Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Fabric storage preparation

Good preparation for storage is a key to good preservation. Storage preparation should be done only by a responsible, trained caretaker. This gives the caretaker an opportunity to check the condition of the museum fabric, preparation material, and storage units. Under no circumstances should visitors be allowed to prepare fabrics for storage. [Pg.180]

Particle Size Reduction. Changes in the physical characteristics of a biomass feedstock often are requited before it can be used as a fuel. Particle size reduction (qv) is performed to prepare the material for direct fuel use, for fabrication into fuel pellets, or for a conversion process. Particle size of the biomass also is reduced to reduce its storage volume, to transport the material as a slurry or pneumatically, or to faciHtate separation of the components. [Pg.16]

The product attacks glass slowly on standing, and a moderate increase in pressure takes place. The product can be stored for a period of several days in a polyethylene bottle, but it is best to prepare the material shortly before use. If prolonged storage is required, a stainless steel cylinder or a bottle fabricated from Teflon polytetrafluoroethylene resin is suggested. [Pg.21]

This type of QC blank consists of a batch or subset of individual SPMDs of the same size and material as those prepared for a specific project. After preparation, SPMD-fabrication blanks are maintained frozen in vapor-tight metal cans under argon at -10 to -20 °C in the laboratory until the analysis of the project SPMDs. Processing and analysis of these blanks is concurrent with and identical to that of environmentally exposed SPMDs. The primary purpose of this type of QC sample is to account for any background contribution due to interferences from SPMD components, and for contamination incurred during laboratory storage, processing, and analytical procedures. [Pg.104]

This type of QC blank consists of a subset of SPMDs, made just prior to initiation of the analysis of an SPMD sample set. Operationally, the only difference between SPMD-process blanks and SPMD-fabrication blanks is the time of preparation and that the SPMD-process blanks are not subjected to storage, but are immediately processed and analyzed along with the environmentally exposed... [Pg.104]

The preparation and study of nanoparticles has attracted a remarkable academic and industrial research effort because of their potential applications, ranging from fundamental studies in quantum physics, fabrication of composite materials, information storage/optoelectronics, immunoassays, to catalysts. The precise control of size and chemical behavior (stabihty and reactivity) by means of the synthesis itself is still one of the main targets because the direct correlation of the new intriguing properties with the particle size which is just between a molecule and a bulk material [140]. [Pg.395]

The series of disposable parts are merely placed on the stage to achieve simplicity of preparation and disposal prior to and after use of the system (Fig. 1 inset) (rrcNote 4). For reuse, a series of platinum electrode units are fabricated separately. The conveyer automatically set the electrode units in designated positions on the parts at the electrode storage site. The electrode units are washed and returned to the site after the electrophoresis procedures are performed. [Pg.159]

ABSTRACT A new class of photosensitive, thermally stable polymers containing photo-labile aromatic amide linkages has been prepared. These polymers can be used to provide lithographic relief images for printing, etch masks for microcircuit fabrication and as contrast media for optical information storage. [Pg.73]

The fabric in a storage unit must be arranged for easy access, and each fabric should have been prepared independently and uniformly so that when it is necessary to take out one museum fabric, others need not be touched, thus eliminating chances for accident and unnecessary handling. The location of each stored fabric should be indicated in the card file the accession number of each piece should be clearly written on the package in the same position as accession numbers on other packages and each package must be easily located. [Pg.181]

The difficulty of cleaning cotton fabrics that were soiled and then stored for several weeks or months before laundering has been noted (38). Detailed information on preparation of historical textiles for storage and display (identification, cleaning, and restoration) is given in two excellent reviews (39, 40) as well as in other papers in this volume. [Pg.197]

The apparatus used for the preparation and purification of xenon tetrafluoride is shown in Fig. 10. The total volume of the manifold including the U-tubes, but excluding all reaction and storage vessels, is about 105 ml. All parts are fabricated of nickel or Monel and are pretreated by... [Pg.255]

Reduction in physical size is often required before biomass is used as a fuel or feedstock. Size-reduction techniques are employed to prepare biomass for direct fuel use, fabrication into fuel pellets, cubes, and briquettes, or conversion. Smaller particles and pieces of biomass reduce its storage volume, facilitate handling of the material in the solid state and transport of the material as a slurry or pneumatically, and sometimes permit ready separation of components such as bark and whitewood. The size of the pieces or particles can be critical when drying is used because the exposed surface area, which is a function of physical size, can determine drying time and the methods and conditions needed to remove moisture. There are a few exceptions where size reduction is not needed, such as in whole-tree burning. [Pg.173]


See other pages where Fabric storage preparation is mentioned: [Pg.180]    [Pg.180]    [Pg.366]    [Pg.26]    [Pg.450]    [Pg.70]    [Pg.705]    [Pg.175]    [Pg.638]    [Pg.1650]    [Pg.257]    [Pg.290]    [Pg.332]    [Pg.75]    [Pg.1696]    [Pg.70]    [Pg.450]    [Pg.259]    [Pg.87]    [Pg.256]    [Pg.57]    [Pg.448]    [Pg.24]    [Pg.98]    [Pg.239]    [Pg.225]    [Pg.166]    [Pg.174]    [Pg.179]    [Pg.460]    [Pg.440]    [Pg.449]    [Pg.395]    [Pg.344]    [Pg.345]    [Pg.109]    [Pg.233]   
See also in sourсe #XX -- [ Pg.176 ]




SEARCH



Fabric preparation

© 2024 chempedia.info