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ASTM G156 PDF
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Standard Practice for Selecting and Characterizing Weathering Reference Materials
| Published by | Publication Date | Number of Pages |
| ASTM | 02/01/2017 | 4 |
ASTM G156 – Standard Practice forSelecting and Characterizing Weathering Reference Materials
1.1 This standard describes the criteria to be used for selection of a weathering reference material (WRM) and procedures to be used for determining within lab and between lab tolerances of changes in measured properties of weathering reference materials. This standard also describes a procedure for comparing different lots of the same type of a weathering reference material.
Note 1: Examples of laboratory accelerated tests in which a weathering reference material could be used to monitor consistency are exposure tests such as those described in Practices G152, G153, G154, and G155and other standards in which tests conducted according to these standards are referenced. Examples of outdoor exposures where a weathering reference material could be used to monitor consistency are those conducted according to Practices G7, G24, or G90. A reference material can also be used to monitor consistency of exposure or conditioning test that do not involve exposure to light.
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