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The process by which the dosage and choice of flocculant are selected is called a jar test. The equipment used for jar testing consists of one or more beakers, each equipped with a paddle mixer. After the addition of flocculants, rapid mixing takes place, followed by slow mixing and later the sedimentation process.
A bell jar operating below atmospheric pressure. A vacuum bell jar is placed on a base which is vented to a hose fitting, that can be connected via a hose to a vacuum pump. A vacuum is formed by pumping the air out of the bell jar. The lower edge of a vacuum bell jar forms a flange of heavy glass, ground smooth on the bottom for better contact ...
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The lower compartment of the desiccator contains lumps of silica gel, freshly calcined quicklime, Drierite, molecular sieves, phosphorus pentoxide, (not as effective) anhydrous calcium chloride, or other desiccant to absorb water vapor.
The jar, about 20 by 12.5 inches (510 mm × 320 mm) is made of metal. Its parts are as follows: The body made up of metal (airtight) The lid, also metal can be placed in an airtight fashion; A screw going through a curved metal strip to secure and hold the lid in place; A thermometer to measuring the internal temperature
used to inoculate test samples into culture media for bacterial or fungal cultures, antibiograms, etc. Sterilized by passing through a blue flame. Laminar flow cabinet: used to work aseptic Latex agglutination tiles: for serological analysis Lovibond comparator: a type of a colorimeter: McCartney's bottle or Flat medical bottle