Download or read book Chemical Compatibility Screening Test Results written by and published by . This book was released on 1997 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: A program for evaluating packaging components that may be used in transporting mixed-waste forms has been developed and the first phase has been completed. This effort involved the screening of ten plastic materials in four simulant mixed-waste types. These plastics were butadiene-acrylonitrile copolymer rubber, cross-linked polyethylene (XLPE), epichlorohydrin rubber, ethylene-propylene rubber (EPDM), fluorocarbon (Viton or Kel-F), polytetrafluoroethylene, high-density polyethylene (HDPE), isobutylene-isoprene copolymer rubber (butyl), polypropylene, and styrene-butadiene rubber (SBR). The selected simulant mixed wastes were (1) an aqueous alkaline mixture of sodium nitrate and sodium nitrite; (2) a chlorinated hydrocarbon mixture; (3) a simulant liquid scintillation fluid; and (4) a mixture of ketones. The testing protocol involved exposing the respective materials to 286,000 rads of gamma radiation followed by 14-day exposures to the waste types at 60°C. The seal materials were tested using vapor transport rate (VTR) measurements while the liner materials were tested using specific gravity as a metric. For these tests, a screening criterion of 0.9 g/hr/m2 for VTR and a specific gravity change of 10% was used. Based on this work, it was concluded that while all seal materials passed exposure to the aqueous simulant mixed waste, EPDM and SBR had the lowest VTRs. In the chlorinated hydrocarbon simulant mixed waste, only Viton passed the screening tests. In both the simulant scintillation fluid mixed waste and the ketone mixture simulant mixed waste, none of the seal materials met the screening criteria. For specific gravity testing of liner materials, the data showed that while all materials with the exception of polypropylene passed the screening criteria, Kel-F, HDPE, and XLPE offered the greatest resistance to the combination of radiation and chemicals.
Download or read book Chemical Compatibility Screening Results of Plastic Packaging to Mixed Waste Simulants written by and published by . This book was released on 1995 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have developed a chemical compatibility program for evaluating transportation packaging components for transporting mixed waste forms. We have performed the first phase of this experimental program to determine the effects of simulant mixed wastes on packaging materials. This effort involved the screening of 10 plastic materials in four liquid mixed waste simulants. The testing protocol involved exposing the respective materials to (approximately)3 kGy of gamma radiation followed by 14 day exposures to the waste simulants of 60 C. The seal materials or rubbers were tested using VTR (vapor transport rate) measurements while the liner materials were tested using specific gravity as a metric. For these tests, a screening criteria of (approximately)1 g/m2/hr for VTR and a specific gravity change of 10% was used. It was concluded that while all seal materials passed exposure to the aqueous simulant mixed waste, EPDM and SBR had the lowest VTRs. In the chlorinated hydrocarbon simulant mixed waste, only VITON passed the screening tests. In both the simulant scintillation fluid mixed waste and the ketone mixture simulant mixed waste, none of the seal materials met the screening criteria. It is anticipated that those materials with the lowest VTRs will be evaluated in the comprehensive phase of the program. For specific gravity testing of liner materials the data showed that while all materials with the exception of polypropylene passed the screening criteria, Kel-F, HDPE, and XLPE were found to offer the greatest resistance to the combination of radiation and chemicals.
Download or read book Integration of Test Methodology Material Database and Material Selection Deselection Strategies for a Chemical Material Compatibility Database System written by WJ. Shuely and published by . This book was released on 1995 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of chemical exposure on the degradation of material properties is important to material evaluation and selection for both commercial and military products. Described here are a set of enhancements to a traditional chemical-material compatibility database that were required to support the early selection of chemically resistant materials in a concurrent engineering environment. This initial phase in the development of an integrated chemical-material compatibility system included: organization of tests into a comprehensive scheme, test selection for the initial screening tests in the scheme, the increased standardization of test procedures and reports required to support database queries, and the control of data set flow from the test laboratory directly to the database. Emphasized here is the design of modular database files based on material, chemical, and test specification descriptors that are indexed to the resulting test properties database module. ASTM Committee E49 formats were employed where available. The polymeric material documentation has been implemented by development of a menu-driven laboratory database version of ASTM Guide for the Identification of Polymers (Excludes Thermoset Elastomers) in Computerized Material Property Data-bases (E 1308-92). Examples are provided from the screening test found in the initial section of the test method scheme. One is able to execute a rapid paperless transfer of predictive and experimental screening results to the chemical-material compatibility database, query the results to eliminate a substantial fraction of materials and rank a more limited set of candidate materials to provide a useful "deselection" capability.
