ASTM E744 PDF
ASTM E744 PDF
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ASTM E744 PDF

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Standard Practice for Evaluating Solar Absorptive Materials for Thermal Applications

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ASTM03/01/20154

ASTM E744 – Standard Practice forEvaluating Solar Absorptive Materials for Thermal Applications

1.1 This practice covers a testing methodology for evaluating absorptive materials used in flat plate or concentrating collectors, with concentrating ratios not to exceed five, for solar thermal applications. This practice is not intended to be used for the evaluation of absorptive surfaces that are (1) used in direct contact with, or suspended in, a heat-transfer liquid, (that is, trickle collectors, direct absorption fluids, etc.); (2) used in evacuated collectors; or (3) used in collectors without cover plate(s).

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