Pound conversion factor

The total releases to air from the facility must be entered m Part III, Section 5 of Form R in pounds per year. The stack test results provide the concentration of metallic lead in each exhaust stream in grains per cubic toot and the exhaust rate in cubic feet per minute. Using the appropriate conversion factors, knowing the scrubber efficiency (from the manufacturer s data), and assuming yourfacility operates 24 hours per day, 300 days per year, you can calculate the total lead releases from the stack test data. Because point (stack) releases of lead are 2,400 pounds per year,-which is greater than the 999 pounds per year ranges in column A. 1, you must enter the actual calculated amount in column A.2 of Section 5.2. 

This conversion factor is exact the inch is defined to be exactly 2.54 cm. The other factors listed in this column are approximate, quoted to four significant figures. Additional digits are available if needed for vary accurate calculations. For example, the pound is defined to be 453.59237 g. 

Specific volume is a conversion of specific gravity into cubic inches per pound. Since the volume of material in a product is the first bit of information established after its shape is formulated, the specific volume is a convenient conversion factor for weight ... 

Note Because there is a constant conversion factor between grams and pounds, we can work totally in pounds. Since the formula weights are CuFeS2 (183.5 g/mol), Cu2S (159.2 g/mol) and Cu (63.55 g/mol), we have... 

Besselink, H., Jonas, A., Pijnappels, M., Swinkels, A., Brouwer, B. (2003). Comparison of the DR CALUX and HRGC-MS-derived TEQs Introduction of conversion factors. Organohalogen Corn-pounds 60 203-206. 

The conversion factor used to change pounds per square inch to dynes per square centimeter was taken as 68948 (3). 

A conversion factor simply uses your knowledge of the relationships between units to convert from one unit to another. For example, if you know that there are 2.54 centimeters in every inch (or 2.2 pounds in every kilogram or 101.3 kilopascals in every atmosphere), then converting between those units becomes simple algebra. Peruse Table 2-3 for some useful conversion factors. And remember If you know the relationship between any two units, you can build your own conversion factor to move between those units. 

If you re curious to know how many pounds this is, multiply by the conversion factor 2.20 pounds/i kilogram. 

The second is conversion of values of pressure measured in atmospheres to pounds per square inch absolute. The conversion factor is a constant, 14.696 psia/atm. 

In the British system, the unit of work is called the foot-pound (ft-lb), because the pound is a unit of force and the foot is a unit of displacement. These units of work are all related by simple conversion factors. 

Other systems of units, such as the English engineering system, use units thai are related to SI units by fixed conversion factors. Thus, the foot (ft) is defined as 0.3048 m, the pound mass (lbm) as 0.45359237 kg, and the pound mole (lb mof as 453.59237 mol. 

The units of each term are ft-lbp/lbM, where pound force is Ibp, and pound mass is Ibw- The conversion factor, gc, equals 32.2 IbM-ft/s lbp. In the first term, the kinetic energy term, the factor a corrects for the velocity profile across the... 

The base units of the American engineering system are the foot (ft) for length, the pound-mass (Ibm) for mass, and the second (s) for time. This system has two principal difficulties. The first is the occurrence of conversion factors (such as 1 ft/12 in), which, unlike those in the metric systems, ate not multiples of 10 the second, which has to do with the unit of force, is discussed in the next section. 

Any measuring unit, in whatever system, will be too big for some applications and too large for others. People would not appreciate having their waist measurements in miles or their weights in tons. That s why we have inches and pounds. The problem, though, is that in the American system the conversion factors between various-sized units—12 inches per foot, 3 feet per yard, 1,760 yards per... 

Pressure difference may be in pounds per square inch, atmospheres, bars, pascals, centimeters of mercury, inches of water, or whatever chosen. (It may be noted that pressure is ordinarily expressed in mass-distance units, as mass per unit area, rather than as stress in force-distance units, as force per unit area, with the pascal being an example of the latter.) For convenience, a few conversion factors are supplied in Table 19.8. 

The metric system uses grams to measure weight and liters to measure volume, as shown in Table 7.1. Prefixes are used to indicate the value (Table 7.2). The apothecaries system uses ounces and pounds for weight and teaspoon, and tablespoon to measure volume. Table 7.3 contains conversion factors for the apothecaries system and metric system. 

The exact conversion factor is 4.535 923 E-01. All units that contain the pound refer to the avoirdupois pound unless otherwise specified. 

Because we are not told the type of percentage that 8.0% blood represents, we assume that it is a mass percentage. Both pounds and kilograms are mentioned in the problem, so we could use either one of the following conversion factors. 

Pound is a mass unit, and we want volume. Density provides a conversion factor that converts between mass and volume. You can find the density of ethanol on a table such as Table 8.2. It is 0.7893 g/mL at 20 °C. 

Percentages also provide ratios that can be used as unit analysis conversion factors. Because percentages are assumed to be mass percentages unless otherwise indicated, they tell us the number of mass units of the part for each 100 mass units of the whole. The ratio can be constructed using any unit of mass as long as the same unit is written in both the numerator and denominator. This leads to the third conversion factor in our setup. The fourth conversion factor changes pounds to grams. 

We can measure the total mass of the nails in the bin and then use the conversion factor above to determine their number. For example, if the nails in the bin are found to weigh 218 pounds, the number of nails in the bin is ... 

It is often convenient to describe numbers of objects in terms of a collective unit such as a dozen (12) or a gross (144). The number 2.62 X 10 is large and inconvenient to use. We might therefore prefer to describe the number of nails in another way. For example, we could describe them in terms of dozens of nails, but 218 pounds of our nails is 2.18 X 10 dozen nails, which is still an awkward number. We could use gross instead of dozen. A gross of objects is 144 objects. The following calculation shows how to create a conversion factor that converts between mass of nails and gross of nails ... 

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