Method and apparatus for the determination of non-

专利名称：Method and apparatus for the

determination of non-dissolved gas in liquids

发明人：Wladmir Janssen申请号：US06/675002申请日：19841126公开号：US04584866A公开日：19860429

摘要：The method enabling the quick determination of non-dissolved or free gas in aliquid sample. Involves measuring the density of a liquid sample in a closed vessel,subjecting this sample to a reduced pressure and thereby expanding the \"free\" gas in theliquid sample. After this expansion has taken place, but before allowing dissolved gas tocome out of solution, the volume is fixed and a second density measurement is taken. Anapparatus therefor is also disclosed. The apparatus comprises: a chamber wherein a liquidsample is subjected to a reduced pressure and an increased volume, and a means fordensity measurements of the said liquid sample. Also disclosed are means to transferinto the chamber a liquid sample while avoiding the entrapment of gas bubbles.Preferably the chamber has a flexible wall coupled to a suspended weight to enablequick expansion of the chamber while minimizing friction losses and liquid leakage. Oncethe \"free\" gas has expanded, the volume is fixed and a density measurement is taken.

申请人：DOMTAR, INC.

更多信息请下载全文后查看