Bottle code system

Plastic Container Code System, The Plastic Bottle Information Bureau, Washington, DC. 

For many years the Society of the Plastics Industry, Inc. (SPI) in the United States has romoted a voluntary coding system for the identification of the resins used in rigid plastic containers. The system comprising a number 1 to 7 and several letters is generally moulded into the bottom of a container. For example, the number 1 and the letters PETE indicates that the container is made of polyethylene terephthalate while the number 2 and the letters HDPE signify that the container is comprised of high density polyethylene. Thirty-nine U.S. states have mandated that plastic bottles 16 ounces or more and other rigid plastic containers of 8 ounces or more must carry the SPI resin code. 

The majority of U.S. states have requirements for coding of plastic bottles and other containers so that the resin they are made from can be identified. The coding system used was developed by the Society of the Plastics Industry (SPI) and assigns number codes 1 to 6 for PET, HDPE, PVC, LDPE, PP, and PS, respectively, with other plastics coded 7. A number of other countries have adopted this or similar systems. The U.S. Federal Trade Commission has held that conspicuous display of the resin codes constitutes a claim of re-... 

FIG. 21-49 Application of a noncontact inkjet printing system used for coding plastic bottles and corrugated fiberboard cartons. (VIDEOJET shown, couitesy of VIDEOJET Systems International, Inc., 1500 Mittal Blvd., Wood Dale, IL 60191-1073.)... 

FIG. 21 -51 a Inspection system for an integrated-packaging line packing tablets into glass bottles. Machine vision, bar code technology, and sensor technology are linked together by a supervisory system. Courtesy of AGR International, Inc., Butler, PA 16003.)... 

The theorem shows clearly that plasmid loss is detrimental (or fatal) to the production of the chemostat. To compensate for this possibility, in commercial production a plasmid that codes for resistance to an antibiotic is added to the DNA that codes for the item to be produced. Thus, if the plasmid is lost then the wild type is susceptible to (inhibited by) the antibiotic. The antibiotic is introduced into the feed bottle along with the nutrient. The dynamics produced by adding an inhibitor to the chemostat was modeled in Chapter 4. A new direction for research on chemostat models would be to include the inhibitor, as in Chapter 4, and the plasmid model of this section (or one of the more general models) into the same model. This is a mathematically more difficult problem to analyze, since the reduced system will not be planar. Moreover, because the methods of monotone dynamical systems do not apply, other techniques would need to be found in order to obtain global results. The model also assumes extremely simple behavior for the plasmid more could be included in a model. 

This paper presents the combined experimental/numerical investigation of the behaviour of fluid-filled plastic containers subjected to drop impact. Drop Impact experiments were conducted on original and modified bottles. During the test, strain and pressure histories were recorded at various positions. Tests were simulated numerically using the two-system FSI model. Both solid and fluid domains remain fixed during the calculations, i.e. a small-strain analysis was performed for the solid while an Eulerian fi-ame of reference was used for the fluid. This procedure was found to be simple, stable and efficient. Numerical results agreed well with experimental data, demonstrating the capability of the code to cope with this complex fluid-structure interaction problem. 

Randomization codes are used for packaging and labeling study medications. The systems that are used to generate labels for the treatment bottles may be independent of those that produce the randomization. 

This may involve the collation of packages of similar or variable shapes. The most popular form uses either a direct shrink wrap (e.g. multi-packs) or a shallow tray which is usually made from corrugated board or solid board. Thermoformed plastic trays with a formed base (and/or a lid/cover) are also widely employed (e.g. bottles and aerosols). These systems offer restriction to pilferage and due to the see-through nature of the film may avoid the need for external labels. (Internal labels may be necessary if stock is controlled via a bar code.) Although LDPE has the major use, PVC may occasionally be used for its higher clarity. Gauges of 25 to 100 m are usually employed. 

FIGURE 11.12 Final steps that can be used in water purification. Both bottled water and municipal tap water are purified in these ways. The color code shows which pollutants are removed by each method. Pathogenic bacteria can and do pass through all these methods. This is why municipal tap water must be treated with chlorine or some other disinfectant before release into the system. 

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