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filterdigel til analyseprøven
filter crucible to contain the test specimen.
最后更新: 2014-11-21
使用频率: 1
质量:
ii) filterdigel til prøven
(ii) filter crucible to contain the specimen.
最后更新: 2017-04-06
使用频率: 1
质量:
efter den anden udvaskning med petroleumsæter filtreres kolbens indhold gennem en filterdigel, idet de sidste fiberrester skylles over i digelen ved hjælp af en lille portion petroleumsæter.
after the second wash with light petroleum, filter the contents of the flask through the crucible, transfer any residual fibres to the crucible with the aid of a small quantity of light petroleum and allow the solvent to evaporate.
restproduktet udvaskes i filterdigelen successivt med 50 ml fortyndet svovlsyre, 50 ml vand og 50 ml fortyndet ammoniak.
wash the residue on the crucible successively with 50 ml of the dilute sulphuric acid reagent, 50 ml water and 50 ml of the dilute ammonia solution.