| 摘要 |
A precision balance for weighing flat filters has a funnel-shaped weighing dish. The weighing dish has a wall composed of a netting or a thin sheet steel provided with perforations. The weighing dish is mounted in a housing having a lower part and an upper part which is hinged to the lower part and can be swung away from the lower part. A cover vertically displaceably mounted in the upper part can be lowered onto the rim of the weighing dish. The weighing dish is grounded for discharging static charges on the filter.
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