Download or read book Geosynthetic Testing for Waste Containment Applications written by Robert M. Koerner and published by ASTM International. This book was released on 1990 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains papers presented at the symposium of the same name held in Las Vegas, January 1990. Examines the selection, testing, design, and use of geosynthetics. Topics include chemical resistance of geomembranes, test methods and procedures to evaluate geomembranes, and performance behavior of geosyn
Download or read book Computerization and Networking of Materials Databases written by Charles P. Sturrock and published by ASTM International. This book was released on 1995 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Office of Environmental Management Technical Reports written by and published by . This book was released on 1997 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1973 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical and Biological Terrorism written by Committee on R&D Needs for Improving Civilian Medical Response to Chemical and Biological Terrorism Incidents and published by National Academies Press. This book was released on 1999-02-26 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: The threat of domestic terrorism today looms larger than ever. Bombings at the World Trade Center and Oklahoma City's Federal Building, as well as nerve gas attacks in Japan, have made it tragically obvious that American civilians must be ready for terrorist attacks. What do we need to know to help emergency and medical personnel prepare for these attacks? Chemical and Biological Terrorism identifies the R&D efforts needed to implement recommendations in key areas: pre-incident intelligence, detection and identification of chemical and biological agents, protective clothing and equipment, early recognition that a population has been covertly exposed to a pathogen, mass casualty decontamination and triage, use of vaccines and pharmaceuticals, and the psychological effects of terror. Specific objectives for computer software development are also identified. The book addresses the differences between a biological and chemical attack, the distinct challenges to the military and civilian medical communities, and other broader issues. This book will be of critical interest to anyone involved in civilian preparedness for terrorist attack: planners, administrators, responders, medical professionals, public health and emergency personnel, and technology designers and engineers.
Download or read book Selection of Polymeric Materials written by E. Alfredo Campo and published by William Andrew. This book was released on 2008-03-06 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today engineers, designers, buyers and all those who have to work with plastics face a dilemma. There has been a proliferation of test methods by which plastic properties are measured. The property data measured by these test methods are not identical and sometimes have large differences. How are engineers, designers, buyers going to decide the type and resin grade and their property data? Which are the valid test methods? The right plastic property data are the difference between success and failure of a design, thus making the property selection process critical. For the first time this book provides a simple and efficient approach to a highly complex and time consuming task. There are over 26,000 different grades of polymers and millions of parts and applications, further adding to the difficulty of the selection process. Selection of Polymeric Materials steers engineers and designers onto the right path to selecting the appropriate values for each plastic property. A large amount of property information has been provided to teach and assist the plastic part designer and others in selecting the right resin and properties for an application. Various standards including ASTM, ISO, UL, and British Specifications have been discussed to help the readers in making sound decisions A simple and efficient approach to a highly complex and time consuming task Allows engineers to select from various standards including ASTM, ISO, UL, and British Specification Presents information on properties such as tensile strength, melt temperature, continuous service temperature, moisture exposure, specific gravity and flammability ratings Tried and true values narrow myriad choices down quickly for readers
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1963 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book OSHA Technical Manual written by United States. Occupational Safety and Health Administration. Directorate of Technical Support and published by . This book was released on 1991 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Colorectal Cancer Screening written by Joseph Anderson, MD and published by Springer Science & Business Media. This book was released on 2011-04-23 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Colorectal Cancer Screening provides a complete overview of colorectal cancer screening, from epidemiology and molecular abnormalities, to the latest screening techniques such as stool DNA and FIT, Computerized Tomography (CT) Colonography, High Definition Colonoscopes and Narrow Band Imaging. As the text is devoted entirely to CRC screening, it features many facts, principles, guidelines and figures related to screening in an easy access format. This volume provides a complete guide to colorectal cancer screening which will be informative to the subspecialist as well as the primary care practitioner. It represents the only text that provides this up to date information about a subject that is continually changing. For the primary practitioner, information on the guidelines for screening as well as increasing patient participation is presentedd. For the subspecialist, information regarding the latest imaging techniques as well as flat adenomas and chromoendoscopy are covered. The section on the molecular changes in CRC will appeal to both groups. The text includes up to date information about colorectal screening that encompasses the entire spectrum of the topic and features photographs of polyps as well as diagrams of the morphology of polyps as well as photographs of CT colonography images. Algorithms are presented for all the suggested guidelines. Chapters are devoted to patient participation in screening and risk factors as well as new imaging technology. This useful volume explains the rationale behind screening for CRC. In addition, it covers the different screening options as well as the performance characteristics, when available in the literature, for each test. This volume will be used by the sub specialists who perform screening tests as well as primary care practitioners who refer patients to be screened for colorectal cancer.
