ASTM-E861 Standard Practice for Evaluating Thermal Insulation Materials for Use in Solar Collectors

ASTM-E861 - 2013 R21 EDITION - CURRENT
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Standard Practice for Evaluating Thermal Insulation Materials for Use in Solar Collectors
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Scope

1.1 This practice sets forth a testing methodology for evaluating the properties of thermal insulation materials to be used in solar collectors with concentration ratios of less than 10. Tests are given herein to evaluate the pH, surface burning characteristics, moisture adsorption, water absorption, thermal resistance, linear shrinkage (or expansion), hot surface performance, and accelerated aging. This practice provides a test for surface burning characteristics but does not provide a methodology for determining combustibility performance of thermal insulation materials.

1.2 The tests shall apply to blanket, rigid board, loose-fill, and foam thermal insulation materials used in solar collectors. Other thermal insulation materials shall be tested in accordance with the provisions set forth herein and should not be excluded from consideration.

1.3 The assumption is made that elevated temperature, moisture, and applied stresses are the primary factors contributing to the degradation of thermal insulation materials used in solar collectors.

1.4 Solar radiation is not considered a contributing factor since insulating materials are not normally exposed to it.

1.5 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.

Keywords

chemical compatibility; degradation; durability; insulation; solar collectors; stagnation; thermal insulation; ICS Number Code 27.160 (Solar energy engineering)

To find similar documents by ASTM Volume:

12.02 (Nuclear (II), Solar, and Geothermal Energy)

To find similar documents by classification:

27.160 (Solar energy engineering Including photovoltaic energy systems)

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Document Number

ASTM-E0861-13R21

Revision Level

2013 R21 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

Jan. 15, 2021

Document Type

Practice

Page Count

4 pages

Committee Number

E44.05