Page 450 - Corrosion Engineering Principles and Practice

418 C h a p t e r 1 0 C o r r o s i o n i n S o i l s a n d M i c r o b i o l o g i c a l l y I n f l u e n c e d C o r r o s i o n 419

Requires a microscope with high magnification, phase
contrast, and ultraviolet fluorescence, as appropriate.

fluorescent materials may interfere. Cell counts are straightforward, but particulates and Commercially available kits can be inoculated in the field, but growth takes days to weeks. Crude numbers of bacteria, yeast, or fungi can be estimated in contaminated crankcase oil or fuels. Commercial kit

Comments

Microscopic examination: Cell numbers are obtained with a Petroff-Hausser counting chamber. Fluorescent dyes can light up specific Most probable number: Sample is diluted into a series of tubes of specific growth medium. Cell numbers based on growth at various dilutions. Dip slides: A tab coated with g

Method microbes. by gas chromatograph. or organisms.

Microorganisms Cell numbers Specific organisms Viable cell counts Other organisms Identification of microorganisms

Assay SRB APB TABLE 10.9