tailieunhanh - Volume 13A - Corrosion Fundamentals, Testing, and Protection Part 9

Tham khảo tài liệu 'volume 13a - corrosion fundamentals, testing, and protection part 9', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 10. standard Test Method for Measuring pH of Soil for Use in Corrosion Testing ĨGAríqual Book of ASTM Standards merican Society for Testing and Materials 1995. 11. . Schwerdtfeger Soil Resistivity as Related to Underground Corrosion and Cathodic Protectior Res. Natl. Bur. stand ol 69C No. 1 JanMarch 1965 12. . TomashovTheory of Corrosion and Protection of Metđtèạcmillan 1966 p 399451. . Flitton and E. Escalante Simulated Service Testing in Staitrosion Fundamentals Testing and Protection Vol 13Ạ ASM HandboqkASM International 2003 p 497500 Simulated Service Testing in Soil . Adler Flitton Idaho National Engineering and Environmental Laboratory E. Escalante Corrosion Group National Institute of Science and Technology retired Test Approach Although soil characteristics give some indication of the corrosivity of a soil environment the optimal test metals is to bury specimens in the soil of interest. The concept is simple but there are some impo considerations. For example the type of data sought and the data objectives will determine the desk specimens and the test procedure. Will the data be used as an analog for underground utilities or structui will they be used in models to determine long- term containment failure and contaminant transport into the environment Interest in metal corrosion in soils extends to long-term stability of critical undergrou infrastructure such as water gas oil and waste pipelines and telephone and electric power distribution c Another even more pressing environmental issue concerns the long-term underground containment of le and newly generated hazardous chemical and nuclear wasteswastes requiring isolation and containment hundreds or even thousands of years. In addition to buried specimens of metals provision must be made for electrochemical corrosion measurer and for environmental measurements during the burial period. Periodic retrieval of specimens of an c requires that identical sets be buried one set per retrieval. Each .