht-Altenhaßlau Germany Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights other than those identified above. CEN shall not be held responsible for identifying any or all such patent rights. kSIST FprEN 16465:2015
FprEN 16465:2015 (E) 6 1 Scope This European Standard specifies traceable calibration methods of black-standard thermometers (BST), white-standard thermometers (WST), black-panel thermometers (BPT) and white-panel thermometers (WPT) for use in natural and artificial weathering: — method A, a contact method, uses a traceable calibrated resistance standard thermometer; — method B, a contactless method, uses a traceable calibrated pyrometer. A basic design of types of the thermometers is described in EN ISO 4892-1. NOTE 1 Historically method A has been used for weathering applications for many years: Method B has been developed recently. Both methods are qualified for weathering applications. They may provide different calibration results that are not interchangeable. NOTE 2 Annex A gives information on the characteristics of BST/WST and BPT/WPT. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 291, Plastics - Standard atmospheres for conditioning and testing (ISO 291) EN ISO 4892-1, Plastics - Methods of exposure to laboratory light sources - Part 1: General guidance (ISO 4892-1) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 master reference thermometer MRT instrument traceable to a national metrological institute (NMI) 3.2 reference calibration thermometer RCT instrument used in an accredited calibration laboratory to calibrate a field calibration thermometer (FCT) 3.3 field calibration thermometer FCT instrument used to realize a standard measurement value with respect to a recognized master reference thermometer with a stated path of traceability to recognized standards and a stated measurement uncertainty Note 1 to entry: Field calibration thermometers are used to calibrate BST/BPT or WST/WPT field thermometers in weathering devices (for daily use). kSIST FprEN 16465:2015
FprEN 16465:2015 (E) 7 3.4 field thermometer instrument used permanently outdoor or in a laboratory accelerated-weathering device used for the routine measurement of temperature, with a calibration traceable to a reference calibration thermometer 4 Abbreviated terms BPT black-panel thermometer (uninsulated black panel thermometer) BST black-standard thermometer (or insulated black panel thermometer) MRT master reference thermometer NMI national metrological institute RTD resistance thermometer detector WPT white-panel thermometer (uninsulated white panel thermometer) WST white-standard thermometer (or insulated white panel thermometer) 5 Principle To characterize surface temperature of specimens which are exposed to weathering conditions, either BST and WST or BPT and WPT are used, all of them combining a coated panel, an electrical sensor element, and a monitoring system. The thermometer to be calibra
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