SIST EN 4593:2011
(Main)Aerospace series - Paints and varnishes - Determination of solar absorptance
Aerospace series - Paints and varnishes - Determination of solar absorptance
This standard specifies the method of test for determining the solar absorptance of paints and varnishes.
The test procedure determines the amount of energy reflected by the material in the range of wavelengths at which there is energy from the sun hitting the Earth’s surface, and with the aid of a standard solar spectrum it allows a calculation to determine the solar absorptance which can then be used to determine the efficiency of solar heat reflecting paints.
The procedure is applicable to products intended for use in aerospace applications.
Luft- und Raumfahrt - Anstrichstoffe - Bestimmung der Sonnenlichtabsorption
Diese Europäische Norm legt das Prüfverfahren zur Bestimmung der Sonnenlichtabsorption von Beschichtungen fest.
Mit diesem Prüfverfahren wird die Menge an Energie ermittelt, die vom Werkstoff in dem Wellenlängenbereich der auf die Erdoberfläche auftreffenden Sonnenenergie reflektiert wird, und ermöglicht mit Hilfe eines Standardsolarspektrums die rechnerische Ermittlung der Sonnenlichtabsorption für die Ermittlung der Effizienz von Sonnenwärme reflektierenden Beschichtungen.
Dieses Verfahren ist auf Werkstoffe, die für den Einsatz in Luft- und Raumfahrtanwendungen bestimmt sind, anwendbar.
Série aérospatiale - Peintures et vernis - Détermination de l’absorption solaire
La présente Norme européenne spécifie la méthode d’essai pour déterminer l’absorbance solaire des peintures et des vernis.
La procédure d’essai détermine la quantité d’énergie réfléchie par le matériau dans la gamme des longueurs d’ondes auxquelles l’énergie se crée lorsque le soleil touche la surface de la terre et à l’aide d’un spectre solaire standard, elle permet de faire un calcul pour déterminer l’absorbance solaire qui, ensuite, peut être utilisée pour définir l’efficacité des peintures réfléchissant la chaleur solaire.
La procédure est applicable aux produits destinés à être utilisés dans les applications aérospatiales.
Aeronavtika - Barve in laki - Ugotavljanje absorpcije sončne svetlobe
Ta standard določa preskusno metodo za ugotavljanje absorpcije sončne svetlobe pri barvah in lakih.
Preskusni postopek ugotovi količino energije, ki jo material odbije v različnih valovnih dolžinah, pri katerem energija iz sonca udarja zemeljsko površino in s standardnim sončnim spektrom dopušča izračun za ugotavljanje absorpcije sončne svetlobe, ki je nato lahko uporabljen za ugotavljanje učinkovitosti barv za odbijanje sončne toplote. Postopek velja za proizvode, namenjene uporabi v aeronavtiki.
General Information
Relations
Overview
EN 4593:2011 - "Aerospace series - Paints and varnishes - Determination of solar absorptance" is a CEN standard that specifies a test method to determine the solar absorptance of paints and varnishes intended for aerospace use. The procedure quantifies the amount of solar energy absorbed by a coated surface by measuring spectral reflectance across the solar wavelength range and applying a standard solar spectrum. Results are used to assess the effectiveness of solar heat reflecting paints and coatings for thermal control.
Key topics and requirements
- Scope: Test method for paints and varnishes used in aerospace applications to determine absorbed solar energy.
- Measurement principle: Record spectral reflectance of coated test panels and calculate solar absorptance by weighting reflectance with a standard solar spectral irradiance.
- Wavelength range: Measurements cover the solar energy band (300 nm to 2 300 nm).
- Apparatus: A recording spectrophotometer with an integrating sphere (specular included), 10°/diffuse geometry. Typical instrument performance requirements in the standard include:
- Wavelength accuracy: ±5 nm
- Measuring accuracy: ±2%
- Bandpass: ~4 nm
- Specimen preparation: Samples must be taken and prepared per referenced product and sampling standards; panels are coated, cured, thickness verified, and conditioned before testing.
- Solar spectrum: Calculations use a standard solar spectral irradiance (CIE publ No 85) - commonly through two air masses unless otherwise specified by a product standard.
- Test report: Must include product identification, references to EN 4593 and the product standard, supplementary details (substrate, application, curing, thickness, air masses used), test results, deviations, date, and operator name.
Applications and users
Practical uses:
- Evaluate and compare solar heat reflective coatings for thermal control on aircraft and space-related hardware.
- Support thermal management design by quantifying surface absorptance for energy-balance and heat-load calculations.
- Quality control and acceptance testing of aerospace coatings during production and after formulation changes. Who benefits:
- Aerospace coating manufacturers and formulators
- Materials and thermal-control engineers
- Independent test laboratories and certification bodies
- Procurement, quality assurance, and R&D teams focused on reducing solar heat gain
Related standards
Normative references cited in EN 4593:2011 include:
- EN 23270 (conditioning temperatures and humidities)
- EN ISO 15528 (sampling)
- EN ISO 1513 (sample examination and preparation)
- EN ISO 2808 (film thickness determination)
- CIE Publication No. 85 (solar spectral irradiance)
EN 4593:2011 provides a reproducible, standardized method for assessing solar absorptance of aerospace coatings - essential for thermal performance specification, compliance testing, and coating development.
Frequently Asked Questions
SIST EN 4593:2011 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Paints and varnishes - Determination of solar absorptance". This standard covers: This standard specifies the method of test for determining the solar absorptance of paints and varnishes. The test procedure determines the amount of energy reflected by the material in the range of wavelengths at which there is energy from the sun hitting the Earth’s surface, and with the aid of a standard solar spectrum it allows a calculation to determine the solar absorptance which can then be used to determine the efficiency of solar heat reflecting paints. The procedure is applicable to products intended for use in aerospace applications.
This standard specifies the method of test for determining the solar absorptance of paints and varnishes. The test procedure determines the amount of energy reflected by the material in the range of wavelengths at which there is energy from the sun hitting the Earth’s surface, and with the aid of a standard solar spectrum it allows a calculation to determine the solar absorptance which can then be used to determine the efficiency of solar heat reflecting paints. The procedure is applicable to products intended for use in aerospace applications.
SIST EN 4593:2011 is classified under the following ICS (International Classification for Standards) categories: 49.040 - Coatings and related processes used in aerospace industry. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 4593:2011 has the following relationships with other standards: It is inter standard links to SIST EN 3155-005:2019, SIST EN 3155-005:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN 4593:2011 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.OREHLuft- und Raumfahrt - Anstrichstoffe - Bestimmung der SonnenlichtabsorptionSérie aérospatiale - Peintures et vernis - Détermination de l’absorption solaireAerospace series - Paints and varnishes - Determination of solar absorptance49.040Prevleke in z njimi povezani postopki, ki se uporabljajo v letalski in vesoljski industrijiCoatings and related processes used in aerospace industryICS:Ta slovenski standard je istoveten z:EN 4593:2011SIST EN 4593:2011en01-december-2011SIST EN 4593:2011SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4593
June 2011 ICS 49.040 English Version
Aerospace series - Paints and varnishes -Determination of solar absorptance
Série aérospatiale - Peintures et vernis - Détermination de l'absorption solaire
Luft- und Raumfahrt - Beschichtungsstoffe - Bestimmung der Sonnenlichtabsorption This European Standard was approved by CEN on 19 February 2011.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
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