Cylinders connections

No chlorine gas 2a. Chlorine cylinders 2a. Visual inspection. 2a. Connect cylinders or replace empty... 

Effective mixing of solids is also accomplished by rotating the sample for some time in a ball mill or a twin-shell V-blender. The latter consists of two connected cylinders that form a V-shaped container for the sample. As the blender is rotated, the sample is split and recombined with each rotation, leading to highly efficient mixing. 

Graco 8900 Proportioner The Graco 8900 Proportioner uses fluid inlet pressure to continuously reciprocate two connected cylinders (Fig. 83). This fluid pressure is provided by two pumps which supply consistent pressure to the proportioner cylinders. 

While no CGA standard exists for high-pressure station (manifold) connections, cylinder valves with X "inch, /2-inch, or 4-inch NGT inlet connections are commonly used with an appropriate CGA outlet connection for the application. 

Another method is to employ a helium densitometer (Fig. 2.10). This method is based on the principle of Fk constant at constant temperature. A known weight, W of porous sample is put into then evacuated from a closed vessel of volume Vt. Next nonadsorbable gases such as helium are introduced to pressure Pi, the valve closed and the volume of the vessel changed by moving the piston in the connected cylinder. From the displacement of the piston, the change in volume, A V, and change in pressure, AP, are obtained. Then the volume of the sample, K, in which helium cannot penetrate is obtained as... 

Cylinder valve outlet and inlet connections, cylinder ancillary equipment connections, transfer connections, and regulator connections have been standardized by the industry for the handling of specific types of compressed and liquefied gases and to prevent the misapplication of these potentially hazardous materials. Users of compressed gases are cautioned not to tamper with or replace connections supplied by an authorized gas supplier. 

For more detailed information about cylinder valve outlet and inlet connections, cylinder ancillary equipment connections, bulk transfer connections, and regulators, refer to Chapter 8. 

XI. 1.2.3 Similarly, add isopentane, n-butane, isobutane, propane, ethane, and carbon dioxide, in that order, as desired, in the reference standard. Weigh Cylinder A after each addition to obtain the weight of the component added. Connect Cylinder A to the evacuated 20-L cylinder with as... 

XI. 1.2.4 Evacuate and weigh 100-mL Cylinder B. Then fiU Cylinder B with helium and hydrogen respectively to the pressures required to provide the desired concentrations of these components in the final blend. (Helium and hydrogen are prepaid and measured separately from the other components to prevent their pressures, while in the 100-mL cylinder, from causii condensation of the h er hydrocarbons.) Weigh Cylinder B after each addition to obtain the weight of the component added. Connect Cylinder B to the 20-L cylinder with as short a clean, small-diameter connector as possible. Open the valve on the 20-L cylinder, then open the valve on Cylinder B, which will result in the transfer of neatly all of the contents of Cylinder B into the 20-L cylinder. Gose the cylinder valves, disconnect, and weigh... 

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