Introduction to ASTM D695
Compression tests, when conducted in settings that are similar to those in which they are conducted, yield information regarding the compressive qualities of plastics. Modulus of elasticity, yield stress, deformation past the yield point, and compressive strength are examples of compressive qualities. MaTestLab is one of the best testing service providers, with the best network of testing laboratories in the USA to carry out ASTM D695 tests for our clients. A standardized technique for gathering data for R&D, quality assurance, acceptance or rejection by requirements, and other uses is provided by compression tests.
ASTM D695 Test Method
| Specimen Measurement | At several locations along its length, the specimen’s breadth and thickness must be measured to the nearest 0.01 millimeters (0.001 inches), and the results must be noted. |
| Compression test | The test specimen is positioned between the compression tool’s surfaces, with its long axis parallel to the plunger’s center line. After that, the crosshead of the machine is adjusted till it touches the plunger’s top. The test is continued until the specimen breaks, at which point the pace is increased from 5 to 6 mm/min (0.20 to 0.25 in./min). |
ASTM D695 Test Specimens
| Specimen Detail | With one exception, the standard test specimen must be shaped like a right cylinder or prism, with a length twice as long as its major width or diameter. |
| Specimen Size | Five specimens should be taken in case of isotropic specimens and ten in case of anisotropic specimens. The recommended specimen sizes are 25.4 x 12.7 x 12.7 mm. |
ASTM D695 Test Result
In conclusion, ASTM D695 covers the evaluation of mechanical characteristics under compression loading at comparatively low and consistent rates of straining or loading for both unreinforced and reinforced rigid plastics, including high-modulus composites.
ASTM D695 Related testsASTM D695 is related to tests including ASTM D618 for plastic conditioning, ASTM D638 for evaluating the tensile features of plastics, and ASTM D883 for plastics-related terms.
