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Complete Title: ASTM D1987 – ۹۵ – Standard Test Method for Biological Clogging of Geotextile or Soil/Geotextile Filters Significance and Use: – This test method (ASTM D1987) is performance oriented for determining if, and to what degree, different liquids create biological activity on geotextile filters thereby reducing their flow capability. The use of the method […]

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