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Trial run

Repeat the proeedure using HMO. HMO requires entry of the entire lower semimatrix, ineluding the diagonal and all zero elements. Beeause the matrix element format is II, only one symbol ean be entered for eaeh element. The numbers 0.5 and 1.2 eannot be entered in this format instead enter 1, whieh will be modified later. The initial unmodified input for pyridine is the same as that for benzene, 010010001000010100010 henee, we ean make a trial run on benzene to see if everything is working properly. [Pg.229]

The von Mises stress, L, is then determined for various values of pre-load, E, using the above method. Equally, we eould have used Monte Carlo Simulation to determine an answer for the stress standard deviation. The answer using this approaeh is in faet o- 36 MPa over a number of trial runs. [Pg.210]

Trial runs demonstrated that one mole of benzalaceto-phenone required at least two moles of anhydrous aluminum chloride to complete the reaction at room temperature. When less aluminum chloride was used the yeUow addition product failed to dissolve entirely even after stirring for twenty-four hours, and the yield was decreased. [Pg.52]

There will be situations where the customer requires a prototype program but when no such requirement has been stated it does not mean you should not produce prototypes. Prototypes will not normally be required when the design is similar to a previously proven design or standard or the design is so simple that sufficient evidence can be obtained during the production trial run. [Pg.268]

The evaluation tools and techniques you use should be kept constant. This helps ensure consistency among evaluations at different locations and by different staff. Make a trial run using your set of tools to make sure that... [Pg.50]

II. F. Sheets of Vacuum Oil Company, who learned of Houdi y s work and shared his vision for converting vaporized petroleum to gasoline catalytically, invited him to the United States. After a successful trial run, Houdry moved his laboratory and associates from France to Paulsboro, New Jersey, to form a joint venture, Iloudiy Process Corporation, with Vacuum Oil Company. In that year Vacuum Oil Company merged with Standard Oil of New York to become Socony-Vacuum Company (much later Mobil Oil Corporation). [Pg.632]

The optimum quantities and grades of powder, impact media, water and promoter, and plating conditions such as barrel-rotation speed, are best decided by trial runs. [Pg.438]

In connection with colour-producing reagents, it must be recognised that solutions of such reagents are frequently unstable and normally should not be stored for more than a day or so. Even in the solid state, many of these materials tend to deteriorate slowly and it is advisable that, in general, only small quantities should be stored so that fresh supplies are obtained at frequent intervals. A little-used reagent which may have been in stock for some months should be subjected to a trial run with the appropriate substance before commencing the actual determination. [Pg.677]

Various pyrolysis trials conducted on the General Motors laboratory scale pyrolysis unit are described,as are some trial runs conducted with the SMC Auto Alliance. Several laboratory scale and large-scale pyrolysis trials conducted with thermosets, thermoplastics, paint sludge and auto shredder residue are outlined. [Pg.85]

Initial Situation An experimental granulation technique is to be evaluated a sample of tablets of the hrst trial run is sent to the analytical laboratory for the standard batch analysis prescribed for this kind of product, including content uniformity (homogeneity of the drug substance on a tablet-to-tablet basis, see USP Section (905)" ), tablet dissolution, friability (abrassion resistance), hardness, and weight. The last two tests require little time and were therefore done first. (Note Hardness data is either given in [kg-force] or [N], with 1 kg = 9.81 Newton). [Pg.205]

Repeat the exercise shown in Example 7.4 using Er (A B) = 0.01 and Et (A C) = 0.03, with a 100-cell grid. Use three trial runs and compute the average final concentrations of species B and C along with their standard deviations. Repeat this using 2500 ingredients on a 2500 cell grid. Compare the two results with special attention to the ratios of the standard deviations to the final concentrations. [Pg.120]

Change the reaction probability Pr(AB) to 1.0, and let the simulation run for 1000 iterations. At what time (what iteration) does reaction occur Repeat this simulation nine more times and tabulate the results. Find the average time and its standard deviation for your results, as well as the median time. Next change Pr(AB) to 0.05, increase the number of iterations for each run to 5000, and tabulate the results for 10 trial runs. Repeat the averaging process above. This study reveals the influence of the reaction probability on the course of the reaction. [Pg.129]

A large part of the US diet is made up of crops which originate outside the USA. Currently, a US tolerance achieved through the submission of data obtained from residue trials run exclusively within the USA permits the importation of commodities grown in Latin America or other countries. Within the past 5 years, the ERA has initiated programs to ensure that residue testing to achieve a US tolerance better reflects the climatic and cultural conditions under which the commodity is grown. [Pg.199]

New methods can be created by automatic optimization of parameters during a trial run and all methods can be stored permanently in a non-volatile area of memory which is preserved even when the instrument is switched off. Some instruments provide a means of producing first and second derivatives of the titration curve (p. 243) which can be advantageous where the end-point is indistinct or there is more than one end-point to be detected. Titrators with a substantial amount of RAM incorporate what is in effect a dedicated microcomputer. [Pg.538]

Trial runs of mixed fuels with up to 75% waste have been demonstrated. [Pg.113]

In the original paper, the authors performed the reaction using commercially available bakers yeast from a supermarket or bakery. Initially a trial run using similar quantities of Sigma dried yeast resulted in an extremely vigorous initial fermentation, so the quantity of dry yeast was reduced by factor of 5. The contributors assessed the enantiomeric excess of the alcohol by formation of the (+)-MTPA ester and examination of the 19F NMR spectrum. However, the value obtained for the optical rotation was consistent with that reported in the literature. [Pg.139]

