硬度 Shore D試依據ASTM哪一個檢驗方法?

Question

硬度 Shore D試依據ASTM哪一個檢驗方法?
並請提供相關說明及測試方法...謝謝...

Answer 1

Shore D Hardness. 依據ASTM D 2240檢驗
http://www.matweb.com/reference/shore-hardness.asp

The hardness of plastics is most commonly measured by the Shore (Durometer) test or Rockwell hardness test. Both methods measure the resistance of plastics toward indentation and provide an empirical hardness value that doesn't necessarily correlate well to other properties or fundamental characteristics. Shore Hardness, using either the Shore A or Shore D scale, is the preferred method for rubbers/elastomers and is also commonly used for 'softer' plastics such as polyolefins, fluoropolymers, and vinyls. The Shore A scale is used for 'softer' rubbers while the Shore D scale is used for 'harder' ones. Many other Shore hardness scales, such as Shore O and Shore H hardness, exist but are only rarely encountered by most plastics engineers.

The Shore hardness is measured with an apparatus known as a Durometer and consequently is also known as 'Durometer hardness'. The hardness value is determined by the penetration of the Durometer indenter foot into the sample. Because of the resilience of rubbers and plastics, the indentation reading my change over time - so the indentation time is sometimes reported along with the hardness number.

The ASTM test method designation is ASTM D2240 00 and is generally used in North America. Related methods include ISO 7619 and ISO 868; DIN 53505; and JIS K 6301, which was discontinued and superceeded by JIS K 6253

2006-06-01 22:15:31 補充：
ASTM D2240-00 橡膠性質標準測試方法—洛式硬度計 1 。範圍1.1 這個測試方法描述名為durometer的八種橡膠硬度測量設備，八種類型為A, B, C, D, O, DO、OO和M 。測試方法為測定物質表面的凹面的硬度，包括熱塑性彈性橡膠、加硫橡膠 (thermoset)、彈性橡膠材料、多孔性材料, 和一些其他塑料。1.2 這個測試方法與其它凹面硬度測試方法不同，特別是ASTM D 1415。1.3 這個測試方法對上漆織品不適用。1.4 這個測試方法以SI 單位為準。括號內數值僅供參考。

2006-06-01 22:26:15 補充：
上面「ASTM D2240-00 橡膠性質標準測試方法—洛式硬度計」 應該更正為 「ASTM D2240-00 橡膠性質標準測試方法—Durometer硬度」