Container refillable

Cleaning and inspection of reusable containers, tankers etc, before refilling... 

Figure 15.4 Procedure for refilling returnable chemical containers...

SI 1994/199 Environmental Protection (Non-Refillable Refngerant Containers) Regulations... 

In addition to the modes of distribution described above there is also the transportable container, which is now a familiar feature in all kinds of activity. These vary from tiny disposable cartridges of less than 100 g to the larger refillable steel or aluminum alloy cylinders ranging up... 

When drawing off LPG vapor from storage, whether from bulk storage, cylinders or even non-refillable cartridges, the liquid will begin to vaporize but will need latent heat to do so. It will take this heat from itself, and the container, and both will cool. As the LPG liquid cools its pressure must fall. Equilibrium will be obtained when the heat flow from the ambient air equals the demand for latent heat. 

BS 4329 Non-refillable metallic containers up to 1.4 liters capacity for liquefied petroleum gases... 

Temperature control Adequately sized pressure relief Elimination of contaminants, including metallic residues, from process streams and equipment Selection of materials of construction compatible with the chemicaKs) in use, properly cleaned and passivated Elimination of ingress of reactive chemicals, e.g. water, air Date labelling and inventory control in storage Cleaning and inspection of reusable containers, tankers etc. before refilling ... 

Figure 15.4 shows a procedure for the refilling of returnable containers with a chemical of assured quality. (This will require some combination of documentation, sampling and analysis to ensure that the chemical is of the correct type, and in the intended condition.) This is applicable to drums and plastic containers, and bottles, but some modifications are necessary for pressure systems, i.e. gas cylinders, covered by the Pressure Systems Safety Regulations 2000 including ... 

LJ, a 25-year-old-woman with complex partial seizures, presents a prescription to the pharmacy for a triphasic oral contraceptive containing ethinyl estradiol and norgestimate. A review of her medication profile shows that she is taking carbamazepine extended-release 1200 mg/day. Her last refill for this prescription was 2 weeks ago. She reports that she has not had a seizure for a year and that she just became engaged. She is planning to be married in 4 months. 

Alternatively, but not commonly, propulsion of the solutions can be achieved by gravity-based units, which rely on the difference in height between the solution(s) reservoir(s) and the flow lines of the manifold. Also, gas-pressure units, which rely on the action of pressure by an inert gas inside the vessels, which contain the solutions, can be used. Both these uncommon propulsion units yield pulse-free flow but require periodic refilling of solution reservoirs and adjustment of the desired flow rate is very difficult. 

The containers for water softener and clarifiers are situated in the door of the dishwasher. The reed sensor is mounted next to the plastic casing that contains a magnet in a protective foam housing, floating on the liquid. When the level drops to a certain point, the floater activates the reed sensor, which in turn directly operates an indicator light on the front panel. The operator of the dishwasher is then alerted that softeners and/or clarifiers need to be refilled. 

To replace the old-fashioned eye-control method of detecting the level of the liquid, appliance manufacturers now use reed sensors to show when the container for Jet-Dry needs refilling. The reed sensor is mounted underneath, or next to, the liquid container. A floater with an internal permanent magnet is placed in the container and floats on the liquid. If its level falls to a minimum, the floater activates the reed sensor which, in turn, activates a light on the front control panel of the dishwasher, signaling the need to refill the Jet-Dry container. 

A disadvantage of the described reference electrode is its maintenance porous frits may dry out, Cl solution needs refreshment from time to time. Therefore the Hewlett-Packard HP 1049A Electrochemical Detector cell contains a solid state, in situ Ag/AgCl reference electrode as a standard with the refillable electrode described above as an option. 

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