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การทดสอบกำลังบดของเม็ดตัวเร่งปฏิกิริยา
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ASTM D4179Standard Test Method for Single Pellet Crush Strength of Formed Catalyst Shapes
1.1 This test method covers determining the resistance of formed catalysts and catalyst carriers to compressive force and is applicable to regular catalyst shapes such as tablets and spheres. Extrudates, granular materials, and other irregular shapes are specifically excluded. 1.2 This test method determines the average crush strength in the range from 0 to 50 lbf (0 to 220 N). Some materials may have crush strengths above 50 lbf (220N); the test method is applicable to these materials, but the precision of the test is not known. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical