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1.1 This test method covers measurements of direction ofprincipal strains, ε1 and ε2, and the photoelastic retardation, δ, using a compensator, for the purpose of analyzing strains in transparent or translucent plastic materials. This test method can be used to measure birefringence and to determine the difference of principal strains or normal strains when the principal directions do not change substantially within the light path.
| Author | ASTM |
|---|---|
| Editor | ASTM |
| Document type | Standard |
| Format | File |
| Confirmation date | 2014-12-01 |
| ICS | 83.080.01 : Plastics in general
|
| Number of pages | 11 |
| Replace | ASTM D4093-95(2010) |
| Cross references | GB/T 28609 (2012), NEQ |
| Set | ASTMVOL0802 |
| Year | 2005 |
| Document history | ASTM D4093-95(2010) |
| Country | USA |
| Keyword | ASTM 4093;ASTM D4093;ASTM D4093;10.1520/D4093-95R14 |