Disposable items

In the sheeting market, the low density polyethylenes are less important than the high density resins. The high density resins have excellent chemical resistance, stress-crack resistance, durabiUty, and low temperature properties which make them ideal for pond liners, waste treatment faciUties, and landfills. In thicker section, HMW-HDPE sheet makes good containers, trays, tmck-bed liners, disposable items, and concrete molds. The good durabiUty, abrasion resistance, and light weight are critical elements for its selection. 

Dry heat sterilisation is used for equipment that can withstand high temperature and dry heat but cannot withstand wet or steam autoclave. This method is often used for glassware as it dries and sterilises in one operation. The pipets must be wrapped in dustproof aluminum foil or placed in metal pipette cans. The can lids are removed during heating and replaced after sterilisation, that is before any dust can get in the can. Disposable items are not recommended for dry heat sterilisation. This method may only be good for permanent reusable glass pipettes. 

The types of products that contain PET fibers will expand, especially in areas such as nonwoven fabrics used for disposable items, e.g. industrial fabrics for diapers, disposable wipes, filters, etc. These are products that do not require much hand labor, and are relatively well protected from low labor costs in developing countries. Bicomponent fibers based on PET will become more prevalent as the production technology becomes more widespread, in areas where the bico approach can enhance properties or economics. 

Specialty membrane devices used as sensing elements and electrode components are often built permanently into instruments. Diagnostic or medical devices are often single-use disposable items. 

Microfiltration membranes are treated as single-use, disposable items in many clinical, analytical, and laboratory-scale applications where the high value of the product or procedure justifies frequent membrane replacement, and/or the risks associated with reusing contaminated membranes are unacceptable. Membranes used in large-scale industrial MF systems are more often rejuvenated at regular intervals to maximize service life. 

Bar-code label (with also alphanumeric readout) Adhesive label, 8 mm x 20 mm (approximately) Sample preparation form, carbonless, duphcate Chpboard for sample preparation form Laboratory notebook Pen, permanent, archive approved Marker, permanent Pair of scissors Forceps, stainless steel Sealing film Spatula, stainless steel, spoon type Absorbent wipe, standard Laboratory coat Gloves, latex Gloves, durable, chemically resistant Disposable items (continued) Waste bottle, wide mouth, volume 2 liters with chemical resistant lid Waste bottle, wide mouth, volume 4 liters with chemical resistant lid Wash bottle, polyethylene, 250 ml 1 pack 1 pack 1 set 1 1 2 4 1 5 1 pack 12 4 2 boxes 2 coats 2 boxes 1 pack 1 pack Minimum number 1 1 2... 

If decontamination ( hotline ) procedures are required, the containers with the samples will leave the contaminated area only after decontamination is performed. All disposable items for sample collection will be left inside the hot area. Blank samples of soil or water are taken (at presumably not contaminated points) outside the hot area. 

Slides are prepared by blending a fraction of a milligram of sample adhering to a paperclip or other clean disposable item into a drop of mounting medium on a slide and covering with a number 1% cover slip. Dipping the paperclip into the drop of mounting medium on the slide will make the particles adhere when the sample is touched. The particles should be spread in a thin even layer. 

Place all highly contaminated solutions and all disposable items (planchets, used filters, etc.) in... 

There are quite a few techniques that can be used to extend the useful life of an HPLC column these include employing column shock method after several hundred injections, running at lower operating temperatures, not running at pH extremes, and using moderate concentrations of buffers, to name a few. However, the column should be considered as a disposable item. This might be difficult to accept, considering that the typical column costs approximately 500. However, the cost of the column should be viewed in terms of overall analysis costs. Assume that each analysis an analyst performs is on the order of 5 per sample. If the column lasts for 500 injections, this means that the column contributes to 20% of the cost. Many analysts may get 1000-2000 samples analyzed before a column dies, so the cost per sample would be even less 10% of the cost and 5% of the cost, respectively. 

Commodity and engineering polymers. On the basis of end use and economic considerations, polymers can be divided into two major classes commodity plastics and engineering polymers. Commodity plastics are characterized by high volume and low cost. They are used frequently in the form of disposable items such as packaging film, but also find application in durable goods. Commodity plastics comprise principally of four major thermoplastic polymers polystyrene, polyethylene, polypropylene, and poly(vinyl chloride). 

The advantage of optical methods for industrial process control is that they are not subject to electrical interference and have a high bandwidth for information transfer. The theory of fibre-optics and examples of prototype and laboratory-based systems were described earlier in Section 3.4. The use of NIR combined with chemometrics as described in Section 6.10.1 is an example that requires fibre-optics and has the advantage that the components may be made of quartz or even glass and still operate successfully. It is thus possible to treat the optical fibres as disposable items. For example, in autoclave processing of composites, it is possible to leave the fibre embedded in the part and use the optical fibre for subsequent assessment of the condition of the material. 

A question often discussed is whether microcaps are disposable items and should be thrown away after use. 

Jork thinks it is better to use the same capillary for all application operations in an experimental run , provided that it is rinsed at least three times between experiments to prevent errors due to carryover [30]. Here, an experimental nm means the apphca-tion of several samples to one plate for quantitative analysis, as was usual before the use of automatic application equipment. Today, questions of cost and/or time must be considered when deciding whether microcaps should be disposable items. 

AMD is the only method with which reproducible gradient elution on silica gel is possible. In column chromatography, gradient elution can in practice only be used in the reverse phase silica gel would be irreversibly changed, which, with a technique involving frequent re-use of the stationary phase, is not acceptable. This aspect is not relevant in TLC. (Note that the TLC plate is a disposable item ) [159]. 

The properties of the copolymer can be tailored to make it suitable either for molded articles such as shampoo bottles, or thin films for plastic envelopes or carrier bags. However, the polymer is costly, a container made of Biopol being about seven times more expensive than polyethylene. This polymer is now in production and used for packaging, agricultural products, and disposable items of personal hygiene. 

In mass production of many plastic items, the first factor—the cost of the plastic—is often as high as 75% of the total cost of a product. For some products, such as disposable items, this percentage may be even higher. There is, therefore, a compelling incentive for the manufacturer to reduce the mass (weight) of any coditetLaadioomsawteii Ask is thepvoinet... 

Several types of bacterial polyesters that are produced by biosynthesis are poly-3-hydroxybutyrate, poly-4-hydroxybutyrate, poly-3-hydroxyvalerate, poly-3-hydroxyhexanoate, poly-3-hydroxy-heptanoate, etc., and their respective copolymer combinations. Due to their ability to degrade naturally in variety of environments, they will find a lot of applications in disposal items, short-term packaging, and also considered biocompatible in contact with living tissues and can be used for biomedical applications (e.g., drug encapsulation, tissue engineering) (Chauhan, 2012). 

Their physical properties are similar to those of conventional plastics, but they are biodegradable in different environments. Living micro-organisms transform Mater Bi products into water, carbon dioxide or methane. Mater Bi can be used in a wide range of applications such as packaging, disposable items, personal care and hygiene, agriculture and floriculture. 

There are opportunities for polyolefins in biomedical applications as many types are nontoxic, non-thermogenic, non-inflammatory, non-carcinogenic, and non-immunogenic. Polyolefins are used in many applications such as artificial skin, orthopedic implants, heart valves, and disposal items used in medical applications such as syringes. 

Polypropylene Disposable items (e.g. syringes), non-woven textiles, membranes, sutures... 

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