Laboratory storage

During (1.) sample collection, (2.) sample transport, (3.) sample preparation, and (4.) sample processing (including storage), laboratory findings may be exposed to a multitude of influencing factors, thus allowing serious mistakes to occur, (i)... 

Any terrorist or criminal act directed toward a chemical agent storage, laboratory, or chemical demilitarization facility or any deliberate release of chemical agent. 

We thank M. Benson for the determination and interpretation of NMR spectra, R, Y. Wong for X-ray crystallographic structure analysis and W. H. Haddon for mass spectral determinations. Ing. Agr. Hugo A. Cordo kindly furnished samples and seed of P. integrifolia. Seeds of Petunia species were also furnished by the National Seed Storage Laboratory, Fort Collins Co. 

List of samples with assignment of the tests, storage, laboratories, or LIMS database... 

The Chief, CWS, in his recommendation for the construction of the new arsenal, listed the following facilities four chemical loading plants, a chemical warfare depot, plant storage, laboratories, shops, offices, hospitals, fire and police protection installations, paved roads, and railroads. Construction under this program was getting well under way when the war began. The war period was to see the erection of many more facilities than originally planned. ... 

From the perspective of laboratory practice, the sensitivity of many indoles to acids, oxygen and light prescribes the use of an inert atmosphere for most reactions involving indoles and the avoidance of storage with exposure to light. This sensitivity is greatly attenuated by electron-withdrawing (EW) substituents. 

Spike recoveries for samples are used to detect systematic errors due to the sample matrix or the stability of the sample after its collection. Ideally, samples should be spiked in the field at a concentration between 1 and 10 times the expected concentration of the analyte or 5 to 50 times the method s detection limit, whichever is larger. If the recovery for a field spike is unacceptable, then a sample is spiked in the laboratory and analyzed immediately. If the recovery for the laboratory spike is acceptable, then the poor recovery for the field spike may be due to the sample s deterioration during storage. When the recovery for the laboratory spike also is unacceptable, the most probable cause is a matrix-dependent relationship between the analytical signal and the concentration of the analyte. In this case the samples should be analyzed by the method of standard additions. Typical limits for acceptable spike recoveries for the analysis of waters and wastewaters are shown in Table 15.1. ... 

The main advantage of wholesale climate control Hes in easy access to the objects, and the absence of differences in conditions between various spaces within the institution, eg, storage areas, conservation laboratories, and exhibition galleries. The actual values set for the rh are a matter of compromise metals, stone, and ceramics are best served by humidities as low as possible, but organic materials generally require higher values. An accepted... 

Water loss in operating an HDR faciUty may result from either increased storage within the body of the reservoir or diffusion into the rock body beyond the periphery of the reservoir (38). When a reservoir is created, the joints which are opened immediately fill with water. Micropores or microcracks may fill much more slowly, however. Figure 11 shows water consumption during an extended pressurization experiment at the HDR faciUty operated by the Los Alamos National Laboratory at Fenton Hill, New Mexico. As the microcracks within the reservoir become saturated, the water consumption at a set pressure declines. It does not go to zero because diffusion at the reservoir boundary can never be completely elirninated. Of course, if a reservoir joint should intersect a natural open fault, water losses may be high under any conditions. 

H. W. Newkirk, Hydrogen Storage by Binay and Temay Intermetallicsfor Tnergy Applications—A Keview, Lawrence Livermore Laboratory, University of California, Livermore, 1976. 

The space required for a pilot plant varies tremendously with its size and type. A small unit may require only part of a laboratory (perhaps 5—10 m ), whereas an average pilot plant of 50,000 to 200,000 may require a large room or building (perhaps 500—2000 m ), excluding extended feed or product storage. 

D. D. Wilkey, W. T. Wood, and C. D. Guenther, Eong-Term Plutonium Storage Design Concepts, LA-UR-94-2390, Los Alamos National Laboratory, N.M., 1994. 

K. K. Humphreys and D. R. Brown, Ufe Cycle Cost Comparison of Advanced Storage Batteries and Duel Cells for Utility Stand-Alone and Electric Uehicle Application, Pacific Northwest Laboratory, BatteUe Memorial Institute, 1990. 

Because chloroprene is a flammable, polymerisable Hquid with significant toxicity, it must be handled with care even in the laboratory. In commercial quantities, precaution must be taken against temperature rise from dimerisation and polymerisation and possible accumulation of explosive vapor concentrations. Storage vessels for inhibited monomer require adequate cooling capacity and vessel pressure rehef faciUties, with care that the latter are free of polymer deposits. When transportation of monomer is required, it is loaded cold (< — 10° C) into sealed, insulated vessels with careful monitoring of loading and arrival temperature and duration of transit. 

Cataloging and storage of samples may inundate the laboratory, resulting in storage and retrieval problems. Mislabeled and lost samples are frequent problems. The longer the special samples remain in the laboratory, the greater the likehhood that some will be lost or mislabeled. 

Laboratory The laboratoiy requirements and responsibilities need to be identified and accepted. The laboratoiy supervisor must be aware of the impending test and the hkely demands placed on his/her area of responsibihty. Agreement as to error levels and expected turnaround must be reached. Proper sampling methodology and storage must be established and practiced. 

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