| 摘要 |
PROBLEM TO BE SOLVED: To provide a tester and a test method capable of measuring simply and accurately with excellent repeatability regardless of an examiner, concerning a test of a penetration of asphalt or a consistency of wax. SOLUTION: This penetration or consistency tester specified in JIS having a glass container 6 for storing a test container 7, a test stand 3 movable up and down for placing the glass container 6, and a needle drop/penetration distance measuring part 5 is equipped with a light source 8 for illuminating a sample surface, a reflecting plate 9 for reflecting light from the light source 8, and an enlargement device 10 (a CCD camera and an image monitor) for enlarging a contact part between the sample surface in the test container 7 and the tip of a needle 51. In the tester, the contact state between the tip of the needle 51 and the tip of an image of the needle reflected on the sample surface is reflected clearly in the enlarged state on an image monitor. COPYRIGHT: (C)2008,JPO&INPIT
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