Floors and flooring

Conductive floors provide effective control of static electricity Available in the form of screeds, self-levelling floors and floor coatings Water resistant... 

The suitability of chip form for sub-flooring and flooring applications was also thought worthy of consideration. In this case resistance to impact is of prime importance, for this reason test specimens, as shown in Figure 5, were prepared and impact tests were carried out. 

The general population may be exposed to di- -butyl phthalate from the air, water, and some foods. Air is probably the main source of di- -butyl phthalate exposure for the general population, but some exposure may come from dairy products, frsh, and seafood. Occupational exposures can occur through skin contact and by inhalation of vapors and dust. It is not known if exposure of children to di- -butyl phthalate differs from that of adults. Di- -butyl phthalate is present in some home furnishings, paints, vinyl flooring and floor wax however, it is not known if children are more likely than adults to be exposed by increased contact with or proximity to these items. Children may also intentionally or unintentionally ingest soil, which may contain low levels of di- -butyl phthalate. 

In addition to the common applications of PVC in flooring and floor tiles, there are also applications of PU (coatings for flooring), polyamide (PA) (woven carpets and rugs), linoleum (manufactured by oxidising linseed oil mixed with pine resin and wood flour in the form of sheets on jute backing), wood/thermoset composites (thermosets like PE, UF, polyisocyanates used as veneers, in plywood, particleboard, fibreboard, laminates), wood fibre/thermoplastic composites (for industrial flooring with PE). 

The tests and the testing devices for flooring and floor-shoe interfaces continue to evolve. That leads to new testing devices, methods and standards. However, not aU countries agree on the use of the same procedures. 

Restrooms should be planned to make use and cleaning easy. (Wall-hung fixtures, placement of fixtures for sequential use, glazed walls, ceramic floors, and floor drains are good choices.)... 

Uses Formulations for automatic dish washing, liq. water-based waxes for ceramic floors and floor covering emulsifier for PE finishing waxes, agrochemicals leveling agent, dispersant for dyes... 

Uses Surfactant degreasers, compounds for dry-cleaning, liq. water-based waxes for ceramic floors and floor covering Trade Names Ultranex NP 40 Nonylphenol ethoxylates. See Nonoxynol Nonyl phenol ethoxy (4) sulfate. See Nonoxynol-4 sulfate Nonyl phenol ethoxy (10) sulfate. See Nonoxynol-10 sulfate Nonyl phenol (mixed isomers). See Nonylphenol Nonylphenol polyethylene glycol ether, 10 EO. See Nonoxynol-10 Nonylphenol polyethylene glycol ether, 15 EO. See Nonoxynol-15 Nonylphenol polyethylene glycol ether, 20 EO. See Nonoxynol-20 Nonylphenol, polyoxyethylene ether. See Nonoxynol 2-(Nonylphenoxy) ethanol. See Nonoxynol-1 2-[2-[2-(Nonylphenoxy)ethoxy]ethoxy]ethanol. See Nonoxynol-3 23-(Nonylphenoxy)-3,6,9,12,15,18,21-heptaoxatricosan-1-ol. See Nonoxynol-8... 

Most rigs are now fitted with a system whereby the drill string is rotated by a drive mechanism in the mast rather than by the rotary table at rig floor level. Thus 90 foot sections can be drilled before connections need to be made, and the drill string can be rotated while pulling out of the hole in 90 foot sections. This improved system, which speeds up the operation and allows better reaming of the hole is known as top drive. 

All drilling activity will be carried out by the drill crew which usually works eight or twelve hour shifts. The driller and assistant driller will man the drilling console on the rig floor from where instrumentation will enable them to monitor and control the drilling parameters, specifically ... 

If a conventional core has been cut, it will be retrieved from the barrel on the rig floor and crated. It is common to do a lithologic description at this stage. To avoid drying out of core samples and the escape of light hydrocarbons some sections will be immediately sealed in a coating of hot wax and foil. 

In preparation for a field wide quick look correlation, all well logs need to be corrected for borehole inclination. This is done routinely with software which uses the measured depth below the derrick floor ( alonghole depth below derrick floor AHBDFor measured depth , MD) and the acquired directional surveys to calculate the true vertical depth subsea (TVSS). This is the vertical distance of a point below a common reference level, for instance chart datum (CD) or mean sea level (MSL). Figure 5.41 shows the relationship between the different depth measurements. 

The blanket when required should be at once wrapped firmly around the person whose clothes are on fire, the person then placed m a prone position on the floor with the ignited portion upwards, and water poured freely both over the blanket and in between the blanket and the person s clothes until the fire is extinguished. 

