ASTM E781-86(2003)
Standard Practice for Evaluating Absorptive Solar Receiver Materials When Exposed to Conditions Simulating Stagnation in Solar Collectors With Cover Plates

Standard No.

ASTM E781-86(2003)

Release Date

1986

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM E781-86(2009)

Latest

ASTM E781-86(2023)

Scope

1.1 This practice covers a test procedure for evaluating absorptive solar receiver materials and coatings when exposed to sunlight under cover plate(s) for long durations. This practice is intended to evaluate the exposure resistance of absorber materials and coatings used in flat-plate collectors where maximum nonoperational stagnation temperatures will be approximately 200176;C (392176;F).

1.2 This practice shall not apply to receiver materials used in solar collectors without covers (unglazed) or in evacuated collectors, that is, those that use a vacuum to suppress convective and conductive thermal losses.

1.3 The values stated in SI units are to be regarded as the standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM E781-86(2003) Referenced Document

• ASTM B537 Standard Practice for Rating of Electroplated Panels Subjected to Atmospheric Exposure*， 2019-10-01 Update
• ASTM D1898 *， 1989-01-01 Update
• ASTM E408 Standard Test Methods for Total Normal Emittance of Surfaces Using Inspection-Meter Techniques
• ASTM E434 Standard Test Method for Calorimetric Determination of Hemispherical Emittance and the Ratio of Solar Absorptance to Hemispherical Emittance Using Solar Simulation
• ASTM E772 Standard Terminology Relating to Solar Energy Conversion*， 1987-04-19 Update
• ASTM E903 Standard Test Method for Solar Absorptance, Reflectance, and Transmittance of Materials Using Integrating Spheres *， 1996-04-19 Update

ASTM E781-86(2003) history

• 2023 ASTM E781-86(2023) Standard Practice for Evaluating Absorptive Solar Receiver Materials When Exposed to Conditions Simulating Stagnation in Solar Collectors with Cover Plates
• 1986 ASTM E781-86(2015) Standard Practice for Evaluating Absorptive Solar Receiver Materials When Exposed to Conditions Simulating Stagnation in Solar Collectors With Cover Plates
• 1986 ASTM E781-86(2009) Standard Practice for Evaluating Absorptive Solar Receiver Materials When Exposed to Conditions Simulating Stagnation in Solar Collectors With Cover Plates
• 1986 ASTM E781-86(2003) Standard Practice for Evaluating Absorptive Solar Receiver Materials When Exposed to Conditions Simulating Stagnation in Solar Collectors With Cover Plates
• 1996 ASTM E781-86(1996) Standard Practice for Evaluating Absorptive Solar Receiver Materials When Exposed to Conditions Simulating Stagnation in Solar Collectors With Cover Plates