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"This guide provides personnel who have a limited microbiological background with an understanding of the symptoms, occurance, and consequences of chronic microbial contamination. The guide also suggests means for detection and control of microbial contamination in fuels and fuel systems. This guide applies primarily to gasoline, aviation, boiler, industrial gas turbine, diesel, marine, furnace fuels and blend stocks (see Specifications D396, D910, D975, D1655, D2069, D2880, D3699, D4814, D6227, and D6751), and fuel systems. However, the principles discussed herein also apply generally to crude oil and all liquid petroleum fuels. ASTM Manual 47 provides a more detailed treatment of the concepts introducted in this guide; it also provides a compilation of all of the standards referenced herein that are not found in the Annual Book of ASTM Standards, Section Five on Petroleum Products and Lubricants. This guide is not a compilation of all the concepts and terminology used by microbiologists, but it does provide a general understanding of microbial fuel contamination." -- scope
This book treats corrosion as it occurs and affects processes in real-world situations, and thus points the way to practical solutions. Topics described include the conditions in which petroleum products are corrosive to metals; corrosion mechanisms of petroleum products; which parts of storage tanks containing crude oils and petroleum products undergo corrosion; dependence of corrosion in tanks on type of petroleum products; aggressiveness of petroleum products to polymeric material; how microorganisms take part in corrosion of tanks and pipes containing petroleum products; which corrosion monitoring methods are used in systems for storage and transportation of petroleum products; what corrosion control measures should be chosen; how to choose coatings for inner and outer surfaces of tanks containing petroleum products; and how different additives (oxygenates, aromatic solvents) to petroleum products and biofuels influence metallic and polymeric materials. The book is of interest to corrosion engineers, materials engineers, oil and gas engineers, petroleum engineers, chemists, chemical engineers, mechanical engineers, failure analysts, scientists, and students, designers of tanks, pipelines and other systems for storage and transportation fuels, technicians. The book is of interest to corrosion engineers, materials engineers, oil and gas engineers, petroleum engineers, chemists, chemical engineers, mechanical engineers, failure analysts, scientists, and students, designers of tanks, pipelines and other systems for storage and transportation fuels, technicians. The book is of interest to corrosion engineers, materials engineers, oil and gas engineers, petroleum engineers, chemists, chemical engineers, mechanical engineers, failure analysts, scientists, and students, designers of tanks, pipelines and other systems for storage and transportation fuels, technicians.
THE OLD MAXIM, THAT ANY TEST result is only as good as the sample, is never more true than for analysis of samples drawn for the investigation of microbiological contamination in fuels and fuel systems. Probably more than any other fuel contamination type, microbial contamination will tend to have a highly heterogeneous dispersion that is likely to be in a continual state of change. There may be changes in the overall numbers of microbes present, their viability (and culturability), the relative numbers of the predominant types (genera and species) and the amounts of microbial biomass present [1]. These changes may be due to the microbial activity itself or as a consequence of tank or system operating activities. It is thus apparent that both the timing of sampling operations and selection of appropriate sampling points need careful consideration and planning. In order that those conducting the analyses can put the best possible interpretation on the results obtained, as much information as possible about the sampling needs to be conveyed to the testing laboratory.