The unit operation demonstrates that membrane life over two years has been demonstrated and that the selected materials of construction are correct. The recovery of sulphate-lean brine is 85-90% during normal operation. In a trial run under extreme conditions, with the unit modified to operate in recycle mode, the concentration of sodium sulphate in the reject stream was increased to 190g l-1 a 90% sulphate rejection rate was achieved during this trial. The sodium chloride concentration decreased on the concentrate side of the membrane and increased in the... [Pg.160]

The pyrolysis temperature and the rate of addition are chosen such that about 50% of the acid chloride is recovered as 2-toluic acid after hydrolysis. Under these conditions only a small amount of benzyl chloride and polymeric material is formed in addition to benzocyclobutenone. The percentage of reactant conversion depends not only on the pyrolysis temperature, but also on the pressure in the reactor and on the rate of reactant addition. It is advisable, therefore, to optimize the pyrolysis temperature in trial runs keeping the other variables constant. [Pg.213]

After making changes, a second trial run using the same blanks and standards. Again, any desired changes are made. [Pg.42]

Additional trial runs until the analyst is confident that he/she can move on without making any further changes. [Pg.42]

First Control Run. A large number (7 to 15) of sets of standards and blanks are run and the results tabulated, as in the trial runs. These data are then plotted (responses vs. concentration for all data points, on one graph) and the means, standard deviations, RSDs, the slope, y-intercept, and correlation coefficient are determined. The smaller the value of the y-intercept, the better (the less chance for a contamination or interference problem). The closer the slope is to 1, the better (the more sensitive). At higher concentrations, the standard deviation should get larger, and the RSDs should get smaller (while approaching some limit). If the RSDs are between 30% and 100%, a close approach to the detection limit is indicated. [Pg.42]

To further prove the efficacy of S-8706 and its applicability on a full-scale, a plant trial was conducted at Thiele Kaolin Company s flotation plant. The average SE value obtained with AP 6493 before the trial run was 70. Replacing AP 6493 with S-8706, the flotation performance during the trial run improved to... [Pg.106]

After the plant trial run with S-8706, the measured SE value for AP 6493 averaged about 68. This trial shows the improved flotation performance obtained with the use of S-8706 (Table 6). [Pg.107]

The magnitude and location of the test unbalance(s) shall be determined from a calibration of the rotor s sensitivity to unbalance. The calibration shall be performed by obtaining the vibration orbits at each bearing, filtered to rotor speed (IX), during two trial runs as follows ... [Pg.157]

The exam bulletin will tell you when and where your exam is being held. Do you know how to get to the testing site Do you know how long it will take you to get there If not, make a trial run, preferably on the same day of the week and at the same time of day. Make note, on the Final Preparations worksheet, of the amount of time it will take you to get to the exam site. Plan on arriving 10-15 minutes early so you can get the lay of the land, use the bathroom, and calm down. Then figure out how early you will have to get up that morning, and make sure you get up that early every day for a week before the exam. [Pg.57]

In many cases, clinical production or trial runs of a new drug are produced in facilities other than the ones used for full-scale production. The facilities and controls used for the manufacture of the batch or batches are audited. For a generic drug product, the biobatch or biobatches are required to be manufactured in production facilities, using production equipment, by production personnel, and the facility is to be in conformance with cGMPs. Accurate documentation is essential so that the production process... [Pg.31]

For both the DuPont and Akron procedures, the standard specifies a trial run to establish the level of abrasion rate and a running in period before the... [Pg.236]

A trial run with alcohol of 98.4 per cent purity gave only a 66 per cent yield. [Pg.12]

The point on the Chromarod where the partial scanning is stopped should be predetermined in a trial run using a Chromarod or unit of Chromarods containing the same sample. The instrument can be set to automatically scan to the same point on each rod. This setting is based on rod length and should be readjusted each time fresh developing solvents are used. [Pg.497]

All cells have to be broken open to remove the cell contents. To accomplish cell lysis the authors use a combination of homogenizing and grinding steps. For recalcitrant tissue a small rock grinder (i.e., ring grinder) is used. The authors advise the experimenter to perform a trial run on their plant material to establish the number and duration of homogenization steps. These should always be the minimum required to break open the cells. Excessive... [Pg.717]

If compounds are detected in lower concentrations than desirable because of detection limits and no leaks have occurred, sample size, gas flow rate, and isolation time can be adjusted to increase the total volatile quantity collected. The method can be optimized efficiently using trial runs in which one parameter is changed at a time. Be aware that volatile ratios will likely be affected by adjustments in these parameters. [Pg.1093]

Using forensic photography as a precursor to any sample acquisition forms the foundation of the protocol, and allows purposive sampling. EDS should be performed to establish which elements to expect before attempting any quantitative elemental analysis such as ICP-OES/MS. Before working with actual artifacts, a set of replicated materials must be used and a successful trial run using the planned methods of analysis whether ICP-OES/MS, GC-MS or any others, must be achieved, so the methods of preparation can be adjusted properly. To facilitate this, appropriate materials must be replicated, which might mean that plants or minerals must be collected, and dyed or painted comparative standards must be created, so the unknown can be compared to the known. For many of the Old World dye plants these standards already exist. However, for North American dye plants comparative collections are in the early phases and subsequent analysis of colorant constituents have not yet been conducted (68,69). [Pg.38]


See other pages where Trial run is mentioned: [Pg.100]    [Pg.726]    [Pg.210]    [Pg.409]    [Pg.485]    [Pg.488]    [Pg.113]    [Pg.250]    [Pg.113]    [Pg.396]    [Pg.139]    [Pg.413]    [Pg.57]    [Pg.58]    [Pg.78]    [Pg.179]    [Pg.135]    [Pg.199]   
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Trial Run the Observation Checklist and Process

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