Download or read book Quick Selection Guide to Chemical Protective Clothing written by Krister Forsberg and published by John Wiley & Sons. This book was released on 2014-05-16 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quick Selection Guide to Chemical Protective Clothing provides the reader with the latest information on Selection, Care and Use of Chemical Protective garments and gloves. Topics in the widely-used reference guide include Selection and Use of Chemical Protective Clothing, Chemical Index, Selection Recommendations, Glossary, Standards for Chemical Protective Clothing, Manufactures of Chemical Protective Clothing and European requirements for chemical resistant gloves. The key feature of the book is the color-coded selection recommendations. The red, yellow or green indications are highly appreciated by the users. This sixth edition of the Quick Selection Guide to Chemical Protective Clothing has been updated, to include approximately 1,000 chemicals/chemical brands or mixture of chemicals more than twice the information provided in the original edition. The performance of 9 generic materials and 32 proprietary barriers are compared against the 21 standard test chemicals listed in ASTM F1001. The color-coded recommendations against the broader list of materials now contain 27 representative barrier materials. This best selling pocket guide is the an essential field source for HazMat teams, spill responder, safety professionals, chemists and chemical engineers, industrial hygienists, supervisors, purchase agents, salespeople and other users of chemical protective clothing.
Download or read book OSHA Technical Manual written by United States. Occupational Safety and Health Administration and published by . This book was released on 1990 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 2180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extractables and Leachables written by Dennis Jenke and published by John Wiley & Sons. This book was released on 2022-08-02 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: EXTRACTABLES AND LEACHABLES Learn to address the safety aspects of packaged drug products and medical devices Pharmaceutical drug products and medical devices are expected to be effective and safe to use. This includes minimizing patient, user or product exposure to impurities leached from these items when the drug product is administered or when the medical device is used. Clearly, patient or user exposure to leachables must not adversely impact their health and safety. Furthermore, these impurities must not adversely affect key quality attributes of the drug product or medical device, including its manufacturability, stability, efficacy, appearance, shelf-life and conformance to standards. Extractables and leachables are derived from the drug product’s packaging, manufacturing systems and/or delivery systems or from the medical device’s materials of construction. It is imperative to understand and quantify the release of extractables from these items, the accumulation of leachables in drug products and the release of leachables from medical devices. Once extractables and leachables have been discovered, identified and quantified, their effect on the key product or device quality attributes, including safety, must be systematically and scientifically established according to recognized, rigorous and relevant regulatory and compendial standards and industry-driven best practices. In Extractables and Leachables, the chemical compatibility (including safe use) of drugs (and their containers, delivery devices and manufacturing systems) and medical devices is examined at length, focusing particularly on how trace-level extractables and leachables affect the quality and safety of a medical product and how to assess the magnitude of the effect. This is accomplished by addressing the two critical activities required to develop, register and commercialize safe, effective and affordable clinical therapies; measuring extractables and leachables (chemical characterization) and assessing their impact (for example, toxicological safety risk assessment). Each of these activities is addressed in-depth, based on the existing and developing international regulations and guidelines, current published literature and the author’s extensive personal experience. Written by a key contributor to standards, guidelines, recommended practices and the scientific literature, the book provides “insider” insights beyond those gained by merely reading the relevant texts. Given that the rapidly evolving extractables and leachables landscape, this book provides the most current and crucial information on new and forthcoming regulations and best practices. Extractables and Leachables readers will also find: A thorough summary of regulatory and compendial guidelines and the steps required to meet them A detailed and in-depth review of essential scientific principles and recommended best practices for the design, implementation, interpretation and reporting of chemical characterization studies A practical resource for optimizing the development, registration, and commercialization of safe and effective medical products A helpful tool to maximize product development and successful regulatory outcomes Extractables and Leachables is the essential reference for pharmaceutical scientists, analytical chemists, regulatory affairs professionals, engineers, and toxicologists in areas such as product research and development, product registration and approval, regulatory affairs, analytical science, quality control, and manufacturing.
Download or read book HVAC and Chemical Resistance Handbook for the Engineer and Architect written by Tom Arimes and published by Publisher BCT, Inc.. This book was released on 1994 with total page 1652 pages. Available in PDF, EPUB and Kindle. Book excerpt: The title is misleading until you check out the contents. It is all about HVAC and more. This compilation has organized data frequently used by Mechanical Engineers, Mechanical Contractors and Plant Facility Engineers. The book will end the frustration on a busy day searching for design criteria.