SigmaPlot is available from SPSS Science, 233 S. Wacker Dr. 11th Floor, Chicago, IL 60606-6307 (www.sigmaplot.com). These companies have been acquisitioned and merged in the way that big-time business moguls so love to do. You may have to follow a trail to find the current name of the program and company you want. 

Burning clothing. Prevent the person from running and fanning the flames. Make the victim he down on the floor, or throw him (her) down if necessary, and wrap the fireproof blanket firmly around the ignited clothes until the fire is extinguished. 

Natural diamonds are found in kimberlite of ancient volcanic "pipes," found in South Africa, Arkansas, and elsewhere. Diamonds are now also being recovered from the ocean floor off the Cape of Good Hope. About 30% of all industrial diamonds used in the U.S. are now made synthetically. 

Zinc is also used extensively to galvanize other metals such as iron to prevent corrosion. Zinc oxide is a unique and very useful material for modern civilization. It is widely used in the manufacture of paints, rubber products, cosmetics, pharmaceuticals, floor coverings, plastics, printing inks, soap, storage batteries, textiles, electrical equipment, and other products. Lithopone, a mixture of zinc sulfide and barium sulfate, is an important pigment. 

Manganese minerals are widely distributed oxides, silicates, and carbonates are the most common. The discovery of large quantities of manganese nodules on the floor of the oceans may become a source of manganese. These nodules contain about 24% manganese together with many other elements in lesser abundance. 

Thallium occurs in crooksite, lorandite, and hutchinsonite. It is also present in pyrites and is recovered from the roasting of this ore in connection with the production of sulfuric acid. It is also obtained from the smelting of lead and zinc ores. Extraction is somewhat complex and depends on the source of the thallium. Manganese nodules, found on the ocean floor, contain thallium. 

My active life and work were unexpectedly affected by two serious illnesses that I fought in 1979 and 1982. We spent the first two years in TA in temporary laboratories in the basement of an old science building, where I also had my office on the ground floor above the... 

One method for measuring the temperature of the sea is to measure this ratio. Of course, if you were to do it now, you would take a thermometer and not a mass spectrometer. But how do you determine the temperature of the sea as it was 10,000 years ago The answer lies with tiny sea creatures called diatoms. These have shells made from calcium carbonate, itself derived from carbon dioxide in sea water. As the diatoms die, they fall to the sea floor and build a sediment of calcium carbonate. If a sample is taken from a layer of sediment 10,000 years old, the carbon dioxide can be released by addition of acid. If this carbon dioxide is put into a suitable mass spectrometer, the ratio of carbon isotopes can be measured accurately. From this value and the graph of solubilities of isotopic forms of carbon dioxide with temperature (Figure 46.5), a temperature can be extrapolated. This is the temperature of the sea during the time the diatoms were alive. To conduct such experiments in a significant manner, it is essential that the isotope abundance ratios be measured very accurately. 

Emulsion polymerization also has the advantages of good heat transfer and low viscosity, which follow from the presence of the aqueous phase. The resulting aqueous dispersion of polymer is called a latex. The polymer can be subsequently separated from the aqueous portion of the latex or the latter can be used directly in eventual appUcations. For example, in coatings applications-such as paints, paper coatings, floor pohshes-soft polymer particles coalesce into a continuous film with the evaporation of water after the latex has been applied to the substrate. 

Portable scales generally have a platform near the floor with the indicator mounted on a column for ease of operation. These scales may be on wheels, and many are battery-powered. Capacities are generally less than 600 kg. Bench scales can be placed on a wheeled table for similar use. 

Floor scales are platform scales which are permanently installed in a pit, flush with the floor, or which sit on the floor. These scales typically range in capacity from 500 kg to 30 t, and in size up to that required to accommodate a fork-lift tmck. 

Industrial appHcations often require that bulk materials or Hquids be weighed in hoppers, silos, tanks, or reactor vessels, referred to collectively as vessels. Because they come in such a wide variety of si2es, shapes, and capacities, scales using these vessels as load receivers are not typically available as standard products. Vessels are usually custom-fabricated to suit a particular appHcation, then mounted on a scale. Some can be mounted on a standard scale such as a bench, portable, or floor scale. More typically, a number of weigh modules are used to support the vessel. This offers the scale designer great flexibiHty but certain precautions are necessary in order to constmct an accurate scale. Some of the more important factors associated with the design of vessel scales are discussed herein. 

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