The Apparent Density Tester - Bulk Density Testers also known as powder flowability tester or powder pourability testers are utilized to measure apparent density, bulk factor, and, where applicable, the pourability and flowability of plastic materials such as molding powders. An Apparent Bulk Density Tester serves as an ideal testing instrument for incoming quality inspection of raw materials in the chemical industry and plastic production plants.
According to ASTM D1895, there are three methods applicable to various forms of these materials commonly encountered - from powders and granules to large flakes and cut fibers. The apparatus comprises a measuring cup with a polished interior and a funnel. Qualitest also offers Apparent Bulk Density Testers that comply with ISO 60, ISO 6186 and relevant GB/T standards.
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QT-ADT-14A ADT-1895A：ASTM D1895 method A |
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QT-ADT-15B ADT-1895B：ASTM D1895 method B |
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QT-ADT-16C ADT-1895C：ASTM D1895 method C |
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QT-ADT-11A ADT-1636A：GB/T1636 (method A), GB/T 20022, ISO 60 |
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QT-ADT-12B ADT-1636B：GB/T 1636 (method B) |
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QT-ADT-13AB ADT-1636AB：GB/T1636 (method A and method B), GB/T 20022, ISO 60 |
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QT-ADT-21AB ADT-21060AB (Replaceable interface): GB/T 21060 (method A and method B), ISO6186 |
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ASTM D1895 |
Application |
Test |
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A |
For fine granules and powders that can be poured through a small funnel. |
Test is performed by pouring the material through a funnel into a cylinder of known volume. The apparent density is calculated by dividing the weight of the material in the cylinder by the volume of the cylinder. |
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B |
For coarse, granular materials that either can't be poured or that pour with difficulty through the funnel from Method A. |
Test is performed by pouring the material through a funnel into a cylinder of known volume. The apparent density is calculated by dividing the weight of the material in the cylinder by the volume of the cylinder. |
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C |
For coarse flakes, chips, cut fibers or strands that can't be tested with Methods A or B. |
Test is performed by pouring the material into a graduated cylinder and allowing a 2300g plunger to pack the material for one minute. The apparent density is taken as the mass of the material divided by the settled volume. |
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