Laboratory papers

Qualitative filter papers are available for qualitative analyses and general use quantitative papers are for use in analytical work that is carried out to quantify the composition of materials, where the purity of composition of the filter paper can be crucial. Qualitative cellulose papers are available with or without binders with particle retention capabilities from 3 pm to about 30 pm. Quantitative papers are generally binder free and offer a similar range of particle retentions. 

Glass microfibre papers are made from 100% borosilicate glass or pure quartz. Their mechanical strength stems in part from very high surface areas of the sub-micron fibres, and from entanglement of very long fibres. They are particularly suitable for quantitative work, and may be used at temperatures as high as 500°C or at low temperatures without embrittlement. 

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Naval Ordnance Laboratory —paper presented at meeting American Ordnance Association, Philadelphia, Pa (Oct 1956) 6) Anon, Firing Re-... 

It had been suggested that accelerated aging in ovens supplied with ambient air is unnatural in that the moisture content of paper under such conditions is much lower than in papers under normal conditions and that the validity of heat aging would be increased by controlling the relative humidity of the aging environment at some level comparable with natural conditions. At the Barrow Laboratory, papers have been aged at a variety of humidities and temperatures in three different kinds... 

Calvin, M. (1978). Fermentation and Hydrocarbons. Presented at 11 Latin-American Botanical Congress, Brasilia, Brazil, January 22-27, Lawrence Berkeley Laboratory Paper 7270. University of California, Berkeley, CA. 

Barrie SC, Buntine MA, Jamie IM, Kable SH (2001a) APCELL Developing better ways of teaching in the laboratory. Paper presented at the Proceedings of Research and Development into University Science Teaching and Learning Workshop, Sydney, NSW... 

In the ELN, the electronic scientific document serves the role of a conventional laboratory paper notebook It is a container for laboratory data bound by regulatory guidelines. As an electronic regulatory vehicle, the electronic scientific document must meet GxP and 21 CFR Part 11 requirements mentioned earlier as well as the requirements governing paper laboratory notebooks. As a result, it must do the following ... 

Swedish Forest Products Research Laboratory, Paper Technology Department, Stockholm, Sweden... 

Neretnieks 1. Interpretation of some in-situ tracer test experiments in fractured crystalline rock at Aspo hard rock laboratory. Paper presented at this congress, 2003... 

Soure From Touzinsky, G.F. Laboratory paper machine runs with Kenaf thermochemical pulp, TAPPI, 1980, 63(3), 109 Touzinsky, G.F. Kenaf, In Pulp and Paper Manufacturing, Vol. 3., Secondary fibers and non-wood pulping. Chapter 8, TAPPI Press, Atlanta, GA 1987,106. 

S.K. Mittal and S. Maheshwari, Proceedings Pulping Corrfererwe TAPI, San Diego, 105 (1994). G.F. Touzinsky, Laboratory paper machine runs with kenaf thennomechanical pulp, TAPPI, 63(3), 109 (1980>... 

Kirkwood, C. 1998. System Dynamics Methods A Quick Introduction, ed. C.o. Business. Arizona State University. Kotov, V 1997. Systems of Systems as Communicating Structures, Hewlett Packard Computer Systems Laboratory, Paper HPL-97-124, 1-15... 

Stress Corrosion Performance of Diffusion Bonded Base Nickel Alloys Knolls Atomic Power Laboratory, Paper 24, 1989 Report No. DE90008130/XAB... 

R. Yu, X.F. Zhang, L.L, He, H.Q. Ye, Topology of charge density and elastic properties of TisSiC polymorphs, (June 24, 2004). Lawrence Berkeley National Laboratory. Paper LBNL-55853. 

The filtration of any solution through the ordinary conical funnel may be hastened considerably by the use of a fluted filter-paper, instead of one folded into quarters in the usual way. The folding of a fluted paper may be learnt far more readily by a demonstration in the laboratory than by any written description. 

Sand. Buckets of dry sand for fire-extinguishing should be available in the laboratory and should be strictly reserved for this purpose, and not encumbered with sand-baths, waste-paper, etc. Most fires on the bench may be quickly smothered by the ample use of sand. Sand once used for this purpose should always be thrown away afterwards, and not returned to the buckets, as it may contain appreciable quantities of inflammable, non-volatile materials e.g., nitrobenzene), and be dangerous if used a second time. 

Several chapters in this book are based on articles that appeared in American Laboratory from 1981 to 1988. I wish to acknowledge my coauthors of these papers, F. J. McLafferty, W. Gratzer, and B. P. Angelis. I wish to thank the editors of American Laboratory, especially Brian Howard, for permission to quote extensively from those articles. 

Extensive studies on the Wacker process have been carried out in industrial laboratories. Also, many papers on mechanistic and kinetic studies have been published[17-22]. Several interesting observations have been made in the oxidation of ethylene. Most important, it has been established that no incorporation of deuterium takes place by the reaction carried out in D2O, indicating that the hydride shift takes place and vinyl alcohol is not an intermediate[l,17]. The reaction is explained by oxypailadation of ethylene, / -elimination to give the vinyl alcohol 6, which complexes to H-PdCl, reinsertion of the coordinated vinyl alcohol with opposite regiochemistry to give 7, and aldehyde formation by the elimination of Pd—H. 

E. R. Panick, L. R. Smith, J. A. Russell and W. E. Likos, "Laboratory Evaluation of Safety-Related Additives for Neat Methanol Euel," SAP Paper 902156, (SP 840), Society of Automotive Engineers, Warrendale, Pa., Oct. 1990. 

For different types of collections, this balance is differently defined. For example paper conservation treatments commonly undertaken in the museum conservation laboratory would be impractical in a Hbrary archive having a far greater collection size. The use of treatments for mass paper quantities would be unacceptable in the art museum. Documents in archives and books in Hbraries serve a different goal from art objects in a museum. Their use value Hes primarily in their information rather than in an intrinsic esthetic value. Whereas optimal preservation of that information value requires preservation of the object itself, a copy or even a completely different format could serve the same purpose. 

E. J. Cohn, ia Papers on the Separation of the Formed Elements of Plasma, Laboratory of Physical Chemistry, Harvard University, Boston, 1950. 

G. M. Reistad, paper presented at the Proceedings of the 2nd UN Symposium on the Development and Use of Geothermal Resources, Vol. 1, Lawrence Berkeley Laboratory, San Erancisco, 1975, pp. 2155—2164 "Analysis of the Economic Potential of Solar Thermal Energy to Provide Industrial Process Heat," U.S. ERDN Contract, EY-No-C-02-2829, Intertechnology Corp., 1977. 

Pesticides. Chlorinated hydrocarbon pesticides (qv) are often found in feed or water consumed by cows (19,20) subsequently, they may appear in the milk, where they are not permitted. Tests for pesticides are seldom carried out in the dairy plant, but are most often done in regulatory or private specialized laboratories. Examining milk for insecticide residues involves extraction of fat, because the insecticide is contained in the fat, partitioning with acetonitrile, cleanup (FlorisH [26686-77-1] column) and concentration, saponification if necessary, and determination by means of paper, thin-layer, microcoulometric gas, or electron capture gas chromatography (see Trace and residue analysis). 

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